NASA releases new mosaic of Earthlings waving at Saturn
When the Cassini orbiter positioned itself to take a picture of the Earth, thousands of people heeded NASA's call to wave back
Planets galore! Big picture shows Saturn and more
Almost four months after NASA's Cassini orbiter turned around and took a picture of Saturn, the big picture is finally out — and it's a stunner.
30 years of shuttle flights: A salute in images
"Space Shuttle: A Photographic Journey, 1981-2011" pays tribute to history's most complicated machines and the people who flew them.
Astronomy Photographer of the Year 2013
Sample breathtaking images of space and the night sky from the Royal Observatory Greenwich’s 2013 competition.
Catch the supermoon
Supermoon: The biggest, brightest full moon of 2013.
The World at Night 2013
The winners of the 2013 "Earth and Sky" photo contest show off the beauties of the night sky and demonstrate the effects of light pollution.
Our fragile Earth
Images from outer space highlight the fragility — and the resilience — of our beautiful blue planet.
Antics and artistry of astronaut Chris Hadfield
Canadian spaceflier Chris Hadfield has posted incredible pictures of the world from space. He has also explained how to brush your teeth, shave and clip your nails while weightless.
Catch the coolest comets
Cast your eyes on pictures featuring PanSTARRS, Hale-Bopp and other crowd-pleasing comets.
Meteor streaks over Siberia
Click through scenes from Russia's Chelyabinsk region, where a huge meteor fireball set off alarms, injured hundreds of people and caused a factory roof to collapse.
Looking back: The Columbia shuttle tragedy
Retrace the final, tragic flight of the space shuttle Columbia, from its launch to its catastrophic end on Feb. 1, 2003.
Curiosity's space odyssey to Mars
Trace the Curiosity rover's journey to Mars and see the pictures that the six-wheeled robot has sent back from the Red Planet.
Apollo 17: The last moonshot
Click through historic photos from humanity's last trip to the moon, the Apollo 17 mission in 1972.
Planetfall: Snapshots from the solar system
See some of our solar system's greatest sights, as captured in "Planetfall: New Solar System Visions," a large-format book by Michael Benson.
Endeavour's final trek
A look back at the space shuttle's farewell tour as it traveled from Florida to its new home in California
See this year's top shots in astronomy
Science editor Alan Boyle's blog: Feast your eyes on the Whirlpool Galaxy, an icy starscape and other celestial wonders from the 2012 Astronomy Photographer of the Year competition.
Neil Armstrong: 1930-2012
See images from the career of astronaut and American hero Neil Armstrong.
Neil Armstrong's ashes buried at sea
Science editor Alan Boyle's blog: The cremated remains of Apollo 11 astronaut Neil Armstrong, the first man to set foot on the moon, were committed to the Atlantic Ocean.
Saturn changes color with the seasons
Science editor Alan Boyle's blog: Saturn's shades of blue and butterscotch are changing along with the planet's seasons, as illustrated by true-color photos from the Cassini orbiter.
John Glenn through the years
From his accomplishments as a Marine Corps pilot, through his tenure with NASA and his foray into politics, take a look at the life of John Glenn, 50 years after the historic 1962 flight that made him the first American in space.
Summer delights from outer space
Click through pictures of auroral displays, interplanetary views and other space highlights from July 2012.
From Earth to the heavens
Feast your eyes on the outer-space missions and marvels that made news in June 2012.
A month of cosmic marvels
See out-of-this-world views of a solar eclipse, the high points of a milestone space mission and other stunning cosmic images from May 2012.
Month in Space: A blaze of glory
Click through a solar eruption, the final odyssey of the shuttle Discovery and other outer-space highlights from April 2012.
Get a look at zero-gravity antics, rocket launches, planetary views and other spaced-out pictures from March 2012.
Final countdown for Atlantis
Click through highlights from the space shuttle Atlantis' quarter-century of spaceflight.
Shuttle Endeavour, this is your life
Click through highlights from the space shuttle Endeavour's 19 years of service.
Discovery's last launch
Click through highlights from the shuttle Discovery's final space mission and other cosmic imagery from February 2011.
Marvels from Mercury
NASA's Messenger mission delivers the first pictures ever taken by a spacecraft orbiting the solar system's innermost planet.
See the world from the space station
Click through some of the more than 450,000 photographs taken by astronauts on the International Space Station.
A rare spectacle on Saturn
Click through scenes of Saturn and its rings, captured by the Cassini orbiter during the planet's first equinox in nearly 15 years.
50 years of moon shots
Up-close exploration of the moon, Earth's only natural satellite, began in 1959 and hasn't stopped. Take a look at scenes from 50 years of moon exploration.