Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Apr 25, 2025, 08:11pm EDT Apr 27, 2025, 05:35pm EDT This ...
On Wednesday, news broke that researchers had found the most compelling evidence yet of a “biosignature”—a chemical present at levels that are only consistent with life—on a distant exoplanet. It didn ...
Recent controversies bode ill for the effort to detect life on other planets by analyzing the gases in their atmospheres. In 2020, scientists detected a gas called phosphine in the atmosphere of an ...
Last year, we reported on the discovery of an intriguing arrow-shaped rock on Mars by NASA’s Perseverance rover. The rock contained chemical signatures and structures that could have been formed by ...
A rock sample collected by NASA’s Perseverance Mars rover may contain evidence of ancient microbial life, preserved for billions of years on the Red Planet. The potential “biosignature” is not direct ...