The Obama administration offers some hope but no change on the matter of extraterrestrial contact.
An asteroid will whiz by Earth at 29,000 miles per hour. That could cause a big impact, but do we really have anything to worry about?
That low-hanging moon looks like you can reach out and touch it, but it is actually further away than when it is at the sky's zenith, where it looks smaller!
A Moment of Science looks at the many different moons in our solar system.
So, if the planet doesn't orbit a sun, can it still be called a planet?
Everyone knows what gold is, but the commodity's stellar origins might come as a bit of a surprise.
If you could see an alien planet from Earth, you wouldn't necessarily need to look for cities. You could just check for oxygen in the atmosphere.
Kepler’s Telescope has detected over 1200 possible planets. But this discovery is unique. Scientists found two planets in the same orbit in a system!
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Where did our planets come from?
Nowadays everybody knows there are nine planets in our solar system, but that information was hard won.