In a memorable image from the 1977 film "Star Wars," the young hero Luke Skywalker gazes at two suns setting above the ...

Astronomers have detected possible chemical signs of life on a faraway planet. But they caution much more work is needed to ...

Professor Vickers added: 'Hundreds of millions is pretty safe estimate and not overblown.' Planet K2-18b is in the same ...

Scientists have detected potential evidence of life on K2-18b, a distant exoplanet. A Cambridge team using NASA’s James Webb ...

About half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say ...

Scientists have discovered evidence of large quantities of biosignature chemicals — only known to be made by life on Earth — on an exoplanet more than 100 light-years away. It could be the most ...