A newly discovered green meteorite, dubbed NWA 7325, may have arrived from the planet closest to the sun, according to scientists.
Over the years, the spacefaring nations of Earth have sent dozens of probes and rovers to explore Mars.
Scientists are moving forward with plans to intentionally smash a spacecraft into a huge nearby asteroid in 2022 to see inside the space rock.
Has Voyager 1 left our solar system?
A new examination of what is essentially the universe's birth certificate allows astronomers to tweak the age, girth and speed of the cosmos
More than 35 years after it launched on a mission to explore the cosmos, NASA's unmanned Voyager spacecraft appears to have left the solar system.
The U.S. Air Force launched the second satellite in its next-generation missile warning constellation Tuesday from Cape Canaveral Air Force Station, Fla.
Congress got the word from NASA on Tuesday about its options for dealing with the threats posed by asteroids and comets
A catastrophic meteor strike that would trigger the kind of destruction blamed for wiping out dinosaurs millions of years ago is unlikely
An analysis of a rock sample collected by NASA's Curiosity rover shows ancient Mars could have supported living microbes.
The space agency will hold a press conference to reveal the results of the analysis of the grey-green dust it drilled from a rock on 8 February.
'Something unexpected' is happening on the Sun, Nasa has warned.
An asteroid the size of a city block will pass by Earth this weekend, but have no fear: There's no danger of it hitting our planet.
Mars may have a really bad day next year on October 19th.
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