Women's tennis stars send messages of support to those affected by Japan's earthquake and tsunami.
An asteroid the size of an aircraft carrier passed within the moon's orbit Tuesday, the closest approach by an object that large in more than 30 years.
Kevin Yates of the Near Earth Objects Information Centre discusses an asteroid that is to pass close to Earth.
The streak of light that blazed across southwestern U.S. skies and stoked burning curiosity across the social media landscape was probably a tiny and bright meteor known as a fireball, a NASA spokeswoman said Thursday.
Some people in the Southwest reported seeing a mysterious light streaking across the sky on Wednesday.
Astronomers just discovered the largest reservoir of water ever, roughly 140 trillion times the volume of the Earth's oceans. With severe drought afflicting Africa, Asia and the southern United States, you might ask whether this offers a solution to earthly afflictions.
The Dawn spacecraft mission could answer some of the big questions about the Big Bang, NASA scientists said Monday as they released the latest images from the mission.
The pace at which the Greenland and Antarctic ice sheets are melting is "accelerating rapidly" and raising the global sea level, according to findings of a study financed by NASA and published Tuesday.
To the untrained eye, the images from 200 million miles away don't look much like a crater. But scientists say it's there, no question about it.
Mission controllers at NASA's Jet Propulsion Lab get images of comet Tempel 1 taken by NASA's Stardust spacecraft.
The Supreme Court has again rejected broad privacy rights for some government workers.
NASA explores the images transmitted from a fly-by mission with the Hartley 2 comet.
NASA is getting ready for a close encounter of the real kind with another comet next week. The Deep Impact spacecraft, already in flight, will come within 435 miles of comet Hartley 2 on November 4 in a history-making fly-by.
A team of scientists at NASA's Jet Propulsion Laboratory, in Pasadena, California, has developed a new imaging technology that could one day lead to the prediction of earthquakes.
The massive earthquake that struck Chile on Saturday may have shifted Earth's axis and created shorter days, scientists at NASA say.
NASA launched a new telescope into space on Monday to scan the cosmos for undiscovered objects, including asteroids and comets that might threaten Earth.
Scientists at NASA have discovered a nearly invisible ring around Saturn -- one so large that it would take 1 billion Earths to fill it.
Jupiter is sporting a new scar after an unseen object hit the gaseous planet this week, NASA scientists say.
NASA and Japan improved our world view this week, or at least our view of the world.
It can often seem like hard work keeping track of the changes happening to our planet. Another day, another new prediction. Another week, another warning. It's enough to make even the most conscientious climate change student issue a weary discombobulated sigh.
A dust storm and the onset of Martian winter have brought the Phoenix Mars Lander's mission to an end, NASA announced Monday.
The Phoenix Mars Lander has entered a state of suspended operation called "safe mode" due to low power, mission managers said Thursday. And while they hope to recharge batteries and reactivate the spacecraft in the coming days, they say the rapid onset of the Martian winter means Phoenix's days are severely numbered.
Will NASA's flagship mission to Mars fly next year? The space agency could decide as early as Friday whether to cancel, delay or proceed with plans to launch a nuclear-powered, SUV-size rover to the red planet
As an organization they're used to investing billions of dollars in scientific experiments that further our knowledge of earth and space. But the only bill to speak of on this occasion is orange and attached to the body of a rubber duck.
CNN's Ben Wedeman gets a preview of a hi-tech initiative allowing anyone with an online computer to access the Dead Sea Scrolls.
More than 2,000 years after they were written, the Dead Sea Scrolls are going digital as part of an effort to better preserve the ancient texts and let more people see them than ever before.
Scientists using American space technology have started a huge project to digitally photograph the Dead Sea Scrolls, the oldest known version of the Hebrew Bible, and post it on the Internet for all to see
CNN's Miles O'Brien and our SciTech team give us a tour of the Phoenix Mars Lander!
(TUCSON, Ariz.) -- Scientists for the Phoenix Mars Lander are wrestling with an intermittent short circuit on the spacecraft.
Mission investigators describe photos of the Phoenix lander, shot by another probe, and others sent by the lander.
NASA's latest mission will analyze the Red Planet's permafrost for signs of past and present life
Nearly three years after landing on Mars, the rover "Opportunity" has reached a region of the planet that may provide the best clues yet about the history of the red planet.
NASA started it all back in 1976 with an image of an interesting mountain on Mars and a caption that described it as appearing to have eyes and nostrils.
Since Deep Blue's victory over chess champion Gary Kasparov, humans have had to grow used to the idea of being eclipsed by computers in the most intellectual of mind games.
A capsule carrying dust particles from the tail of a comet parachuted to Earth on Sunday, and elated NASA scientists were eager to examine the samples for clues about how the solar system formed.
A NASA space probe slammed into a comet early Monday, capping a six-month mission that researchers hope will give them new clues about the birth of our solar system.
Day of the cometupdated: Thu Jun 30 2005 09:28:00
Six months after it blasted off from Earth, the Deep Impact spacecraft is poised to meet its cosmic fate -- in a hyper-speed smashup with a comet.
