- Private Spaceflight Anomaly: In this episode, we discuss a recent incident involving the Nyx capsule during the SpaceX Transporter 14 mission. Despite a communication loss and a failed parachute deployment leading to a tragic outcome, the Exploration Company views the mission as a partial success, highlighting the technical milestones achieved.
- NASA's Mars Reconnaissance Orbiter Innovations: We explore how NASA's Mars Reconnaissance Orbiter, after nearly two decades in operation, is performing new manoeuvres to gather deeper insights into the Martian subsurface. The orbiter's ability to roll 120 degrees has significantly enhanced its radar capabilities, allowing it to map ice deposits crucial for future exploration.
- Nova Philip A celestial spectacle unfolds as the nova Philip bursts into visibility, transforming from a faint star to one bright enough to be seen with the naked eye. We delve into the fascinating process of classical nova explosions and provide tips for stargazers hoping to catch a glimpse of this transient phenomenon.
- Exoplanet Habitability Analysis: We discuss a new statistical analysis of exoplanets that has identified promising candidates for life. By examining key characteristics of both planets and their stars, researchers have categorised exoplanets based on their potential habitability, with Kepler 22b emerging as a leading candidate for further investigation.
- NASA and Australia’s Lunar Laser Communications: We highlight an exciting collaboration between NASA and the Australian National University to develop laser communication technologies for the Artemis 2 mission. This innovative approach promises to enhance data transmission speeds and efficiency for future lunar and deep space missions.
For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTube Music, TikTok, and our new Instagram account! Don’t forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.
Thank you for tuning in. This is Anna signing off. Until next time, keep looking up and stay curious about the wonders of our universe.
Chapters:
00:00 - Welcome to Astronomy Daily
01:10 - Private spaceflight anomaly
10:00 - NASA's Mars Reconnaissance Orbiter innovations
20:00 - Nova Philip
30:00 - Exoplanet habitability analysis
40:00 - NASA and Australia’s lunar laser communications
✍️ Episode References
Nyx Capsule Mission Update
[Celestis](https://www.celestis.com/)
Mars Reconnaissance Orbiter
[NASA](https://www.nasa.gov/)
Nova Philip Information
[All Sky Automated Survey](https://www.astronomy.ohio-state.edu/~assn/ASAS.html)
Exoplanet Habitability Study
[UC Irvine](https://www.uci.edu/)
NASA and ANU Lunar Collaboration
[NASA](https://www.nasa.gov/)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io/)
Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-space-news-updates--5648921/support.
Sponsor Details:
Ensure your online privacy by using NordVPN. To get our special listener deal and save a lot of money, visit www.bitesz.com/nordvpn. You'll be glad you did!
Become a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click Here
00:00:00 --> 00:00:02 Anna: Welcome to Astronomy Daily, your go to
00:00:02 --> 00:00:04 podcast for the latest and greatest in space
00:00:04 --> 00:00:07 news. I'm your host Anna, and I'm thrilled
00:00:07 --> 00:00:09 to have you join me today as we embark on
00:00:09 --> 00:00:11 another fascinating journey through the
00:00:11 --> 00:00:13 cosmos. We have a packed episode for you
00:00:14 --> 00:00:16 covering some truly remarkable developments
00:00:16 --> 00:00:18 and a few unexpected turns in our exploration
00:00:18 --> 00:00:21 of the universe. Today we'll discuss a
00:00:21 --> 00:00:23 private spaceflight mission that faced an
00:00:23 --> 00:00:26 unexpected anomaly. We'll then look at how
00:00:26 --> 00:00:28 NASA's Mars Reconnaissance Orbiter is
00:00:28 --> 00:00:30 learning new manoeuvres after nearly two
00:00:30 --> 00:00:33 decades, offering fresh insights into the Red
00:00:33 --> 00:00:36 Planet for stargazers. We'll highlight a
00:00:36 --> 00:00:38 recent nova explosion that made a previously
00:00:38 --> 00:00:40 dim star visible to the naked eye.
00:00:41 --> 00:00:43 We'll also dive into a new statistical
00:00:43 --> 00:00:45 analysis of exoplanet habitability,
00:00:45 --> 00:00:47 revealing promising candidates for life.
00:00:48 --> 00:00:50 Finally, we'll explore a cutting edge
00:00:50 --> 00:00:52 collaboration between NASA and Australia on
00:00:52 --> 00:00:55 lunar laser communications for the Artemis 2
00:00:55 --> 00:00:56 mission.
00:00:56 --> 00:00:57 So buckle up and let's get started.
