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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 9 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