Science & Astronomy Archive
14 September 2015, 04:20 PM ET
A satellite glimpsed yesterday's (Sept. 13) partial solar eclipse three times from space. Viewers in South Africa saw it just once, and tracked their experience in new skywatching photos.
14 September 2015, 02:00 PM ET
Something strange is happening on Io: The Jupiter moon's vigorous volcanoes are mysteriously offset from where scientists expected, and its underground magma oceans may be the cause.
14 September 2015, 11:16 AM ET
A partial solar eclipse occurred on Sept. 13, 2015. See photos from the event by skywatchers in South Africa and a satellite in space.
13 September 2015, 07:26 AM ET
The head of NASA’s Osiris-Rex asteroid sample-return probe plans to crowdfund an outreach budget for the mission on Kickstarter by selling a card game."
13 September 2015, 02:37 AM ET
NASA's New Horizons spacecraft beamed home incredible new images of Pluto, scientists found a giant buried ice sheet on Mars and Elon Musk chatted with Stephen Colbert about the future of spaceflight. Here are's top stories of the week. 
12 September 2015, 12:31 AM ET
Science fiction movies about aliens threatening the Earth routinely ascribe them the motive of coming here to steal our resources, most often our water.
11 September 2015, 09:49 AM ET
Theory said small irregular galaxies shouldn’t have concentrations of bass and heavy elements dense enough to give birth to bright clusters of new stars.
11 September 2015, 09:29 AM ET
What makes the moon turn dark and red? Find out in this infographic.
11 September 2015, 09:29 AM ET
How Solar Eclipses Work: When the moon covers up the sun, skywatchers delight in the opportunity to see a rare spectacle.
11 September 2015, 09:20 AM ET
The full moon happens once a month. Find out when.
11 September 2015, 08:45 AM ET
Find out the current moon phases. The moon cycles through eight phases every month.
11 September 2015, 06:00 AM ET
Mercury is a faster spinner than thought, completing a spin on its axis roughly 9 seconds more quickly than scientists previously charted — and that data will help scientists understand more about the planet's molten core.
11 September 2015, 05:27 AM ET
An image released last fall sparked debate over whether or not giant planets might form so close to one another. New evidence suggests they can, making this the first image of planetary birth.
10 September 2015, 06:07 PM ET
New imagery from the NASA's New Horizons' mission has been processed. High detailed views of the Sputnik Planum and the Chaos region give you the perspective from 1,100 miles (1,800 kilometers) above Pluto’s equatorial area.
10 September 2015, 06:00 PM ET
An "over-the-top" complex mix of craters, ice flows, mountains, valleys and apparent dunes coexist in the latest images dispatched from the New Horizons spacecraft's flyby of Pluto.
10 September 2015, 09:01 AM ET
A giant slab of ice as big as California and Texas put together lurks just beneath the surface of Mars between its equator and north pole, researchers say. This ice may be the result of snowfall tens of millions of years ago on the Red Planet.
10 September 2015, 09:00 AM ET
NASA's New Horizons probe found that Pluto's surface is reddish-brown, as is the north polar region of Charon, the dwarf planet's biggest moon. That's no coincidence: The red on both bodies is likely caused by complex compounds called tholins.
10 September 2015, 09:00 AM ET
The "Red Dragon" sample-return mission would grab samples collected by NASA's 2020 Mars rover and send them rocketing back toward Earth, where researchers could scrutinize the material for possible signs of past Red Planet life.
09 September 2015, 04:23 PM ET
A so-called "cosmic tsunami" is rousing a galaxy cluster affectionately nicknamed 'the Sausage,' suggesting that stagnant galaxies can see new life when galactic clusters collide, scientists say.
09 September 2015, 02:35 PM ET
NASA's sun-studying Solar Dynamics Observatory captured dramatic time-lapse video of a solar tornado that raged from Sept. 1 through Sept. 3. The temperature of spinning plasma reached 5 million degrees Fahrenheit (2.8 million degrees Celsius).
09 September 2015, 12:11 PM ET
Ice? Diamonds? Salt-lick for giant nocturnal astro-worms that follow the terminator around the dwarf planet so they're always in darkness (never photographed by NASA’s Dawn probe). NASA wants your guess...
09 September 2015, 11:49 AM ET
What is space-time, really?
09 September 2015, 10:12 AM ET
NASA's Solar Dynamics Observatory (SDO) watched the Sun’s magnetic forces twist and turn enormous plumes of superheated plasma from Sept. 1-3, 2015. The particles observed by SDO – mostly iron – were measured at a blazing 5 million degrees.
09 September 2015, 07:00 AM ET
NASA's New Horizons spacecraft has begun beaming home tens of gigabits of data gathered during its historic July 14 flyby of Pluto. The entire flyby data set should be on the ground in about 12 months.
08 September 2015, 07:31 PM ET
A lot of folks study the stars, but what's the point?
08 September 2015, 03:40 PM ET
Researchers tested two "hedgehog" robot prototypes this summer to get an idea of the machines' potential to explore space locations inaccessible to conventional rovers.
08 September 2015, 03:00 PM ET
Arizona-based World View Enterprises announced today that it's introducing a cost-sharing system that will let researchers loft their experiments to near space, about 130,000 feet (39,600 meters) above Earth, via a balloon for as little as $20,000.
08 September 2015, 07:00 AM ET
Researchers probing the heart of a massive-star-forming region found an intricate surprise: an unusual hourglass structure shaped by multiple jets of gas. Those jets suggest the structure hides two bulky newborn stars at its heart.
08 September 2015, 07:00 AM ET
While the main thrust of the Europa mission, which NASA aims to launch by the mid-2020s, involves characterizing the icy satellite from afar during dozens of flybys, the space agency is considering sending a small probe down to the surface as well.
05 September 2015, 06:46 PM ET
The Star Wars toys awaken, a looming 'supermoon' eclipse overshadows a solar eclipse, and hoverboard technology aims for the stars in's best stories for this week.
04 September 2015, 08:34 AM ET
"And it's melting!" according to NASA. The deep ocean beneath Greenland is fueled by currents from the subtropics. This warm and salty water is melting the ice from the bottom up and much faster than the surface water.
04 September 2015, 07:48 AM ET
Before petal-shaped starshades can be sent to space to study alien planets, they must first be thoroughly tested in Earth's mountains and deserts.