21 May 2011, 08:24 AM ET
Pope Benedict XVI talks about the delicate nature of the Earth on many levels in a conversation with astronauts aboard the ISS on May 21, 2011.
18 May 2011, 10:00 AM ET
The magnetosphere protects life on Earth from harmful solar storms.
18 May 2011, 06:30 AM ET
NASA's Aquarius/SAC-D mission will take global measurements of the saltiness, or salinity, of Earth's oceans.
12 May 2011, 09:19 PM ET
Water circulation from ocean to atmosphere, to land and back has a major impact on oceanic salinity levels; NASA's Aquarius satellite will give scientists the ability to monitor the effects of those changes on ocean circulation and the climate.
12 May 2011, 08:57 PM ET
NASA's Aquarius satellite will sport a state of the art radiometer for detecting natural thermal emissions and a scatterometer, to compensate for waves, in this study of the impact of ocean salinity on climate change.
12 May 2011, 08:31 PM ET
NASA's mission to study the role salinity plays in climate change.
12 May 2011, 01:30 PM ET
NASA's Aquarius mission to study ocean salinity will improve the understanding of water cycle, ocean circulation and climate, according to Project Manager Amit Sen.
12 May 2011, 01:19 PM ET
Salinity has an major impact on ocean circulation, thus affecting how heat is distributed on Earth. NASA's Aquarius mission will measure salt levels to give scientists better understanding of how oceans influence the climate.
10 May 2011, 01:37 PM ET
Morocco's desert sands provide a look at life's history on Earth … and maybe Mars, too.
09 May 2011, 03:24 PM ET
The mineral had never been found in nature before now.
09 May 2011, 11:52 AM ET
Astronauts see 16 sunrises & sunsets in one 24-hour orbital period.
07 May 2011, 05:53 PM ET
Astronaut Ron Garan snaps amazing photos of Earth from space and blogs about Earth's beauty on Fragile Oasis.
03 May 2011, 01:16 PM ET
This autumn, an asteroid the size of an aircraft carrier will zoom closer to Earth than our own moon, causing scientists to hold their breath.
21 April 2011, 05:24 PM ET
NASA astronaut Ron Garan's blog, Fragile Oasis, aims to inspire people to cherish the beauty and wonder of our planet Earth.
21 April 2011, 04:09 PM ET
NASA is hosting a variety of online activities to celebrate Earth Day 2011 on Friday (April 22).
14 April 2011, 02:57 PM ET
Holbox Island off the Yucatan Pennisula has waters so dark its name means "black hole" in Mayan.
13 April 2011, 02:36 PM ET
The Tigris and Euphrates rivers were part of the first views of Earth by space shuttle astronauts.
04 April 2011, 06:02 PM ET
Wadi Rum is an alien-looking landscape in Jordan.
01 April 2011, 12:35 PM ET
NASA's Kepler mission observatory has discovered found 1,235 potential alien planets so far. A new image puts them all together.
30 March 2011, 11:02 AM ET
NASA's Project Icebridge estimates show that Artctic sea ice has now melted back to 1/2 the size of the continental U.S. (3,717,813 sq mi). Scientists like Tom Wagner are investigating how much more will melt and when.
24 March 2011, 03:40 PM ET
Europe's GOCE mission to study the Earth's gravity field has begun a detailed analysis of the Earth's interior, shedding light on how continents move, to advance an early warning system for earthquakes.
24 March 2011, 01:59 PM ET
Structures thought of as the oldest known fossils of microbes might actually be microscopic mineral formations.
21 March 2011, 05:05 PM ET
Does our magnetic field really shield Earth from the solar wind?
18 March 2011, 01:34 PM ET
Scientists want to understand two complex bands of radiation in Earth's atmosphere.
16 March 2011, 02:01 PM ET
Satellite maps have been a vital part of relief efforts following Japan's devastating earthquake and tsunami.
11 March 2011, 03:13 PM ET
Black holes can pulse space itself making it resonate with gravitational waves. New and planned Earth-based detectors will rip such space songs for human ears. Hear how two dancing black holes would "sound".
10 March 2011, 12:00 PM ET
NASA's 34-year-old Voyager 1 probe is performing new tricks at the solar system's edge.
07 March 2011, 11:55 AM ET
NASA has shelved two high-priority climate satellite missions on White House orders to cut costs.
04 March 2011, 08:45 AM ET
A rocket carrying NASA's newest climate satellite Glory failed after liftoff.
04 March 2011, 08:18 AM ET
NASA's Glory mission fails to reach orbit after a fairing does not separate on March 4, 2011. Contingency investigation is underway.
03 March 2011, 02:02 PM ET
The dust grains that eventually coalesced into our solar system's planets nearly 4.6 billion years ago likely bounced around like pinballs over vast distances, new study suggests.
01 March 2011, 03:45 PM ET
Europe's Earth observation missions measure changes in sea level, ice thickness and soil moisture; then combine those data with 3 decades of satellite archives to refine predictive models.
28 February 2011, 11:46 AM ET
There will be two total lunar eclipses and four partial solar eclipses in 2011.
23 February 2011, 08:03 AM ET
The ins and outs of the Glory mission, NASA's newest climate satellite.
19 February 2011, 06:03 PM ET
There is work to be done to make sure Earth is prepared for the next solar storm.
17 February 2011, 05:08 PM ET
The sun unleashed its most powerful eruption in more than four years this week, but it could have been a lot worse, experts say. The sun's space weather cycle have serious impacts on Earth.