18 December 2009, 04:26 PM ET
A NASA satellite has created a new map of so-called "night-shining clouds," which form at high latitudes on Earth and glow even after the sun sets.
17 December 2009, 03:28 PM ET
Cameras over poles spot auroras colliding for first time.
17 December 2009, 09:44 AM ET
When sun is at minimum in solar cycle, outer layers of Earth's atmosphere cool substantially.
17 December 2009, 07:18 AM ET
By studying the signatures of fossil life on Earth, geobiologists can get a clue of what to look for when hunting for extraterrestrial life on Mars.
24 November 2009, 07:12 AM ET
In his stunning new film "Oceans", French nature director Jacque Perrin praises satellites as a "divine balcony" from which humankind can witness our changing planet.
12 November 2009, 02:44 PM ET
Rosetta captures brilliant photo of Earth.
16 October 2009, 01:44 PM ET
A small asteroid will miss Earth but will pass inside the moon's orbit.
07 October 2009, 08:37 AM ET
A coordinated network of Earth and space-based observatories are gearing up to watch NASA's LCROSS moon crash Friday.
25 September 2009, 12:44 PM ET
The Russian space agency, Roskosmos, has decided to postpone the launch of a mission to the martian moon Phobos from 2009 to 2011.
24 September 2009, 07:23 AM ET
Photographs of Earth taken by a camera lofted into the stratosphere by MIT students.
23 September 2009, 04:54 PM ET
Two MIT students recently launched a digital camera into the stratosphere on a helium balloon, capturing amazing views of Earth from up high.
17 September 2009, 09:03 AM ET
Even during low points in the Sun's solar cycle, solar winds still bombard the Earth, a new study finds
16 September 2009, 08:43 AM ET
One of the smallest exoplanets yet discovered has just been confirmed as a rocky world, scientists announced.
27 August 2009, 11:53 AM ET
Life may have been significantly affected in the past by a cosmic ray blast, but researchers are still looking for the smoking gun.
17 August 2009, 07:02 PM ET
Learn why the moon is so pockmarked compared to the Earth.
12 August 2009, 06:08 PM ET
NASA needs more funding in order to track potentially dangerous space rocks.
06 August 2009, 03:28 PM ET
NASA's Kepler Telescope is engaged in the ultimate staring contest.
06 August 2009, 02:00 PM ET
NASA's newest planet-hunting spacecraft Kepler is in good shape to begin discovering Earth-like planets, according to its first science results, released today.
03 August 2009, 09:14 AM ET
It's only a matter of time before a dying sun may end life on earth.
31 July 2009, 01:26 PM ET
Five or so billion years from now, Earth's present orbit won't be a good place to be as the Sun swells dramatically before dying to its white dwarf stage. Best hope: Whoever is living here then is smart enough to move themselves...or move the Earth.
30 July 2009, 12:04 PM ET
A crack team of astronomers keeps constant watch for potential comets and asteroids that could slam into Earth.
28 July 2009, 08:24 AM ET
A recent asteroid collision on Jupiter is an eerie reminder that earth can get walloped too.
27 July 2009, 08:54 AM ET
Gravity is everywhere in space, even in so-called zero-gravity.
22 July 2009, 06:53 PM ET
The new image, released by NASA's Earth Observatory in cooperation with Japanese researchers, reveals a dark spot on our planet.
17 July 2009, 12:18 PM ET
NASA panel investigating failed launch of Orbiting Carbon Observatory issues report.
14 July 2009, 07:22 AM ET
New Venus Express map shows possible signature of granite, could indicate past oceans, plate tectonics.
25 June 2009, 08:33 AM ET
An in-depth look at astronomer Bill Borucki, principal investigator of NASA's planet-hunting Kepler mission.
18 May 2009, 12:25 PM ET
Astronaut Mike Massimino tries to describe the indescribable thrill of viewing Earth from space.
07 May 2009, 12:39 PM ET
Psychologists say Star Trek's peaceful future might not be so unrealistic.
04 May 2009, 09:08 AM ET
Canada is using satellite technology to track illegal fishing.
30 April 2009, 08:14 AM ET
14 April 2009, 02:25 PM ET
Twin STEREO spacecraft get three-dimensional view of coronal mass ejection.
13 April 2009, 09:42 AM ET
Twin spacecrafts are heading out to search for leftovers from a rumored lost planet of the solar system.
10 April 2009, 11:35 AM ET
Author Marsha Freeman spotlights the life of German rocket engineer Krafft Ehricke in 'Extraterrestrial Imperative.'
09 April 2009, 02:39 PM ET
New instrument detects boundary between Earth's atmosphere and solar particles.
07 April 2009, 05:22 PM ET
The difference in light reflection from the Earth’s land masses and oceans can be seen on the moon, a new study found.