The Cassini spacecraft's most recent flyby of Titan, Saturn's largest moon, found that its upper atmosphere is full of complex organic material, a discovery that could help unlock the mystery of life on our own planet, scientists said Monday.
The durable twin rovers on Mars have gotten yet another lease on life, with NASA announcing Tuesday it would fund another 18 months of operations.
An asteroid expected to fly past Earth in 2029 will be visible to the naked eye, scientists projected Thursday.
When it comes to long life, NASA's Mars rover Opportunity takes after its robotic twin Spirit.
The two spacecraft of NASA's Deep Impact mission, dubbed Flyby and Impactor by their makers, launched Wednesday afternoon atop a Boeing Delta 2 rocket, their mission: To unlock the inner secrets of comets.
Sitting on the hill of an alien world millions of miles from home, a hardy NASA robot celebrates an anniversary Monday -- one year on the planet Mars.
A small space probe launched from NASA's Cassini spacecraft late Friday is making a beeline for the surface of Saturn's hazy moon Titan, taking an historic trip to unlock the stubborn mysteries of a perplexing place -- discoveries that might even shed light on Earth's own origins.
Scientists in the United States and Europe may get what they want for Christmas if the Huygens probe successfully separates from the Cassini spacecraft orbiting Saturn on Christmas Eve.
Martian rovers Spirit and Opportunity are going strong 10 months after they began their geological study of the red planet, mission scientists said Thursday.
Wreckage from the Genesis space capsule yielded good news on Friday when NASA scientists announced the solar payload may still fulfill its scientific promise.
The Genesis return capsule crashed in the desert on Wednesday after its parachutes failed to deploy. The craft missed a mid-air retrieval meant to save the spacecraft from hitting the Earth.
A daring trip to study the solar wind will end on Wednesday with the midair retrieval of extraterrestrial samples above the Utah desert. However, the scientific journey is only beginning.
The final addition to a trio of Earth-monitoring satellites will blast into orbit Sunday, marking a 15-year effort by NASA to study our atmosphere and climate change in better detail.
Most skiers are familiar with the slope of an expert, or black diamond, trail -- about 30 degrees, on average.
NASA decided to roll the dice on Mars this Tuesday by dispatching its rover Opportunity into a crater from which it may never escape.
After years of whittling away prospective designs for a NASA mission to search for earth-like planets around stars, the space agency narrowed the choice to two very different observatories.
The Mars rover Opportunity is perched above a crater that researchers said could open up a window into the mysterious -- and possibly wet -- history of the Red Planet.
A minor rumor has hatched on the Internet that a large and deadly asteroid will strike Earth this fall. Bulletin board discussions cite a 63 percent chance of impact.
Since October 2001, NASA's Genesis spacecraft has exposed its collector arrays made from sapphire, silicon, gold and diamond to the solar wind.
The Spirit rover on Mars took the first picture of Earth ever made from the surface of another planet. It also did a little astronomy, imaging bright stars.
Now that NASA's Opportunity rover has established a locale on Mars where rocks were once drenched in water, it is in a race against time and battery life to learn how widespread and deep the water was.
NASA's Opportunity rover sent back new images from Mars showing that small spheres previously found on the surface also exist below, in a trench the rover dug. Hints of salty water were also found in the trench, but much more analysis is needed to learn the true composition.
People think that driving a rover is like driving a car, but it's not. Since Mars is more than 100 million miles away, even at the speed of light the radio signals coming from those football-field-...
The Mars rover Opportunity rolled off its lander early Saturday, beginning the next phase of its mission to study the rocks and soil of the Martian surface for signs of water.
Some wore their lucky shirts. Others kept up a tradition of eating peanuts during the nail-biting moments of a space mission.
The Mars rover Opportunity is sending fresh data, including new photographs taken on the vehicle's parachute trip to the planet's surface, to mission control.
The Spirit rover has stopped transmitting data from Mars, NASA mission controllers said Thursday, but there were signs it is still operating at a basic level.
The Mars rover Spirit stretched its robotic arm over Martian soil Friday, and its microscopic imager is capturing even-higher-resolution images than the ones sent back after landing.
A NASA robot rumbled from its lander onto the surface of Mars on Thursday, a crucial first step in a mission to investigate alien rocks and soil for evidence of water and perhaps life.
Mission managers are preparing to roll the Mars rover Spirit off its lander early Thursday, positioning it for departure down a rear ramp.
On its first full day on Mars, a NASA craft beamed back a three-dimensional panorama of its new home, a tantalizing hint of the capacity of the most sophisticated eyes ever to scan the red planet surface.
NASA's remote controlled rover Spirit is safely sitting on the surface of planet Mars sending images to Earth, where excited scientists will examine data for signs of water and life.
A NASA robotic explorer touched down on the red planet Saturday night, sending a signal home that it survived the risky descent through the Martian atmosphere and bouncing landing.
Here's a NASA story with a happy ending. It's a tale of heroic knowledge-harvesting machines and the resourceful people who attend to their well-being across the frigid vastness of space. Last Dece...
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