A newly observed interstellar object, 3I/ATLAS, contains iron-free nickel alloys — a composition former NASA surgeon Dr. Gregory Rogers calls 'impossible' for a natural body.

NASA and ESA say 3I/ATLAS poses no threat to Earth. We explain its nickel-heavy readings, IAWN’s training drill, and why the Harvard alien claim lacks proof.

New images captured by NASA, which have not yet been released yet, show the changing tail of 3I/Atlas. The comet is currently hidden behind the sun and will not be seen by Earth-based telescopes. NBC News' Gadi Schwartz talks to Harvard Professor Avi Loeb about the latest developments.

Famed scientist Avi Loeb is investigating the newly found quasi-moon 2025 PN7, questioning if it is an artificial alien probe.