00:00:59 --> 00:01:00 First up, let's talk about a recent private
00:01:00 --> 00:01:02 space flight that didn't quite go according
00:01:02 --> 00:01:05 to plan, yet is still being called a partial
00:01:05 --> 00:01:08 success by the exploration company. This
00:01:08 --> 00:01:11 incident involved their Nyx capsule, which
00:01:11 --> 00:01:13 was part of the SpaceX Transporter 14
00:01:13 --> 00:01:15 rideshare mission launched on June 23.
00:01:16 --> 00:01:18 Among the 70 payloads sent into orbit, the
00:01:18 --> 00:01:20 Nyx capsule had a very special cargo
00:01:21 --> 00:01:23 Memorial remains contributed by loved ones
00:01:23 --> 00:01:25 through Celestis Memorial Space Flights.
00:01:26 --> 00:01:28 Celestis offers various tiers of space
00:01:28 --> 00:01:31 memorial services, from launching DNA into
00:01:31 --> 00:01:33 space and returning it to Earth to sending
00:01:33 --> 00:01:36 remains into deep space for their 25th
00:01:36 --> 00:01:38 launch. Dubbed the Perseverance Flight,
00:01:38 --> 00:01:41 Celestis partnered with the Exploration
00:01:41 --> 00:01:43 Company's Mission Possible to carry its
00:01:43 --> 00:01:46 memorial payload aboard the Nyx capsule with
00:01:46 --> 00:01:49 the intention of returning it to Earth. The
00:01:49 --> 00:01:51 mission proceeded nominally throughout, with
00:01:51 --> 00:01:54 the capsule performing as expected, powering
00:01:54 --> 00:01:56 its payloads in orbit, stabilising itself
00:01:57 --> 00:01:59 and even re establishing communication after
00:01:59 --> 00:02:02 the expected blackout period during RE entry.
00:02:02 --> 00:02:05 This blackout happens when intense friction
00:02:05 --> 00:02:07 with the atmosphere creates a superheated
00:02:07 --> 00:02:09 plasma layer around the spacecraft.
00:02:09 --> 00:02:12 Everything seemed to be going perfectly right
00:02:12 --> 00:02:14 up until a few minutes before its scale
00:02:14 --> 00:02:16 scheduled splashdown in the Pacific Ocean.
00:02:17 --> 00:02:19 That's when an anomaly occurred. The
00:02:19 --> 00:02:21 exploration company reported losing
00:02:21 --> 00:02:23 communication with Nyx. A later statement
00:02:23 --> 00:02:25 from Celestis shed more light on the issue,
00:02:25 --> 00:02:27 confirming that the capsule's parachute
00:02:27 --> 00:02:30 system failed to deploy. This tragic
00:02:30 --> 00:02:32 failure resulted in the Nyx capsule impacting
00:02:32 --> 00:02:35 the Pacific Ocean and dispersing its contents
00:02:35 --> 00:02:38 at sea. It's an incredibly sombre outcome
00:02:38 --> 00:02:40 for the families who entrusted their loved
00:02:40 --> 00:02:42 ones remains to this journey. Celestis
00:02:42 --> 00:02:44 expressed their hope that families will find
00:02:44 --> 00:02:47 some Peace in knowing their loved ones were
00:02:47 --> 00:02:50 part of a historic journey. Launched into
00:02:50 --> 00:02:52 space, orbited Earth and are now
00:02:52 --> 00:02:55 resting in the vastness of the Pacific, akin
00:02:55 --> 00:02:58 to a traditional and honoured sea scattering.
00:02:58 --> 00:03:00 The Exploration company also extended an
00:03:00 --> 00:03:03 apology to all their clients. Despite this
00:03:03 --> 00:03:06 significant setback, the Exploration company
00:03:06 --> 00:03:08 is viewing the mission as a partial success.
00:03:09 --> 00:03:11 They highlight the technical, um, milestones
00:03:11 --> 00:03:13 achieved, emphasising their ambition and the
00:03:13 --> 00:03:16 inherent risks involved in innovation. The
00:03:16 --> 00:03:18 Nyx capsule is a crucial part of their future
00:03:18 --> 00:03:21 plans, designed to transport both crew and
00:03:21 --> 00:03:24 cargo to and from low Earth orbit and
00:03:24 --> 00:03:27 beyond. They are determined not to let this
00:03:27 --> 00:03:30 snag slow them down and are already preparing
00:03:30 --> 00:03:33 to re fly as soon as possible, leveraging the
00:03:33 --> 00:03:34 lessons learned from this ongoing
00:03:34 --> 00:03:35 investigation.
