Strip the Cosmos
Saturn's tiny, frozen moon Enceladus could hold the secrets to extraterrestrial life.
Is There Life on Enceladus?
Titan, the largest moon of Saturn, could be the most alien world in our solar system.
Titan, A 'Strangely Earthlike' World
Scientists are studying Mars from every angle in preparation to send the first human astronauts to the Red Planet. Data from the Curiosity rover has proven invaluable.
Driving on the Surface of Mars
Mars is home to Olympus Mons, the largest volcano in the solar system, which covers an area the size of Arizona.
Inside Mars' Monster Volcanoes
The dinosaurs died off after a massive asteroid strike with a billion times more energy than the atomic bombs dropped on Hiroshima. A team at NASA studies the impact to learn more.
Recreating Asteroid Strike That Killed Dinosaurs
In February 2013, a stunning sight in the sky over Russia made international headlines. The light of an asteroid hurtling toward Earth was brighter than the sun.
60-Foot-Wide Asteroid Hurtles Toward Earth
Astronaut Mike Massimino calls solar wind, "the biggest obstacle we have for exploring our universe."
Solar Wind: A Silent Threat
More than 20 solar storms a day can occur on the surface of the sun. These energy surges can cause real problems down on Earth.
Why Solar Storms Are So Dangerous
Supermassive black holes aren't just spinning at the center of galaxies. They may actually be creating galaxies.
Supermassive Black Holes
Stripping away the Milky Way's stars, planets, rocks and dust reveals a massive black hole lurking just 26,000 light years from Earth.
Black Hole in the Milky Way