Close New Earth-Size World Discovered, Year Lasts Under 10 DaysAstronomers have discovered a close new world about the size of Earth, where a year lasts just under 10 days.
"Potentially Habitable" Alien Planets DiscoveredThree potentially habitable Earth-size planets have been discovered orbiting a dim, cold nearby star that is barely larger than Jupiter, researchers say.
Newly Discovered Planet May Harbor LifeA recently discovery planet in a in a solar system that is 1,400 light years from our own may harbor life.
Pluto Just 4 Weeks, 20 Million Miles Away For SpacecraftAfter traveling 3 billion miles, over the course of nine years, NASA’s New Horizons spacecraft is at Pluto’s doorstep.
Three Space Station Astronauts Return To EarthAfter almost six months in outer space, three space station astronauts have made it back home to Earth safely.
One Way Ticket: Mission To MarsOn July 21, 1969 the Apollo 11 space flight took the first humans to the moon, with Neil Armstrong being the first to step on the lunar surface.