00:03:37 --> 00:03:39 Now let's turn our gaze to Mars, where NASA's
00:03:39 --> 00:03:42 Mars Reconnaissance Orbiter, or MRO, is
00:03:42 --> 00:03:43 proving that you can indeed teach an old
00:03:43 --> 00:03:46 spacecraft new tricks. After nearly two
00:03:46 --> 00:03:48 decades orbiting the Red Planet, MRO is
00:03:48 --> 00:03:50 literally on a roll, performing new
00:03:50 --> 00:03:53 manoeuvres to extract even more science data.
00:03:53 --> 00:03:56 Engineers have managed to teach this probe to
00:03:56 --> 00:03:58 roll almost completely upside down, a feat
00:03:58 --> 00:04:00 that allows it to peer deeper beneath the
00:04:00 --> 00:04:02 Martian surface in its hunt for liquid and
00:04:02 --> 00:04:05 frozen water. These new capabilities,
00:04:05 --> 00:04:07 detailed in a recent paper, describe three
00:04:07 --> 00:04:10 very large roles executed between
00:04:10 --> 00:04:13 2023 and 2024. This
00:04:13 --> 00:04:15 innovative approach means that entirely new
00:04:15 --> 00:04:18 regions of the Martian subsurface are now
00:04:18 --> 00:04:21 accessible for exploration. While MRO M
00:04:21 --> 00:04:23 was originally designed to roll up to 30
00:04:23 --> 00:04:26 degrees to point its instruments, these new
00:04:26 --> 00:04:29 rolls push the limits to a full 120
00:04:29 --> 00:04:31 degrees. The main beneficiary of these
00:04:31 --> 00:04:34 extreme manoeuvres is the shallow radar, or
00:04:34 --> 00:04:37 SHARAD instrument. SHARAD is designed to
00:04:37 --> 00:04:40 penetrate one to two kilometres below ground,
00:04:40 --> 00:04:42 helping scientists distinguish between
00:04:42 --> 00:04:44 materials like rock, sand and ice.
00:04:45 --> 00:04:47 It has been instrumental in mapping
00:04:47 --> 00:04:49 subsurface ice deposits, which are crucial
00:04:49 --> 00:04:51 for understanding Mars climate and geology
00:04:51 --> 00:04:54 and are also vital potential resources for
00:04:54 --> 00:04:56 future human missions. However,
00:04:56 --> 00:04:59 Sharad's antennas were mounted at the back of
00:04:59 --> 00:05:01 the orbiter to give prime viewing to other
00:05:01 --> 00:05:03 cameras, which inadvertently caused parts of
00:05:03 --> 00:05:05 the spacecraft to interfere with its radar
00:05:05 --> 00:05:07 signals, making images less clear.
00:05:08 --> 00:05:11 By performing these dramatic 120 degree
00:05:11 --> 00:05:13 rolls, the team found they could give the
00:05:13 --> 00:05:15 radio waves an unobstructed path to the
00:05:15 --> 00:05:18 surface, strengthening the radar signal by 10
00:05:18 --> 00:05:21 times or more and providing a much clearer
00:05:21 --> 00:05:22 picture of the Martian underground.
00:05:23 --> 00:05:26 Planning these roles isn't simple. MRO
00:05:26 --> 00:05:28 carries five science instruments, each with
00:05:28 --> 00:05:30 different pointing requirements. Regular
00:05:30 --> 00:05:32 rolls are planned weeks in advance, with
00:05:32 --> 00:05:34 instrument teams negotiating for science
00:05:34 --> 00:05:37 time. An algorithm then commands the orbiter
00:05:37 --> 00:05:39 to roll, adjusting solar arrays for power and
00:05:39 --> 00:05:41 the high gain antenna for communication with
00:05:41 --> 00:05:44 Earth. The very large rolls are
00:05:44 --> 00:05:47 even more complex, requiring special
00:05:47 --> 00:05:50 analysis to ensure enough battery power for
00:05:50 --> 00:05:53 safety, as the spacecraft's antenna isn't
00:05:53 --> 00:05:55 pointed at Earth and its solar arrays can't
00:05:55 --> 00:05:58 track the sun during the manoeuvre. Because
00:05:58 --> 00:06:00 of these challenges, the mission is currently
00:06:00 --> 00:06:03 limited to one or two of these very large
00:06:03 --> 00:06:06 rolls per year, although engineers hope to
00:06:06 --> 00:06:08 streamline the process for more frequent use.
00:06:09 --> 00:06:11 In addition to shared, another MRO
00:06:11 --> 00:06:13 instrument, the Mars Climate Sounder, is also
00:06:13 --> 00:06:16 adapting its operations. This instrument,
00:06:16 --> 00:06:18 which provides detailed information on Mars's
00:06:18 --> 00:06:21 atmosphere, now relies on MRO's standard
00:06:21 --> 00:06:23 roles for its observations and calibrations
00:06:23 --> 00:06:26 as its ageing gimbal has become unreliable.
