Only 843 pounds of moon rocks exist on Earth, according to NASA.
Now, 30 years after it went missing, one of those precious rocks has been found among memorabilia belonging to former President Bill Clinton.
Miami (CNN) - A satellite whose orbit is degrading will fall back to Earth Friday afternoon, but only some of its pieces will survive the fiery ride through the atmosphere, NASA scientists said Thursday.
The pieces are not expected to come down over North America, scientists said, but where they'll likely land is something NASA expects to narrow down over the next 24 hours.
With the internet, it doesn’t take a Ph.D. in astrophysics to help find new worlds outside our solar system.
For the first time, new planet candidates have been identified with the help of the public’s analysis of NASA data. Anyone can join this effort, called Planet Hunters, for free and start helping real astronomers weed through data that might signal a never-before-seen planet.
Light Years strives to tell the stories of science research, discovery, space and education. This is your go-to place on CNN.com for today’s stories, but also for a scientific perspective on the news and everyday wonders. Come indulge your curiosity in all things space and science related, brought to you by the entire CNN family.
July 19thAtlas V launch of US DOD MUOS-2 satellite, notable for large "551" config of Atlas
Aug 3rdJapanese HTV-4 flight to ISS on cargo supply mission
Aug 14thSpaceX launch of Canadian satellite in the first launch from their new Vandenberg facility, and first launch of upgraded Falcon 9 v1.1 launch vehicle
Aug 28thDelta IV Heavy launch of NROL-65 spy satellite
SeptemberSoyuz TMA-08M flight returning Expedition 36 crew from ISS to Earth (Kazakhstan)
Sept 12thOrbital Sciences maiden flight of Cygnus cargo vehicle on Antares rocket to ISS
Sept 25thSoyuz TMA-10M flight launching Expedition 38 crew to ISS
Dec 9thSpaceX Dragon launch by Falcon 9 v1.1 on CRS-3 cargo supply mission to ISS
recurringfirst powered test flights of Scaled Composites' SpaceShipTwo commercial vehicle, to be used by Virgin Galactic for sub-orbital tourism