On Feb. 15, 2013, a 150-foot asteroid will fly past Earth at an altitude of 17,200 miles - closer than our own communications satellites.
See how NASA's Landsat satellite constellation has revolutionized our understanding of Earth over 40 yearsa in this SPACE.com infographic.
Space is a dangerous place for humans. Learn about the perils of human spaceflight in this infographic.
The nuclear-powered mobile science laboratory Curiosity will roll across the surface of Mars for years, searching for the conditions that may have once made Mars an abode of life.
The mystery of the amazingly hot solar atmosphere may have been solved. Giant twisters bigger than the United States may move heat up from the surface.
Two new companies, Planetary Resources and Deep Space Industries, plan to mine asteroids for precious metals and resources. See how it could work in this SPACE.com infographic.
Black holes are strange regions where gravity is strong enough to bend light, warp space and distort time.
Details of the Orion four-person capsule that could carry crews to the Moon or an asteroid, beginning in 2021.
Find out the facts about Titan's heavy atmosphere, lakes of hydrocarbons and the possibility of life.
Scientists say an enormous cluster of quasars in the distant universe is larger than should be possible.
Practically all sun-like stars have planets, and one in six has a planet the size of Earth, scientists say.
See how solar flares, sun storms and huge eruptions from the sun work in this SPACE.com infographic.
Being developed for missions in 2015 and beyond, the Z-1 could be used for exploring the moon and Mars.
Pluto was demoted to dwarf planet status in 2006, joining Eris, Haumea, Makemake and Ceres. All the dwarf planets are tinier than Earth's moon.