Scientists have spotted a spectacular galaxy collision lurking behind the Milky Way. This is the closest such system ever found, and may tell researchers a bit more about the interactions near our galaxy.
NASA's Mars Reconnaissance Orbiter (MRO) is celebrating its tenth birthday today. A total of 10 years after launch, the MRO is continuing to reveal new insights into the Red Planet's diversity and activity.
Could aliens be trying to contact Earth? Researchers have found bursts of radio waves flashing across the sky that seem to follow a mathematical pattern.
Scientists have discovered a Jupiter-like planet within a young solar system that may actually tell researchers a bit more about how planets formed around our own sun.
Imagine living on a colony on Mars. Now, imagine if you could do that right now--on Earth. That's exactly what several volunteers did during a mock Mars space mission, located in a Mars-like habitat in Hawaii.
The Rosetta spacecraft is making its closest approach yet to the sun, riding along on the comet 67P/Churyumov-Gerasimenko.
Pluto may actually be geologically active. Data from NASA New Horizons mission hints that the dwarf planet may be far more "alive" than previously thought.
Solar storms can impact our planet in big ways. Now, researchers have created new tools for predicting the arrival and impact of solar storms.
NASA's Chandra X-ray Observatory has spotted something startling. It's identified the smallest supermassive black hole ever detect in the center of a galaxy.
A comet is making quite the show before reaching its closest point to the sun. The Comet 67P/Churyumov-Gerasimenko has blasted out a spectacular jet, which has been captured by the Rosetta spacecraft.
Have you ever wanted to see what Earth looks like from space? You, too, can be an astronaut--with the power of virtual reality.
The internet is buzzing about a strange impact captured by NASA's Curiosity rover on Mars. It appears as if the rover has spotted what appears to be a ghostly woman on the Red Planet. In this case, though, the image may be nothing more than an illusion.