University of Washington researchers have published a 5-billion-year computational simulation of Earth without life, ...

What would our atmosphere look like if there were no life on Earth?

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium gas escaping from the atmosphere of LHS 1140b propelled this exoplanet from ...

Two major alien-life announcements in 2025 generated enormous excitement, but most astrobiologists remained unconvinced. Only 6.6% of surveyed experts thought possible biological molecules on K2-18b ...

Astronomers have catalogued more than 6,000 planets beyond our solar system. None has settled the question that matters: is ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of a watery exoplanet with a red dwarf sun overhead. A new study suggests that the exoplanet GJ 3378b, which ...

The universe is vast and teeming with stars – but if intelligent life exists, it may not be able to visit Earth. By Kai James / The Conversation Published May 27, 2026 8:00 AM EDT This article was ...

On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be unexplained flying objects. These file dumps were the culmination of a ...