A Gamma-Ray Burst’s Split Personality: The Week Swift Fell Silent
Bitesz. com | PodcastsOctober 27, 202600:25:47

A Gamma-Ray Burst’s Split Personality: The Week Swift Fell Silent

Show notes In 2016, NASA's Swift caught a gamma-ray burst that came in two parts: a 1.7-second spike, four minutes of silence, then a 51-second burst from the same spot. A new Nature Astronomy paper finds that nearly every classification test labels the first part a merger and the second a collapsing star. It was published three days after Swift ended science operations. Also today: a black hole disc in MAXI J0637−430 that puffs up and shades itself at just a fifth of the Eddington limit; JWST finds methane in interstellar comet 3I/ATLAS with a deuterium ratio of 3.18%, the highest ever measured in methane anywhere in the solar system; and NASA's Psyche goes to near-continuous thrust and makes the first in-space measurement of Hall-thruster swirl torque. Quick hits: Hera's second braking burn, Dragonfly's first simulated Titan flight, and 20 years of STEREO. Skywatch for Sydney, Los Angeles, New York and London: the Hunter's Moon, Mars and Jupiter closing before dawn, Saturn in the evening and Mercury's last call.

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Episode link: https://play.headliner.app/episode/35929069?utm_source=youtube
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