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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.
21 September 2014, 03:40 AM ET
SpaceX plans to launch the fourth Commercial Resupply Services to the International Space Station from Cape Canaveral, Florida, on Sept. 21, 2014.
21 September 2014, 02:30 AM ET
SpaceX's Dragon capsule soared into orbit on a delivery run to the International Space Station with more than 2.5 tons of astronaut supplies, science experiments and other cargo, including 20 mice and the first 3D printer built for space.
20 September 2014, 08:19 AM ET
After streaking through space at mind-numbing speeds for 10 months, NASA's MAVEN probe and India's Mars Orbiter Mission (MOM) spacecraft will have to slam on the brakes if they hope to be captured into orbit Sunday and Tuesday.
20 September 2014, 03:41 AM ET
Mercury will be at its greatest elongation from the sun on Sunday (Sept. 21). Because of the tilt of the Earth's axis, this will place it high above the horizon in the Southern Hemisphere, but too low to be observed in the Northern Hemisphere.
20 September 2014, 03:00 AM ET
Thick clouds and rain forced the private spaceflight company SpaceX to postpone the planned launch of an unmanned Dragon cargo ship for NASA on Saturday (Sept. 20). The mission will now launch to the International Space Station on Sunday, Sept. 21.
20 September 2014, 01:15 AM ET
The AMS particle detector aboard the International Space Station has found more evidence of dark matter in cosmic ray data.
19 September 2014, 08:53 PM ET
NASA's Mars Atmosphere and Volatile Evolution (MAVEN) mission will take measurements with its Neutral Gas and Ion Mass Spectrometer (NGIMS) that have never been collected before. Dr. James Garvin speaks to Space.com's @TariqJMalik about the mission.
19 September 2014, 05:00 PM ET
The Royal Observatory Greenwich and BBC Sky at Night Magazine announced the winners of this year's astrophotography contest.