20 July 2009, 11:07 PM ET
Jupiter has apparently been smacked again by a rogue object hurtling through space, new images show.
09 July 2009, 10:40 AM ET
It has long been known that Galileo observed Neptune, but it was thought that he discounted the object as a star.
08 July 2009, 01:33 PM ET
With some preparation, you can spot it anytime now through next week.
16 June 2009, 12:52 PM ET
Disk of gas and dust found around nearby, young binary star system.
08 June 2009, 03:21 PM ET
The moons involved this time will be Io and Ganymede.
28 May 2009, 11:49 AM ET
Large planets, like Saturn and Jupiter, could reflect activity on the Sun that we can see directly. But they also make and scatter their own X-rays. Podcast available from: chandra.harvard.edu
22 May 2009, 12:06 PM ET
Neptune is huge. But few have ever seen it. Here's your chance.
21 May 2009, 09:40 AM ET
An underwater vehicle tests an ice-covered lake in Antarctica to prepare for future Europa missions.
15 May 2009, 03:57 PM ET
You can watch the shadows of Jupiter's four largest Moons pass across the face of the planet.
11 May 2009, 06:07 AM ET
We've known that Saturn has rings for 4 centuries. But only now are we unraveling the mysteries of how they formed; what they're made of; how long they'll last; why they're so bright... "Bad Astronomy's" Phil Plait explains.
23 April 2009, 11:13 AM ET
Unexpected X-ray behavior of Jupiter and Saturn. This video is available as a podcast available from: chandra.harvard.edu
09 March 2009, 09:48 AM ET
The Great Red Spot, a colossal storm twice the diameter of our planet, has been raging for at least 300 years.
26 February 2009, 09:31 AM ET
Missing asteroids may be the handiwork of rampaging giant planets.
18 February 2009, 10:55 AM ET
NASA and Europe are pushing ahead with ambitious new missions to Jupiter and Saturn.
13 February 2009, 11:14 AM ET
This month you'll have an opportunity to see all five naked-eye planets.
14 January 2009, 11:43 AM ET
Englishman Thomas Harriot made the first drawing of the Moon through a telescope several months before Galileo.
01 January 2009, 10:28 AM ET
The International Year of Astronomy aims to get more people involved in astronomy.
18 December 2008, 02:28 PM ET
Hubble catches Ganymede ducking behind its giant host.
16 December 2008, 06:47 AM ET
Prometheus Unbound: NASA Animation of Nuclear Jupiter Mission
10 December 2008, 01:00 PM ET
New observations of hot-Jupiter exoplanet confirm suspicions that atmosphere has water vapor.
04 December 2008, 12:46 PM ET
Students detect a new exoplanet.
02 December 2008, 08:35 AM ET
Mars' ultraviolet auroral lights have been mapped for the first time.
01 December 2008, 08:20 AM ET
A newly discovered exoplanet sheds light on what will happen to Earth in billions of years.
28 November 2008, 10:26 AM ET
A slender crescent moon will appear in very close proximity to the two brightest planets in our sky, Venus and Jupiter.
27 November 2008, 09:59 AM ET
Proposal is to visit two of Jupiter’s large moons, Ganymede and Europa.
25 November 2008, 04:05 PM ET
Computer simulations get up close to Jupiter's core.
21 November 2008, 11:04 AM ET
Jupiter and Venus, the two brightest planets, draw closer together.
20 October 2008, 07:07 AM ET
A new model explains the exotic weather on distant "hot Jupiters."
17 October 2008, 10:06 AM ET
A simulation shows how thunderstorms create jet streams on giant planets.
16 October 2008, 06:56 AM ET
Tardigrades' survival in space gives more credence to the panspermia idea.
13 October 2008, 06:37 AM ET
OHB will bid against a much larger consortium to build Galileo satellites.
10 October 2008, 06:28 AM ET
Neptune is much too faint to be perceived without any optical aid.
09 October 2008, 06:59 AM ET
Cynthia Phillips strolls the surfaces of distant planets each day.
09 October 2008, 06:56 AM ET
Eight years from now, the Juno spacecraft will arrive at Jupiter.
03 October 2008, 06:54 AM ET
This week will be a fine time to seek out planet Uranus.
18 September 2008, 06:47 AM ET
Researchers found hydrothermal vents supporting an extremophile ecosystem.