Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...

If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 ...

On a hot February morning, Galápagos National Park rangers released 50 giant tortoises back to Floreana Island—marking the beginning of a historic comeback.

China's reusable Shenlong space plane launched on its fourth space mission earlier this month. What is it doing in Earth ...

Bring up aliens and a lot of people will scoff. But not everyone is laughing. Around the turn of the century, 3.8 million people banded together in a real-time search for aliens -- with screensavers.

Get a look at the comics that are coming to shelves this week. As always, check with your local shop as to the availability of products.