26 October 2010, 10:23 AM ET
NASA has selected an Atlas 5 rocket to launch a new orbiter to Mars in November 2013.
20 October 2010, 01:27 PM ET
The mystery behind the faint glow of light in Earth's upper atmosphere, known as the diffuse aurora, has been found, scientists say.
06 October 2010, 06:12 PM ET
NASA has approved a new mission to Mars that will investigate how the Red Planet has lost its atmosphere over the years.
06 October 2010, 01:01 PM ET
A new look at the sun's connection to Earth's climate has returned some surprising results.
30 September 2010, 02:14 PM ET
The edge of our solar system is a much more dynamic place than previously thought, new research suggests.
30 September 2010, 02:12 PM ET
Scientists have long known that the colorful Northern Lights that amaze skywatchers are more than just pretty light shows in the sky. But until now, the engine behind their diversity has been a mystery.
28 September 2010, 02:27 AM ET
NASA will gather scientists together Wednesday (Sept. 29) to announce new findings about the edge of our solar system from a spacecraft gazing at the region from its orbit around Earth.
23 September 2010, 06:21 PM ET
Earth isn't the only planet in the solar system with a dazzling aurora borealis light show.
23 September 2010, 02:16 PM ET
Observations by NASA's Cassini spacecraft show a stunning aurora light show on Saturn.
22 September 2010, 06:49 PM ET
Lightning on Venus and Earth may spark in much the same way despite vast differences in the atmospheres of the two planets, scientists say.
22 September 2010, 04:08 PM ET
Two NASA satellites peering at the sun have snapped photos of Mercury's long, comet-like tail, and it took an interested amateur to bring the pictures to light.
22 September 2010, 11:33 AM ET
When storms of charged particles rage on the sun, they don't always travel in a straight line, a new study finds.
20 September 2010, 11:46 AM ET
A new website will broadcast live views of the northern lights through 2013.
13 September 2010, 12:00 PM ET
The luminous auroras of Earth's northern lights show may get a boost Monday from a weekend solar eruption.
10 September 2010, 06:12 PM ET
The sun unleashed a huge solar flare and eruption Sept. 8, but the sun storm is not aimed at Earth.
03 September 2010, 04:13 PM ET
A new picture reveals our sun up-close like never before.
02 September 2010, 06:49 PM ET
NASA is developing a mission to plunge a car-sized probe directly into the sun's atmosphere, exploring a region no spacecraft has ever visited.
23 August 2010, 07:24 PM ET
MOSCOW (Interfax) – A Dnepr civilian rocket converted from the Russian RS-20 Voyevoda intercontinental ballistic missile (known as SS-18 or Satan in the West) orbited two Japanese OICETS and INDEX satellites, at 5:25 p.m. EDT (2125 GMT) on Tuesday, the Sp
17 August 2010, 02:00 PM ET
The IBEX spacecraft has taken unprecedented images of the solar wind crashing into Earth's protective magnetosphere.
09 August 2010, 05:20 PM ET
Another powerful solar flare may trigger more spectacular aurora views for lucky skywatchers.
06 August 2010, 05:46 PM ET
A dramatically vivid new image of the sun shows the Aug. 1 solar eruption in the star's northern hemisphere that blasted charged particles in Earth's direction, triggering stunning aurora displays and geomagnetic storms that lasted about 12 hours.
06 August 2010, 10:27 AM ET
A solar flare from the sun this week poses no threat to astronauts on the International Space Station or plans for vital spacewalk repairs on the orbiting lab, NASA officials have said.
05 August 2010, 04:15 PM ET
A long lull in solar activity recently may have been caused by changes in the conveyor-belt-like process that moves material around the surface of our star, a new study found.
05 August 2010, 10:35 AM ET
On August 1, Earth orbiting satellites detected a C3-class solar flare. At about the same time, an enormous magnetic filament stretching across the sun's northern hemisphere erupted. Recorded by STEREO and SDO respectively.
05 August 2010, 09:43 AM ET
One of the fastest big solar flares in years has been observed by NASA spacecraft watching the sun.
02 August 2010, 06:17 PM ET
Skywatchers at high latitudes could be in for a spectacular treat of northern lights, the aurora borealis, Tuesday and Wednesday: After a relatively quiet stretch, it appears the sun is ramping up its activity.
27 July 2010, 05:48 PM ET
Like an earthquake in space, so-called spacequakes are temblors in Earth's magnetic field caused by plasma flying off the sun.
13 July 2010, 08:56 AM ET
Scientists have identified a massive eruption from the sun in April that reached all the way to Earth and may be responsible for knocking out a satellite, creating a so-called 'zombiesat.' The coronal mass ejection occurred on April 3 and may have disable
29 June 2010, 08:10 AM ET
Contamination in astrophysical soft X-ray observations could actually hold the key to dramatically improving space weather forecasts.
23 June 2010, 05:57 PM ET
A new space camera designed to watch the sun from its perch aboard an advanced weather satellite has taken its first photograph of our nearest star.
21 June 2010, 12:59 PM ET
Aurora over South Pole likely caused by solar storm.
14 June 2010, 06:53 AM ET
The sun's temper ebbs and flows on what scientists had thought was a pretty predictable cycle, but lately our closest star has been acting up..
09 June 2010, 12:11 PM ET
The sun is about to get a lot more active, which could have ill effects on Earth. So to prepare, top sun scientists met Tuesday to discuss the best ways to protect Earth's satellites and other vital systems from the coming solar storms.
27 May 2010, 02:09 PM ET
Cosmic material that has settled on the moon over billions of years could shed light on where a peculiar type of nitrogen in our solar system came from.
07 May 2010, 09:28 AM ET
A strong geomagnetic storm set off a dazzling aurora display this week, and it could happen again Saturday.
03 May 2010, 01:40 PM ET
The out-of-control satellite Galaxy 15 is posing a risk to other nearby communications satellites as it wanders from its former orbit.