Death Valley has many mysteries, including one of nature's strangest phenomena: rocks that move on their own.
Have you ever wondered what the highest mountain on earth was? Well, it is Everest. But, what about mountains on other planets?
Similarities between Mars and Earth are plentiful...does that mean Mars has life as well?
What is our earth's history? New research suggests that life on Earth has existed without interruption for longer than we thought.
Is there life on Mars? Maybe not. But there sure is gas. "Methane on Mars" on this Moment of Science.
Of course, most of the technology on Star Trek doesn't exist for real. But at least one cool bit of Star Trek science has been made real.
You want to build a spaceship that can travel from Earth to the newly established colony on Mars, but there's no way a human crew can survive the trip.
It was a great moment in the history of NASA, especially since people had been working so long at trying to get a probe to Mars
The sun may be far away, but its solar flares still present a deadly risk for astronauts going to the moon.
What is the difference between an asteroid and a comet?