An Atlas 5 rocket successfully launched a National Reconnaissance Office spy satellite on Monday, just days after the Air Force's secret X-37B space plane returned from its secret 15-month mission in orbit.
NASA discovered a Mercury crater that resembles Mickey Mouse's head.
Launched in 1977, Voyager 1 is now poised to become the first craft to enter interstellar space.
A trio of Chinese astronauts, including the country's first woman in space, successfully docked with an orbiting test module.
The crew of China's Shenzhou 9 space docking mission to its prototype space station includes Liu Yang, the country's first woman to fly in space.
Some 1,650 feet wide, asteroid 2012 LZ1 is expected to pass within 14 lunar distances of our planet, close enough to be caught on camera.
The otherwise dry tropics of Saturn's largest moon, Titan, hold a massive lake of methane that is thought to be fed by underground channels.
NASA's $165 million Nuclear Spectroscopic Telescope Array (NuSTAR) mission will scan the skies for X-ray emissions from black holes.
Teflon from the drill on NASA's Curiosity rover could contaminate Martian soil, say scientists, creating misleading evidence of an ancient alien civilization that had developed nonstick cookware.
Because NASA's NEEMO missions put participants in a hostile, alien environment, they're good analogs for expeditions to asteroids, planets, moons or other space destinations, officials said.