Millions of people around the world will pause, at least for a moment, to mark Earth Day. The annual event is Wednesday.

In a year of grim climate and environment news, we’ve compiled several hopeful signs about our planet’s future.

"This experiment's never been run before on another world," said Amy Williams, an astrobiologist working on the Curiosity ...

The Curiosity rover landed on Mars way too late to observe barren Gale Crater when it was potentially lush Gale Lake. Three ...

NASA’s Curiosity Mars rover has spent more than 13 years exploring the 3.5-billion-year-old Gale crater, slowly climbing a ...

The Earth slips behind the moon in an iPhone video taken by Reid Wiseman during NASA’s Artemis II mission, a sequel to the ...

Earth responded to its most severe past warming event by evolving a new and bizarre type of photosynthesis that allowed a ...

New research suggests that the origins of life may be tied not only to deep-sea hydrothermal vents but also to environments ...

The space rock is expected to make its closest approach at around 848,000 miles from the Earth, according to NASA.

Now Gerardi is teaming up with Babylist to cover two fully funded IVF cycles for “families who are fighting for their dreams ...

The Dark Energy Spectroscopic Instrument (DESI) has completed its originally planned five-year mission and mapped more than ...

Reentry is one of the most dangerous aspects of any spaceflight. And Artemis II is going into this part of the journey with a ...