Stories, updates, insights, and original analysis from The Planetary Society.
A timeline of one of the most memorable solar events in recent memory: the observations by six Sun-observing spacecraft of Comet Lovejoy making its perihelion passage.
An update on upcoming missions to the International Space Station (ISS).
Observations of the newly sighted Kreutz sungrazer comet C/2011 W3 (Lovejoy) from the ground and from SOHO (a joint NASA/ESA satellite) and STEREO (NASA's Solar Terrestrial Relations Observatory).
With a new rover, Curiosity, on its way to Mars, Jason Davis takes a look at what we knew - or thought we knew - about the planet back in 1935.
A few updates on the Space Launch System, NASA's next-generation deep exploration vehicle.
Checking in with SpaceX's launch abort system progress, Boeing's CST-100 drop tests, and a recent Space, Science and Technology Committee meeting on Capitol Hill.
The Chinese spacecraft Shenzhou 8 docks with space station Tiangong 1, on the same day a Progress resupply capsule arrives at the International Space Station.
The tale of NASA's Super Guppy aircraft, which ferried parts of America's space program to their launch pads.
Data from Earth observing satellites Aura and CALIPSO have shown record losses of seasonal ozone in the Arctic.
Breaking down the futuristic technologies for SpaceX's reusable Grasshopper spacecraft, as shown in a recent promotional video.
A Long March rocket carried China's first space station, Tiangong-1, into orbit September 29.
Meet the next big thing in NASA's mission to study planet Earth: NPP, the NPOESS Preparatory Project satellite.
After months of political wrangling, NASA has finally unveiled the design of the Space Launch System, America's next deep space transportation system.
On September 6, NASA released new high-resolution photos from the Lunar Reconnaissance Orbiter (LRO) showing the Apollo 12, 14 and 17 landing sites from vantage points as close as 21 kilometers.
The first post-shuttle resupply mission in ISS history got off to a rocky start, as a Russian Progress cargo spacecraft failed to reach orbit, crashing into south central Russia.
A team of international scientists has discovered an antiproton belt around the Earth, using data obtained from PAMELA, a particle identification instrument aboard a Russian Earth observation satellite.
An update on human spaceflight, including orbital propellant depots, suborbital test flights and an Orion crew capsule test aboard a Delta IV Heavy.
Although much of the publicity NASA receives focuses on planetary exploration, Earth observing satellites like Aqua keep tabs on our home planet's weather and climate.
Private spaceflight company SpaceX has secured tentative approval with NASA to combine its next test flight with an actual ISS docking.
At 5:57AM EDT (9:57 UTC) this morning, Atlantis gracefully rolled to a stop on runway 15 at the Kennedy Space Center Landing Facility, completing the 135th and final mission of the space shuttle program that started in 1981.