00:06:26 --> 00:06:28 These clever adaptations ensure that MRO
00:06:28 --> 00:06:30 continues to deliver cutting edge science
00:06:31 --> 00:06:33 even as it approaches its two decade mark in
00:06:33 --> 00:06:33 space.
00:06:34 --> 00:06:37 From the robotic wonders of Mars, we now
00:06:37 --> 00:06:40 shift our focus to a celestial spectacle
00:06:40 --> 00:06:43 happening right now in our own night sky. An
00:06:43 --> 00:06:46 ordinarily dim star has suddenly burst into
00:06:46 --> 00:06:48 brilliance, putting on a powerful display
00:06:48 --> 00:06:51 that's even visible to the naked eye. We're
00:06:51 --> 00:06:54 talking about the Nova V462 Lupi,
00:06:54 --> 00:06:57 first spotted on June 12 by the All Sky
00:06:57 --> 00:06:59 Automated Survey for Supernovae.
00:06:59 --> 00:07:02 This star, usually far too faint for us to
00:07:02 --> 00:07:05 see with a visual magnitude of 22.3, has
00:07:05 --> 00:07:07 undergone a dramatic transformation. Its
00:07:07 --> 00:07:09 explosion of radiation has caused it to
00:07:09 --> 00:07:12 brighten so significantly that it appears as
00:07:12 --> 00:07:14 if brand new star is shining in the night
00:07:14 --> 00:07:17 sky. Just as a reminder, the lower an
00:07:17 --> 00:07:19 object's magnitude, the brighter it appears.
00:07:20 --> 00:07:22 Our eyes can typically pick out stars with a
00:07:22 --> 00:07:25 magnitude of plus 6.5 or greater under good
00:07:25 --> 00:07:28 dark sky conditions. So what
00:07:28 --> 00:07:30 exactly is a classical nova? It's a
00:07:30 --> 00:07:32 fascinating type of stellar explosion that
00:07:32 --> 00:07:35 occurs in binary star systems. Imagine a
00:07:35 --> 00:07:37 white dwarf star, which is the dense remnant
00:07:37 --> 00:07:40 of a star like our sun, orbiting very closely
00:07:40 --> 00:07:43 with a companion star. The white dwarf's
00:07:43 --> 00:07:45 strong gravitational pull strips mass
00:07:46 --> 00:07:48 mostly hydrogen from its companion.
00:07:49 --> 00:07:51 This material then accumulates on the surface
00:07:51 --> 00:07:54 of the white dwarf. As more and more material
00:07:54 --> 00:07:57 piles up, it becomes incredibly hot and
00:07:57 --> 00:07:59 dense, eventually reaching a critical point
00:07:59 --> 00:08:01 where a cataclysmic fusion reaction is
00:08:01 --> 00:08:04 ignited. This sudden, powerful
00:08:04 --> 00:08:07 explosion releases a colossal outpouring
00:08:07 --> 00:08:09 of radiation, which is what we observe as a
00:08:09 --> 00:08:12 nova. Soon after its discovery,
00:08:12 --> 00:08:15 V462 Lupi was reported to be
00:08:15 --> 00:08:17 visible through binoculars with an apparent
00:08:17 --> 00:08:19 magnitude of around 7.9.
00:08:20 --> 00:08:22 It continued to brighten steadily in the days
00:08:22 --> 00:08:25 that followed, eventually becoming visible to
00:08:25 --> 00:08:27 the naked eye around the middle of June, with
00:08:27 --> 00:08:29 some reports even placing its peak brightness
00:08:30 --> 00:08:32 at over 5.5. While it was
00:08:32 --> 00:08:35 truly spectacular, the nova is now on the
00:08:35 --> 00:08:38 decline and its brightness is fading. But
00:08:38 --> 00:08:40 don't despair. You still have a chance to
00:08:40 --> 00:08:42 witness this ancient light before it vanishes
00:08:42 --> 00:08:45 from our view. The dark skies around the new
00:08:45 --> 00:08:47 moon offer a perfect opportunity to get away
00:08:47 --> 00:08:49 from city lights and hunt down
00:08:49 --> 00:08:52 V462 Lupi. We
00:08:52 --> 00:08:54 recommend bringing a pair of 10x50
00:08:54 --> 00:08:56 binoculars, which will make it easier to spot
00:08:56 --> 00:08:58 the subsiding light while providing a wide
00:08:58 --> 00:09:00 field of view to appreciate the surrounding
00:09:00 --> 00:09:02 stars. To find
00:09:02 --> 00:09:05 V462 Lupi, you'll need to look
00:09:05 --> 00:09:08 in the constellation Lupus the Wolf, near the
00:09:08 --> 00:09:10 bright stars Delta Lupi and Kappa Centauri.
