Add Yahoo as a preferred source to see more of our stories on Google. An illustration shows what exoplanet K2-18b might look like based on data from NASA's James Webb Space Telescope. K2-18b is 8.6 ...

Dimethyl sulfide is cool—and a potential biosignature—but scientists are urging caution before we declare a plankton party some 120 light-years away. Reading time 5 minutes Last week, researchers ...

This figure shows ozone detection in Venus' atmosphere between 2006 and 2014 by the ESA's Venus Express. Credit: Evdokimova et al. 2011, JGR Planets Just because we can find ozone in the atmosphere of ...

February 11, 2025, Mountain View, CA – The SETI Institute awarded the first Frank Drake Postdoctoral Fellowship to Dr. Anastasia Yanchilina. Yanchilina will focus on distinguishing biosignatures from ...

Astronomers have been poring over last week's claim of the detection of life-associated gases in the atmosphere of a distant planet named K2-18b — "the strongest evidence yet that life may exist on a ...

A detection of phosphine in the atmosphere of a brown dwarf 54 light-years from Earth deepens the mystery of phosphorus chemistry throughout the Milky Way. An ancient object more than 10 billion years ...

The finding suggests phosphine—a potential biosignature—shouldn’t be viewed as evidence of alien life until natural, non-biological sources are ruled out. Reading time 5 minutes For scientists, the ...

A team of astronomers announced this week that they’ve detected a possible sign of life on an exoplanet 124 light years away using the James Webb Space Telescope. Even more enticingly, the exoplanet, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A team of ...