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.
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, 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
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, 01:00 AM ET
In what some call an act of cosmic cannibalism, the Andromeda galaxy will devour our Milky Way in about 5 billion years.
18 September 2014, 01:39 PM ET
The gas giant WASP-18b, 10X larger that Jupiter, orbits its relatively young parent star in just 23 hours. With the planet that close, the star’s magnetic field may be damped so much it is emitting x-rays at old age star rates.
18 September 2014, 10:42 AM ET
Volcanic eruptions can dramatically deepen the hue of lunar eclipses. But even with recent activity around the Pacific, the Oct 8th, 2014 passing of Earth's shadow is expected to be a normal coppery red.
17 September 2014, 02:29 PM ET
The Mars Atmosphere and Volatile EvolutioN (MAVEN) mission will study how the Mars’ atmosphere has changed over time, from a highly elliptical orbit peaking at more than 3800 miles from the surface.
17 September 2014, 01:51 PM ET
This European instrument will split the view of the night sky into 16 'tiled' images, giving astronomers a 6.7° field of view. That’s 13X the size of the Moon, as seen from Earth.
17 September 2014, 01:00 PM ET
M60-UCD1 is five hundred times smaller than our Milky Way Galaxy, yet its core contains a singularity 5 times larger. This black hole comprises 15% of the little galaxy’s total mass of about 140 million Suns.
17 September 2014, 09:31 AM ET
The CST-100 spacecraft will be put through test flights and eventually fly crewed operational missions to the International Space Station. Boeing's contract with NASA is in its final phase of certification.
16 September 2014, 09:00 PM ET
Gravitational forces interact during the the merger to form a disc. Red = Gas moving away from Earth, Blue = Gas approaching Earth.
16 September 2014, 05:30 PM ET
The space agency has been working with industry partners to develop a crew transport systems since 2010. The work from the past 4 years are highlighted.
16 September 2014, 05:04 PM ET
The SpaceX Dragon Version 2 will be put through test flights and eventually fly crewed operational missions to the International Space Station. SpaceX's contract with NASA is in its final phase of certification. Full Story: http://goo.gl/5EQVlY
15 September 2014, 01:04 PM ET
The category-3 hurricane crashes into Mexico's Baja Peninsula in this time-lapse video from the NOAA GOES-15 weather satellite.
15 September 2014, 09:31 AM ET
As demanded by the US Congress, NASA’s 70-metric-ton payload LEO-launcher, based on legacy designs and contractors, could look like this in its first test flight tentatively scheduled for 2017.
13 September 2014, 11:49 AM ET
In preparation of its test flight, the next-generation NASA capsule has been transferred from the Kennedy Space Center's Neil Armstrong Operations and Checkout Building to the Payload Hazardous Servicing Facility.
13 September 2014, 11:19 AM ET
Chad Blakley (http://lightsoverlapland.com) captured a vibrant display of Northern Lights over Abisko National Park in Sweden on Sept. 12, 2014. They were generated by a KP-7 geomagnetic storm that hit Earth as a result of two coronal mass ejections.
12 September 2014, 09:41 AM ET
ESA’s Rosetta mission will attempt to to land its Philae lander on comet 67P/Churyumov-Gerasimenko in November 2014. ESA recently released their 5 top choices and on September 15th, 2014 they will announce the landing site (and its backup).
12 September 2014, 08:33 AM ET
The Mars Science Laboratory has driven nearly 5 miles on the surface of the Red Planet and is ready to start the next phase of its mission. Curiosity mission scientist Katie Stack reports.
11 September 2014, 06:52 PM ET
NASA's Solar Dynamics Observatory (SDO) and Solar and Heliospheric Observatory (SOHO) captured September 10th, 2014's X1.6-class flare and ensuing coronal mass ejection (CME).
11 September 2014, 01:09 PM ET
The Mars Science Laboratory Curiosity is heading to the "Pahrump Hills" outcrop (seen above the scale bar). The rover's Mast Camera (Mastcam) imaged the 'Amargosa Valley' as it would appear to humans if placed on Earth.
11 September 2014, 12:31 PM ET
Venus does not have a magnetic field and is pounded by solar wind. NASA researchers have found clues that the Sun's magnetic field lines are behind the hole formations.
11 September 2014, 09:55 AM ET
NASA's Interface Region Imaging Spectrograph (IRIS) mission can only study small areas of the Sun's surface at a time. This week’s mission planner pointed the probe at promising sunspot AR2158 just in time for an X1.6-class flare.
10 September 2014, 03:25 PM ET
Sunspot AR2158 produced a X1.6-class flare on September 10th, 2014. The site of the blast faced where Earth would be if a coronal mass ejection (CME) was emitted. Imagery not yet fully returned from orbiting observatories will be checked for this.
10 September 2014, 01:20 PM ET
Having traveled 25 miles since landing in 2004, the long-lived NASA rover snapped an image that included several hundred yards of its tracks as it rolled along the rim of Along the rim of Mars Endeavour Crater on Mars.
10 September 2014, 12:53 PM ET
A tour of nearby cool objects takes us to W0855 which, researchers believe, has water and sulfides in its atmosphere. The icy body is as cold as the North Pole and 3 to 10 times larger than Jupiter.
10 September 2014, 10:34 AM ET
A prototype was created by researchers at NASA's Jet Propulsion Laboratory and Brigham Young University. They could be "useful one day in utilizing space solar power for Earth-based purposes" according to NASA.
10 September 2014, 06:00 AM ET
The cluster is located about 90,000 light years away in the Sagittarius Dwarf Galaxy. Astronomers using Europe's Very Large Telescope (VLT) in Chile have been observing the cluster to measure levels of the element lithium in its stars.
09 September 2014, 01:41 PM ET
Sunspot AR2158 unleashed an M4.6-class flare on September 9, 2014. NASA estimates that the coronal mass ejection (CME) was moving pretty fast. According to Spaceweather.com, "it will deliver a glancing blow to Earth's magnetic field."
09 September 2014, 01:17 PM ET
ESA astronaut Alexander Gerst has been snapping imagery of Earth throughout his stay on the ISS. The space agency's production team created the movie with artistic effects such as light trails, created when superimposing imaging and fading slowly.