00:09:11 --> 00:09:13 For precise positioning, a star chart is your
00:09:13 --> 00:09:16 best friend. You can generate one easily on
00:09:16 --> 00:09:18 the American association for Variable Stars
00:09:18 --> 00:09:21 or AAVSO website. Just type
00:09:21 --> 00:09:24 V462, loop into the Pick a Star box
00:09:24 --> 00:09:26 and click Create a Finder Chart.
00:09:27 --> 00:09:28 Skywatchers in the Southern Hemisphere will
00:09:28 --> 00:09:31 have the best view as, uh, the nova will
00:09:31 --> 00:09:33 appear highest in the post sunset sky for
00:09:33 --> 00:09:36 them. For our listeners in The United States,
00:09:37 --> 00:09:40 V462 Lupi will be
00:09:40 --> 00:09:42 visible close to the southern horizon,
00:09:42 --> 00:09:44 especially if you're in states closest to the
00:09:44 --> 00:09:47 equator, such as Texas, Florida and
00:09:47 --> 00:09:49 Louisiana. It's a fleeting but powerful
00:09:49 --> 00:09:51 reminder of the dynamic nature of our
00:09:51 --> 00:09:52 universe.
00:09:54 --> 00:09:56 Next up, let's shift our gaze far beyond our
00:09:56 --> 00:09:59 solar system to the fascinating world of
00:09:59 --> 00:10:01 exoplanets and the ongoing search for life.
00:10:02 --> 00:10:04 While direct imaging of exoplanet atmospheres
00:10:04 --> 00:10:07 or discovering systems with multiple planets
00:10:07 --> 00:10:09 might grab more headlines, one of the most
00:10:09 --> 00:10:11 powerful and often underappreciated tools in
00:10:11 --> 00:10:14 an astrobiologist's kit is statistics.
00:10:15 --> 00:10:17 It's absolutely crucial for ensuring that
00:10:17 --> 00:10:19 what we observe is real and not just an
00:10:19 --> 00:10:22 artefact of our data or observational
00:10:22 --> 00:10:25 techniques. A new paper by Caleb Traxler
00:10:25 --> 00:10:27 and his co authors at UC Irvine has done just
00:10:27 --> 00:10:30 that, statistically analysing a subset of
00:10:30 --> 00:10:32 thousands of exoplanets to judge their
00:10:32 --> 00:10:34 habitability. For decades, the search for
00:10:34 --> 00:10:37 potentially life supporting exoplanets has
00:10:37 --> 00:10:39 largely revolved around the concept of the
00:10:39 --> 00:10:42 habitable zone. This is essentially a
00:10:42 --> 00:10:44 calculation of a planet's average temperature
00:10:44 --> 00:10:46 to determine if liquid water, a critical
00:10:46 --> 00:10:49 medium for life as we know it, could exist on
00:10:49 --> 00:10:52 its surface. However, the authors of this new
00:10:52 --> 00:10:54 study argue that such a one dimensional
00:10:54 --> 00:10:56 system is too general and not practically
00:10:56 --> 00:10:59 useful for pinpointing planets with a high
00:10:59 --> 00:11:02 probability of supporting life. Mhm. Instead,
00:11:02 --> 00:11:04 they propose a more comprehensive approach,
00:11:04 --> 00:11:06 looking at characteristics of both the planet
00:11:06 --> 00:11:08 and its parent star, and then Comparing these
00:11:08 --> 00:11:11 to Earth, which remains our baseline for a
00:11:11 --> 00:11:13 habitable world. They analysed each
00:11:13 --> 00:11:16 exoplanet based on four key its
00:11:16 --> 00:11:19 radius, temperature, insolation, flux, that
00:11:19 --> 00:11:21 is how much sunlight it receives, and
00:11:21 --> 00:11:23 density. For the exoplanet's host star,
00:11:23 --> 00:11:25 they examined its effective temperature,
00:11:25 --> 00:11:28 radius, mass and metallicity, which is the
00:11:28 --> 00:11:30 ratio of its iron content to its hydrogen
00:11:30 --> 00:11:33 content. Using these eight
00:11:33 --> 00:11:36 parameters, they sorted 517
00:11:36 --> 00:11:38 exoplanets for which this data was available
00:11:38 --> 00:11:41 into four distinct categories. An
00:11:41 --> 00:11:43 excellent candidate meant the planet was
00:11:43 --> 00:11:45 similar enough to Earth to be of strong
00:11:45 --> 00:11:48 interest. Good planet poor
00:11:48 --> 00:11:50 star indicated that at least one of the
00:11:50 --> 00:11:52 star's parameters significantly differed from
00:11:52 --> 00:11:55 our Sun. Conversely, good
00:11:55 --> 00:11:58 star poor planet meant the
00:11:58 --> 00:12:00 planet's characteristics were significantly
00:12:00 --> 00:12:02 different from Earth. The final category,
00:12:02 --> 00:12:04 poor candidate, applied to systems where
00:12:04 --> 00:12:07 neither the star nor the planet fit the bill.
