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3I/ATLAS Explained, Forensic Fingerprints & Alzheimer’s Breakthrough (EP. 18)

3I/ATLAS Explained, Forensic Fingerprints & Alzheimer’s Breakthrough (EP. 18)

From First Principles vor 11 Monaten

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1:27:30

Hosted by Lester Nare and Krishna Choudhary, this episode spans
astrophysics, forensic chemistry, and neuroimmunology. We begin
with a deep dive into 3I/ATLAS, only the third confirmed
interstellar object to ever pass through our solar system — larger
and stranger than ‘Oumuamua and Borisov, with new imagery released
as NASA reopened operations. Then we break down a true-crime
forensic breakthrough from Maynooth University that reveals how to
recover fingerprints from fired bullet casings — a technique that
could radically accelerate criminal investigations. And we close
with a Max Planck Institute discovery identifying a regulatory
microglial state in the brain that may finally clarify why
Alzheimer’s develops — and how immune dysfunction, not just
plaques, drives the disease. Summary The third interstellar visitor
— 3I/ATLAS joins ‘Oumuamua and Borisov as only the third object
ever observed entering the solar system from interstellar space,
with new NASA imagery revealing structure, trajectory, and
compositional clues. A forensic chemistry breakthrough —
researchers at Maynooth University develop a technique to retrieve
latent fingerprints from fired shell casings, combining heat-stable
organic residues with spectroscopic imaging. A new model of
Alzheimer’s — Max Planck Institute scientists uncover a microglial
“regulatory” state (a T-reg–like analogue) activated through
CD28-dependent pathways, reshaping how the field thinks about
plaques, neuroinflammation, and therapeutic targets. Show Notes
3I/ATLAS — Interstellar Object Updates (NASA / JPL) Forensic
Chemistry: Fingerprints on Fired Casings (Maynooth University)
Alzheimer’s Microglia Study — Max Planck Institute / Univ. of
Cologne