When scientists discovered the first planet orbiting another star in 1995, few outside astronomy circles noticed. That planet ...

A groundbreaking new study, published in The Astrophysical Journal Lettersand conducted by researchers at Penn State University and NASA’s Jet Propulsion Laboratory (JPL), reveals that Earth may be ...

Three years into its mission, the James Webb Space Telescope has advanced the search for alien life more than any machine ...

Related: 10 exoplanets that could host alien life Hycean worlds are similar in size to rocky " super-Earths " and gassy "mini-Neptunes," two of the most common types of exoplanet in the galaxy.

A challenge facing alien hunters is discerning natural from artificial signals, but new research suggests we're better equipped than we thought.

A better understanding of exoplanet orbits is helping SETI astronomers reduce their computational costs and conduct their search for intelligent aliens faster.

In her recent book, Alien Earths: The New Science of Planet Hunting in the Cosmos, Lisa Kaltenegger discusses exoplanets, aliens, and how science mixes caution with optimism.

The planet TRAPPIST-1e lies in its star’s Goldilocks zone, where water remains liquid – and an analysis suggests it might have a nitrogen-rich atmosphere like Earth’s ...

Modeling ocean currents and ‘upwelling’ on alien worlds may hold the key to discovering life elsewhere in the Milky Way–and Earth might not be ‘optimally habitable’–according to a new ...

You've been selected to be the lead scientist for the NOVA Space Center’s Galactic Resettlement team, with the job of finding suitable exoplanets for displaced aliens desperately seeking new ...

The exoplanets most likely to house life in other star systems might not look exactly like our own home. Slow-rotating planets with high surface pressure, salty oceans and, critically, upwelling ...

Artist's impression of the exoplanet around Alpha Centauri B. European Southern Observatory on Flickr With powerful telescopes on earth, scientists can sniff out alien life across the galaxy by ...