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View larger. | This is an artist’s concept of a super-Earth with a deep magma ocean generating a magnetic field. Could powerful magnetic fields on super-Earths help these worlds be

View larger. | This is an artist’s concept of Kepler-186f, an Earth-sized exoplanet about 500 light-years from Earth. It was the 1st Earth-sized exoplanet found in the habitable zone of

Artist’s illustration of K2-18 b, an exoplanet that could be habitable. But what does habitable mean? It doesn’t mean we’re planning to colonize it, or that alien life exists there.

View at EarthSky Community Photos. | Garth Battista captured this scene of fireflies in the Catskill Mountains on June 23, 2025. Garth wrote: “Mountaintop fireflies! One firefly’s path seems to

A screenshot of the SETI@home user interface on a desktop computer in 2009. The software ran on millions of home computers worldwide, analyzing radio data from space in search of

View larger. | Jupiter’s ocean moon Europa is one of the most promising places to search for alien life in our solar system. Now, a new study suggests that Europa’s

NASA’s Curiosity rover captured this image showing Earth as a tiny dot of light seen from the surface of Mars. Our planet Earth shines more brightly than any star in

View larger. | Artist’s concept of exoplanet K2-18b. How do astronomers plan to detect the signatures of alien life in the atmospheres of distant planets? Find out below! Image via

The inset image shows dead star RXJ0528+2838 creating a shock wave as it moves through space. A strong outflow expelled from a star is usually the cause of such a

Artist’s concept of the ancient lake in Gale crater on Mars. A new study says the former lake – and other icy lakes on Mars – could have remained liquid