Biosignatures

How did JAXA’s Ryugu samples end up with DNA’s five letters?

New analyses of Hayabusa2 material show asteroid samples contain genetic building blocks — all five canonical nucleobases — but key gaps remain before we can say space made life. Mar 28, 2026

Science

New Clues Suggest Past Life on Mars

Two fresh lines of analysis — a reexamination of Curiosity data and new chemistry from Perseverance — are sharpening the case that Mars once hosted habitable, possibly life-friend… Mar 02, 2026

Science

Cancer’s invisibility switch uncovered

An international team has identified a molecular “invisibility” switch used by aggressive cancers to silence innate immune alarms; blocking that RNA-binding activity in MYC unmask… Feb 23, 2026

Genetics

Vikings Revisited: Did Mars Show Life in 1976?

This week scientists revisit Viking data from 1976 and argue that positive signals in early life-detection experiments may have been wiped out by the very tests designed to find t… Feb 17, 2026

Space

Roman Telescope Assembled — Next Step in Alien Hunt

NASA has finished assembling the Nancy Grace Roman Space Telescope at Goddard, advancing hardware and techniques that could reshape the hunt for habitable worlds and biosignatures… Dec 17, 2025

Science

AI Could Redefine the Search for Alien Life

Researchers have combined high-resolution chemical analysis with machine learning to detect faint, billion‑year‑old biosignatures — a technique that may be adapted for rovers and … Nov 19, 2025

Space

James Webb Detects Complex Organic Molecules in Ices Beyond the Milky Way

Observations with JWST’s MIRI instrument reveal multiple complex organic molecules embedded in ice around a protostar in the Large Magellanic Cloud, marking the first solid-state … Nov 15, 2025

Articles about Biosignatures

How did JAXA’s Ryugu samples end up with DNA’s five letters?

New Clues Suggest Past Life on Mars

Cancer’s invisibility switch uncovered

Vikings Revisited: Did Mars Show Life in 1976?

Roman Telescope Assembled — Next Step in Alien Hunt

AI Could Redefine the Search for Alien Life

James Webb Detects Complex Organic Molecules in Ices Beyond the Milky Way