00:12:08 --> 00:12:10 Interestingly, the good star poor planet
00:12:10 --> 00:12:12 category contained the vast majority of
00:12:12 --> 00:12:15 exoplanets, accounting for 388
00:12:15 --> 00:12:18 systems, or 75% of the data set.
00:12:18 --> 00:12:21 The researchers suggest that this isn't
00:12:21 --> 00:12:23 necessarily a physical reality, but rather a
00:12:23 --> 00:12:26 detection bias. Techniques
00:12:26 --> 00:12:28 commonly used to find exoplanets like the
00:12:28 --> 00:12:30 transit method are heavily biassed towards
00:12:30 --> 00:12:32 detecting large planets with short orbital
00:12:32 --> 00:12:34 periods, which would place them firmly in
00:12:34 --> 00:12:37 this category. They believe that with longer
00:12:37 --> 00:12:39 observational times, we could find many more
00:12:39 --> 00:12:42 planets that fit into the excellent candidate
00:12:42 --> 00:12:42 bucket.
00:12:43 --> 00:12:46 And speaking of excellent candidates, out of
00:12:46 --> 00:12:49 the entire 517 planet dataset,
00:12:49 --> 00:12:51 only three were classified as
00:12:51 --> 00:12:54 ExcellentEarth itself Kepler
00:12:54 --> 00:12:55 22b and Kepler
00:12:55 --> 00:12:58 538b. Kepler 22b
00:12:58 --> 00:13:01 in particular stands out as a truly promising
00:13:01 --> 00:13:04 prospect, with only a 3.1% difference
00:13:04 --> 00:13:07 in temperature and a mere 1% difference in
00:13:07 --> 00:13:10 insolation compared to Earth. The paper
00:13:10 --> 00:13:12 identifies it as having the highest
00:13:12 --> 00:13:14 likelihood of harbouring life, making it a
00:13:14 --> 00:13:17 prime target for atmospheric observation by
00:13:17 --> 00:13:19 the James Webb Space Telescope. Despite its
00:13:19 --> 00:13:22 distance of 635 light years.
00:13:22 --> 00:13:25 While Kepler 538B is
00:13:25 --> 00:13:28 larger and hotter than Earth, it still falls
00:13:28 --> 00:13:30 within the realm of potential habitability.
00:13:31 --> 00:13:33 This rarity highlights that Earth is
00:13:33 --> 00:13:35 statistically unique, but not so rare as to
00:13:35 --> 00:13:37 require some miraculous confluence of
00:13:37 --> 00:13:39 planetary and stellar characteristics.
00:13:40 --> 00:13:43 Another rare type found in this analysis were
00:13:43 --> 00:13:45 planets in the good planet poor star
00:13:45 --> 00:13:47 category. Only six planets landed here
00:13:47 --> 00:13:49 because their host stars, which were all M
00:13:49 --> 00:13:52 dwarfs, the most common stars in our galaxy,
00:13:52 --> 00:13:54 fell outside the defined habitable
00:13:54 --> 00:13:57 temperature range. However, the
00:13:57 --> 00:13:59 authors point out that despite lying outside
00:13:59 --> 00:14:01 the generally accepted framework, these
00:14:01 --> 00:14:03 candidates still have a good chance of
00:14:03 --> 00:14:04 harbouring life given their other physical
00:14:04 --> 00:14:07 parameters. Many are already under
00:14:07 --> 00:14:09 observation from the James Webb space
00:14:09 --> 00:14:11 telescope. And if they prove to have viable
00:14:11 --> 00:14:14 habitable conditions, it could revolutionise
00:14:14 --> 00:14:17 the field of astrobiology due to the sheer
00:14:17 --> 00:14:20 prevalence of M dwarf host stars in the
00:14:20 --> 00:14:22 galactic population. This statistical
00:14:22 --> 00:14:25 analysis reinforces several key points that
00:14:25 --> 00:14:27 astrobiologists have known for some time.
