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Support The Automated Daily directly: 15 free episodes a day, 5 editions, 3 languages, about $4 a day to produce. A coffee keeps it going: theautomateddaily.com/support Please support this podcast by checking out our sponsors: - Discover the Future of AI Audio with ElevenLabs - https://try.elevenlabs.io/tad - Lindy is your ultimate AI assistant that proactively manages your inbox - https://try.lindy.ai/tad - SurveyMonkey, Using AI to surface insights faster and reduce manual analysis time - https://get.surveymonkey.com/tad Today's topics: Bennu molecule reveals hidden history - Amino acid molecules from asteroid Bennu and the Murchison meteorite look similar overall but carry sharply different internal isotope fingerprints. The finding suggests that prebiotic chemistry developed in varied environments across the early solar system. [137] Euclid maps the dark universe - ESA’s Euclid telescope released its first major data collection, covering more than 900 million galaxies and thousands of gravitational-lens candidates. The survey will support an enormous three-dimensional map aimed at studying dark matter, dark energy and cosmic evolution. [32] Astronomers explore black hole forecasts - Researchers found possible X-ray warning signs that appeared before jet eruptions in four stellar-mass black hole systems. The proposed forecast could help observatories prepare for rare jet events, although it still needs real-time validation. [120] Fermi charts overlooked gamma rays - A new catalog built from 14 years of Fermi observations identifies roughly 450 sources in a difficult and comparatively unexplored band of gamma-ray light. About 15 percent remain unconnected to known objects, creating targets for future high-energy astronomy. [68] Hera inspects humanity’s asteroid impact - ESA’s Hera spacecraft has begun close inspections of Dimorphos, the small asteroid moon struck by NASA’s DART probe in 2022. Its observations will show how the collision reshaped the body and improve future planetary-defense planning. [62] Two major rockets face tests - Starship is preparing for an ambitious test that aims to recover both major stages, while Vulcan Centaur is scheduled to return after nine months with Amazon Leo satellites. Both flights could influence the pace, competition and reliability of future launch services. [77][75] Episode Transcript Bennu molecule reveals hidden history We begin with asteroid Bennu and a chemical surprise hidden inside a familiar molecule. Scientists compared beta-alanine from the pristine material returned by NASA’s OSIRIS-REx mission with beta-alanine from the Murchison meteorite. When they looked at the average carbon isotope signature, the samples appeared nearly identical. But a closer examination of the individual atoms inside each molecule told a very different story. Their isotope patterns varied sharply, including an exceptionally strong anomaly in the Bennu material. The most likely explanation is that the molecules followed broadly similar chemical routes but formed from different raw materials or under different conditions in the early solar system. This is not evidence of life. It is evidence that prebiotic chemistry was widespread and diverse before planets reached their present form. It also shows why returned samples matter: scientists can examine them with a level of precision that remote spacecraft observations cannot match. Euclid maps the dark universe From one small asteroid sample, we move to almost a billion galaxies. The European Space Agency’s Euclid telescope has released its first major collection of survey data, assembled from more than a year of observations. The release captures light from over a billion objects, including more than 900 million galaxies, and covers a patch of sky equivalent to thousands of full moons. Euclid is building what is expected to become the largest detailed three-dimensional map of the universe. Astronomers will use the positions and shapes of galaxies to...
