07 January 2009, 09:03 AM ET
A new study outlines grim possibilities on Earth for a worst-case scenario solar storm.
05 January 2009, 08:06 AM ET
New Venus Express data reveals evidence for the loss of water from the planet's day side.
16 December 2008, 03:20 PM ET
Solar particles penetrate Earth's magnetosphere at different points, in different ways and in greater amounts than though.
16 December 2008, 12:38 PM ET
Satellite observations who atmosphere expands and contracts in unexpected short time periods.
16 December 2008, 08:08 AM ET
A stream of hydrogen atoms was detected coming from a solar flare.
12 December 2008, 01:34 PM ET
A detailed analysis of the measurements of five different satellites has revealed the existence of warm cloak of plasma around Earth.
02 December 2008, 08:35 AM ET
Mars' ultraviolet auroral lights have been mapped for the first time.
12 November 2008, 01:01 PM ET
Cassini spacecraft photographs new aurora at Saturn's pole.
07 November 2008, 03:22 PM ET
After more than two years of very low sunspot activity and hardly any flares, the sun is ramping up activity now.
03 November 2008, 08:22 AM ET
Huge magnetic portals allow high-energy particle to jet from the sun to Earth.
17 October 2008, 02:42 PM ET
A new space telescope that aims to investigate the edge of the solar system is set to launch Sunday.
09 October 2008, 06:56 AM ET
Eight years from now, the Juno spacecraft will arrive at Jupiter.
06 October 2008, 03:12 PM ET
The IBEX spacecraft plans to study the farthest edge of the solar system.
27 August 2008, 07:00 AM ET
The NSF is looking to tiny satellites for big science in space.
18 August 2008, 06:35 AM ET
A changing magnetic field could expose satellites to damaging radiation storms.
11 August 2008, 06:56 AM ET
Scientists have suggested that possible microbial life could be transferred from Venus' clouds to Earth.
24 July 2008, 02:01 PM ET
A NASA mission has solved the 30-year riddle behind Earth's most dazzling auroras.
11 July 2008, 09:38 AM ET
The current lull in activity is in line with historical norms.
10 July 2008, 06:34 AM ET
Could aliens be tuning into the most powerful radio transmitter on Earth?
03 July 2008, 02:03 PM ET
First MESSENGER flyby confirms volcanism, gives data on Mercury's magnetic field.
02 July 2008, 01:16 PM ET
Voyager examines energy and magnetic forces at the solar system's edge.
18 June 2008, 06:57 AM ET
When solar flares erupt, GPS satellites get affected by space weather.
11 June 2008, 09:28 AM ET
Current sunspot downtime unlikely to lead to new ice age.
23 April 2008, 07:00 AM ET
A solar sail could start space tests in three years.
18 April 2008, 01:18 PM ET
Astronomers have found the source of powerful starquakes on the sun.
08 April 2008, 06:44 AM ET
Astronomers find the source of the slow solar wind.
04 April 2008, 04:36 PM ET
Venus Express searches for active Venusian volcanoes.
01 April 2008, 07:01 PM ET
Astronomers image solar tsunamis, find source of solar wind.
26 March 2008, 11:54 AM ET
New sunspot groups appeared this week, and are all growing rapidly.
17 March 2008, 12:30 PM ET
Glowing spots on Jupiter created by electron beams around Io.
14 March 2008, 01:42 AM ET
Mars's and Venus's atmospheres are surprisingly similar.
03 March 2008, 05:47 AM ET
Telescope detects X-rays from stellar wind collision of binary stars.
25 February 2008, 05:38 PM ET
NASA spacecraft tracks auroral substorms.
06 February 2008, 06:43 AM ET
Discoveries about magnetic reconnection in space could unlock fusion power.
22 January 2008, 06:04 AM ET
Magnetic waves act as energy conveyor for sun's atmosphere.
03 January 2008, 02:00 PM ET
Comet particles likely formed very close to the sun.