Learn how researchers may have discovered an exomoon about 635 light-years away orbiting gas giant exoplanet WASP-4b. Credits: NASA/JPL-Caltech ...

NASA discovered five exoplanets orbiting stars in under 24 hours, challenging planetary models and providing insights into ...

Astronomers used a 3D global computer model to compare the climates of exoplanets in different stellar and orbital configurations. They found that a planet orbiting a white dwarf star would offer a ...

The exoplanet, discovered in 2009, remained elusive due to dense clouds. Now, scientists have peered through with the James ...

The European Southern Observatory's Very Large Telescope (VLT) imaged both of the planets directly, and PDS 70b has the ...

NASA said the system is thought to be moving at least 1.2 million miler per hour, nearly twice as fast as our solar system.

New research suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for photosynthesis.