By capturing the same thing from very different perspectives, a NASA astronaut and an intrepid photographer create a whole ...

"We have found a habitable environment," said John Grotzinger, project scientist for the Curiosity mission. "The water that was here was so benign and supportive of life that if a ...

How can we figure out if the planet is actually there? And will it even be bright enough to see? Here are some answers to these and other pressing questions. Others aren’t quite so sure. “I’m very ...

LOS ANGELES -- Commit first, then figure it out. That was one of the mantras of conservationist Doug Tompkins and his wife Kris. Their story, including the highs and lows of their biggest project, is ...

Think you can spot Pluto? On July 25, the famously elusive dwarf planet reaches opposition—its best and brightest moment of the year. That makes now the ideal time to try to catch a glimpse of it from ...