00:14:28 --> 00:14:31 Kepler 22B remains a leading candidate for
00:14:31 --> 00:14:34 further investigation, offering our best
00:14:34 --> 00:14:35 current chance at finding evidence of, uh,
00:14:35 --> 00:14:38 life beyond Earth. It also suggests
00:14:38 --> 00:14:40 that conditions on Earth, while relatively
00:14:40 --> 00:14:43 rare, are not so rare as to be a statistical
00:14:43 --> 00:14:45 impossibility or a miracle. And
00:14:45 --> 00:14:48 crucially, it highlights the significant bias
00:14:48 --> 00:14:50 in our current exoplanet detection methods
00:14:51 --> 00:14:53 towards planets that, due to their large size
00:14:53 --> 00:14:56 and short orbital periods, might not be the
00:14:56 --> 00:14:59 most habitable. As astrobiology continues
00:14:59 --> 00:15:02 to advance, this kind of rigorous statistical
00:15:02 --> 00:15:05 analysis will provide invaluable context,
00:15:05 --> 00:15:07 helping to direct our powerful new
00:15:07 --> 00:15:09 observational equipment towards the areas
00:15:09 --> 00:15:11 most likely to answer one of humanity's most
00:15:11 --> 00:15:13 profound questions.
00:15:13 --> 00:15:16 Are we alone? Now let's
00:15:16 --> 00:15:18 talk about how we'll communicate with our
00:15:18 --> 00:15:20 brave astronauts as they venture back to the
00:15:20 --> 00:15:23 moon. As NASA gears up for its Artemis 2
00:15:23 --> 00:15:25 mission, there's an exciting collaboration
00:15:25 --> 00:15:27 happening between the agency's Glenn Research
00:15:27 --> 00:15:30 Centre in Cleveland and the Australian
00:15:30 --> 00:15:32 National University, or anu, to test
00:15:32 --> 00:15:35 some truly inventive and cost saving laser
00:15:35 --> 00:15:37 communications technologies in the lunar
00:15:37 --> 00:15:39 environment. Traditionally, communicating in
00:15:39 --> 00:15:42 space has relied on radio waves. However,
00:15:42 --> 00:15:45 NASA is actively exploring laser or
00:15:45 --> 00:15:48 optical communications which promise to send
00:15:48 --> 00:15:51 data anywhere from 10 to 100 times faster
00:15:51 --> 00:15:53 back to Earth. Instead of radio signals,
00:15:53 --> 00:15:56 these cutting edge systems use infrared
00:15:56 --> 00:15:58 light to transmit high definition video,
00:15:59 --> 00:16:01 pictures, voice and vital science
00:16:01 --> 00:16:04 data across vast cosmic distances
00:16:04 --> 00:16:06 in significantly less time.
00:16:07 --> 00:16:09 While NASA has successfully demonstrated
00:16:09 --> 00:16:11 laser communications in previous technology
00:16:11 --> 00:16:14 tests, Artemis II will mark the first
00:16:14 --> 00:16:17 crewed mission to attempt using lasers to
00:16:17 --> 00:16:20 transmit data from deep space. To support
00:16:20 --> 00:16:22 this ambitious endeavour, researchers working
00:16:22 --> 00:16:24 on NASA's Real Time Optical Receiver or
00:16:24 --> 00:16:27 Realtor, project have developed a remarkably
00:16:27 --> 00:16:30 cost effective laser transceiver built
00:16:30 --> 00:16:32 largely using commercial off the shelf parts.
