NASA scientists conducting surveys of arctic ice sheets in Greenland got an unprecedented view of an abandoned "city under the ice" built by the U.S. military during the Cold War. Data from NASA ...

Like nuclear fusion, the idea of space-based solar power has always seemed like ... At best, such a system of very large satellites in geostationary space might come online by the middle of ...

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

Free learning activities and videos about the solar system ... the solar system Free learning activities and videos about the solar system Take a Virtual Field Trip to outer space Take a Virtual ...

Taranpreet:So how old is our solar system? Maddie Moate:That's a great question. Let's ask an expert. Dr Becky:Hi, I'm Dr Becky and I am a space expert. Now, the solar systemand all the planets in ...

With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system, and it's the only ... scientists are increasingly monitoring Earth from space. NASA alone has dozens of ...