23 September 2014, 10:26 PM ET
A rare patch of wispy white clouds streak across the sky over ESO’s La Silla Observatory in this space wallpaper, taken on June 11, 2012 by astronomer Alan Fitzsimmons.
23 September 2014, 10:15 PM ET
India's Mars Orbiter Mission (MOM) probe was captured by the Red Planet's gravity around 10:11 p.m. EDT Tuesday, making India just the fourth entity — after the United States, the Soviet Union and Europe — to place a spacecraft in Mars orbit.
23 September 2014, 10:01 PM ET
The Rosetta spacecraft's NAVCAM captured four photos that ESA stitched together to create a close-up mosaic of comet 67P/Churyumov-Gerasimenko.
23 September 2014, 06:23 PM ET
Fans of the renowned American author Ray Bradbury take note: The writer's personal collection of sci-fi memorabilia and art is now up for sale online.
23 September 2014, 06:00 PM ET
NASA announced a new contest called the Mars Balance Mass Challenge, inviting the public to submit design ideas for dual-purpose spacecraft weight balances for a future Mars mission.
23 September 2014, 02:29 PM ET
Supposed evidence of gravitational waves from the dawn of time may actually be the signature of dust and gas in our own Milky Way galaxy, a new study reports.
23 September 2014, 01:16 PM ET
The private space company's cargo spacecraft delivered supplies, a 3-D printer and more to the International Space Station on September 23rd, 2014. Full Story: http://goo.gl/6A5wcu
23 September 2014, 10:49 AM ET
NASA's New Horizons spacecraft may still be 10 months from its historic flyby with dwarf planet Pluto, but it is making good use of its interplanetary cruise to get familiar with its flyby target by imaging Pluto's outermost moon Hydra
23 September 2014, 10:40 AM ET
The Indian Space Research Organisation's (ISRO) orbiter, named Mangalyaan, will arrive at the Red Planet at 10:11 p.m. EDT on Sept. 23, 2014. Instruments aboard the spacecraft will study the Martian surface, composition and atmosphere.
23 September 2014, 09:29 AM ET
The Japan Aerospace Exploration Agency's GCOM-W1 satellite has delivered data on sea ice from March 21st, 2014 to September 17th, 2014. NASA Goddard created this visualization from the data set.
23 September 2014, 07:30 AM ET
The image captures the Saturn moons Tethys, Hyperion and Prometheus,, along with the gas giant's iconic rings. Cassini took the picture on July 14, 2014, when it was about 1.2 million miles from Tethys, NASA officials saiD.
23 September 2014, 07:10 AM ET
A private Dragon cargo ship built by SpaceX arrived at the International Space Station this morning (Sept. 23) to deliver more than 5,000 lbs. of astronaut supplies and experiments for NASA.
23 September 2014, 07:00 AM ET
SpaceX officially broke ground today (Sept. 22) on the facility, which will be located near Boca Chica Beach, at the far southern tip of the Lone Star State. The spaceport should be operational by 2016.
23 September 2014, 07:00 AM ET
See images of the ringed planet from NASA's Cassini spacecraft in orbit around Saturn.
22 September 2014, 08:23 PM ET
The 2014 Astrophysics Kavli Prize Laureates tell the story behind their theory of cosmic inflation, and contemplate how it has changed our view of the universe.
22 September 2014, 04:25 PM ET
NASA's Dawn spacecraft has resumed normal operations after a high-energy particle event forced the mission to enter safe mode, knocking its ion drive offline.
22 September 2014, 03:43 PM ET
Audience members voted to restore Pluto's planethood during an event held last week organized by the Harvard-Smithsonian Center for Astrophysics.
22 September 2014, 03:00 PM ET
A new European prototype telescope inspired by an insect's eye could help protect Earth from dangerous asteroids when it is expected to come online next year.
22 September 2014, 02:01 PM ET
A probe flying through deep space has been beaming back amazing photos and information about its target comet since arriving at the cosmic body in August.
22 September 2014, 12:43 PM ET
Since it was awoken from deep space hibernation, the ESA mission has been collecting scientific data on Comet 67P/Churyumov-Gerasimenko. It has imaged dust streams emanating from the surface and captured grains with an on-board instrument.
22 September 2014, 11:25 AM ET
A solar flare is a light-speed traveling burst of x-rays and energy, while a coronal mass ejection (CME) is a giant cloud of particles emitted from the Sun. Both can affect the Earth in different ways and sometimes they happen together.
22 September 2014, 11:04 AM ET
During the atmospheric entry and landing phases of the Curiosity mission, hundreds of kilograms of mass was ejected. NASA is looking to change that 'dead weight' into scientific gain for future missions.
22 September 2014, 11:00 AM ET
The Mars Orbiter Mission (MOM) should finish its 24-minute orbit-insertion burn at 10:11 p.m. EDT Tuesday. Confirmation of the success (or failure) of this crucial maneuver should come to ground control minutes later, mission officials have said.
22 September 2014, 07:40 AM ET
See how the International Space Elevator Consortium is working to advance space-elevator tech and science to make the future now.
22 September 2014, 07:00 AM ET
The MAVEN spacecraft executed a picture-perfect orbital insertion burn late Sunday night (Sept. 21), slowing down enough to get captured by Mars' gravity in a Red Planet arrival that had mission team members cheering with excitement and relief.
21 September 2014, 11:12 PM ET
What was your favorite space news story of the last week?
21 September 2014, 10:40 PM ET
The Mars Atmosphere and Volatile Evolution (MAVEN) was inserted into Mars orbit on September 21st, 2014.
The minutes leading to engine cutoff are explained by the flight systems manager Tim Priser and mission control celebrates the announcement.
21 September 2014, 10:30 PM ET
After a 10-month journey through deep space, NASA's MAVEN probe arrived in Mars orbit late Sunday, on a mission to help determine why the Red Planet changed from a warm and wet place in the ancient past to the cold, arid world it is today.
21 September 2014, 09:30 PM ET
From some celestial sleuthing for a famous painting to stunning aurora photos, don't miss these amazing space images of the week for Sept. 21, 2014.
21 September 2014, 08:51 AM ET
The private spaceflight company's CRS-4 mission launched on September 21st, 2014. The unmanned Dragon capsule is carrying supplies, a 3D printer built by Made In Space and a new X-ray machine that will be used on the mice to measure bone density loss
21 September 2014, 07:30 AM ET
NASA's MAVEN spacecraft, which will study the atmosphere of Mars like never before, arrives at the Red Planet tonight (Sept. 21) and you can watch it live online. Watch the live webcast beginning at 9:30 p.m. ET (0130 GMT).
21 September 2014, 04:48 AM ET
Sick of long, hot summer days? Well, you're in luck. Astronomically speaking, autumn is about to begin.