00:16:33 --> 00:16:35 Earlier this year, NASA Glenn engineers
00:16:35 --> 00:16:37 meticulously built and tested a replica of
00:16:37 --> 00:16:40 this system at their aerospace communications
00:16:40 --> 00:16:42 facility. Now they're working closely with
00:16:42 --> 00:16:45 ANU to build an identical system using the
00:16:45 --> 00:16:47 very same hardware models. All to prepare for
00:16:47 --> 00:16:49 the university's crucial Artemis 2 laser
00:16:49 --> 00:16:52 communications demonstration. Jennifer
00:16:52 --> 00:16:54 Downey, co principal investigator for the
00:16:54 --> 00:16:57 Real Tour project at NASA Glenn, highlights
00:16:57 --> 00:17:00 the significance of this work, stating that
00:17:00 --> 00:17:02 Australia's upcoming lunar experiment could
00:17:02 --> 00:17:05 showcase the capability, affordability and
00:17:05 --> 00:17:07 reproducibility of the deep space receiver
00:17:07 --> 00:17:10 engineered by Glenn. It's an important step
00:17:10 --> 00:17:12 in proving the feasibility of using
00:17:12 --> 00:17:14 commercial parts to develop accessible
00:17:14 --> 00:17:16 technologies for sustainable exploration
00:17:16 --> 00:17:19 beyond Earth during the Artemis 2
00:17:19 --> 00:17:21 mission, currently scheduled for early
00:17:21 --> 00:17:24 2026, NASA plans to fly an
00:17:24 --> 00:17:27 optical communications system aboard the
00:17:27 --> 00:17:29 Orion spacecraft. This system will be put to
00:17:29 --> 00:17:32 the test, attempting to transmit recorded 4K
00:17:32 --> 00:17:35 ultra high definition video, flight
00:17:35 --> 00:17:37 procedures, pictures, science data and even
00:17:37 --> 00:17:39 voice communications from the Moon all the
00:17:39 --> 00:17:42 way back to Earth. Almost 10 miles away
00:17:42 --> 00:17:44 from Cleveland at the Mount Stromlo
00:17:44 --> 00:17:47 Observatory Ground Station, ANU researchers
00:17:47 --> 00:17:49 are eagerly hoping to receive this data
00:17:49 --> 00:17:52 during Orion's journey around the Moon using
00:17:52 --> 00:17:54 the VARI Glenn developed transceiver model.
00:17:54 --> 00:17:57 This ground station will serve as a vital
00:17:57 --> 00:17:59 test location for the new transceiver design,
00:17:59 --> 00:18:01 though it won't be one of the mission's
00:18:01 --> 00:18:04 primary ground stations. If this test proves
00:18:04 --> 00:18:06 successful, it will be a game changer,
00:18:06 --> 00:18:08 demonstrating that readily available
00:18:08 --> 00:18:10 commercial parts can indeed be used to build
00:18:10 --> 00:18:12 affordable and scalable space communication
00:18:12 --> 00:18:15 systems for future missions, not just to the
00:18:15 --> 00:18:17 Moon, but even to Mars and beyond.
00:18:18 --> 00:18:21 Marie Piasecki, technology portfolio
00:18:21 --> 00:18:23 manager for NASA's Space Communications and
00:18:23 --> 00:18:26 Navigation or SCAN programme, emphasises
00:18:26 --> 00:18:28 that engaging with the Australian National
00:18:28 --> 00:18:31 University to expand commercial laser
00:18:31 --> 00:18:32 communications offerings across the world
00:18:33 --> 00:18:35 will further demonstrate how this advanced
00:18:35 --> 00:18:38 satellite communications capability is ready
00:18:38 --> 00:18:40 to support the agency's networks and missions
00:18:40 --> 00:18:42 as we set our sights on deep space
00:18:42 --> 00:18:45 exploration. As NASA continues to
00:18:45 --> 00:18:47 investigate the feasibility of using
00:18:47 --> 00:18:50 commercial parts for ground stations, Glenn
00:18:50 --> 00:18:52 researchers will continue to provide critical
00:18:52 --> 00:18:54 support in preparation for Australia's
00:18:54 --> 00:18:56 demonstration. These strong global
00:18:56 --> 00:18:59 partnerships are key to advancing technology
00:18:59 --> 00:19:02 breakthroughs and are instrumental as NASA
00:19:02 --> 00:19:04 expands humanity's reach from the Moon to
00:19:04 --> 00:19:07 Mars, all while fueling innovations that
00:19:07 --> 00:19:09 improve life here on Earth.
00:19:10 --> 00:19:12 And that brings us to the end of another
00:19:13 --> 00:19:15 fascinating journey through the cosmos on
00:19:15 --> 00:19:18 Astronomy Daily. I'm
00:19:18 --> 00:19:21 Anna, your host and I hope you enjoyed our
00:19:21 --> 00:19:24 look at the latest developments. Don't
00:19:24 --> 00:19:25 forget, you can listen to all our back
00:19:25 --> 00:19:28 episodes and find more information by
00:19:28 --> 00:19:30 visiting our website@astronomydaily.IO. um,
00:19:31 --> 00:19:33 you can also subscribe to Astronomy Daily on
00:19:33 --> 00:19:36 Apple podcasts, Spotify and YouTube
00:19:36 --> 00:19:39 or wherever you get your podcasts. And please
00:19:39 --> 00:19:42 follow us on social media. Just search for
00:19:42 --> 00:19:44 Astro Daily Pod on Facebook X,
00:19:44 --> 00:19:47 YouTube, YouTube, Music, Instagram, Tumblr
00:19:47 --> 00:19:50 and TikTok. Until next time, keep looking up