Could scientists be getting closer to discovering alien life on a planet 124 light-years away? Explore the mysterious exoplanet K2-18 b, where researchers are investigating atmospheric chemicals that ...

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

It’s a dizzyingly busy time for scientists searching for life on distant planets. To date, astronomers have cataloged more ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known exoplanets that may have the right conditions to support life. Using new ...

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 ...

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 ...

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 ...

Scientists have built a computer model of Earth without life to help determine whether ...

On planet Earth, our 'secondary atmosphere' has been with us for billions of years and its chemical balance reflects the ...