02 April 2014, 01:01 PM ET
After gazing up at the moon for thousands of years, we're still not exactly sure how it came to be. Here's a brief rundown of the most prominent theories scientists have come up with to explain the moon's origin.
02 April 2014, 01:01 PM ET
Scientists have pinned down the birth date of the moon to within 100 million years of the birth of the solar system — the best timeline yet for the evolution of our planet's natural satellite.
02 April 2014, 01:01 PM ET
The dusty surface of small asteroids is born by extreme temperature shifts between periods of sunlight and darkness, a cycle of drastic changes that break up space rocks over time, scientists say.
02 April 2014, 10:23 AM ET
Strange stripelike features in Earth's magnetic field are caused by the planet's spin, and not by the constant bombardment of solar particles as previously thought, scientists say.
02 April 2014, 07:00 AM ET
China’s huge new rocket is headed toward its maiden flight from the country's soon-to-be-complete launch center on Hainan Island, at the southern tip of China, far from the nation's mainland.
02 April 2014, 06:42 AM ET
Tiny space rocks called "minimoons" already cruise near Earth and would make interesting targets for manned exploration, advocates say.
02 April 2014, 06:00 AM ET
‘Rapacious’ Galaxy NGC 1316 has devoured many other galaxies during its violent history. Fossils of this mayhem can be seen in new imagery from ESO’s La Silla Observatory. In comparison, galaxy NGC 1317's spiral arms are sound.
01 April 2014, 06:00 PM ET
NASA has developed a line of tiny spacecraft based on commercial smartphones, in an attempt to demonstrate how well cheap, off-the-shelf electronics can perform and survive in the space environment.
01 April 2014, 05:32 PM ET
Add the Monastery at Petra to the monuments that humans likely built for astronomical purposes. New research suggests that ancient architects tracked the motion of the sun and constructed the religious center with the winter solstice in mind.
01 April 2014, 04:06 PM ET
A $518 million military weather satellite that has been waiting 15 years to shine will be launched into orbit Thursday atop an Atlas 5 rocket from the western spaceport in California.
01 April 2014, 02:00 PM ET
April features eclipses of the sun and moon, a meteor shower and good opportunities to see Vesta and Ceres, the two biggest bodies in the main asteroid belt between Mars and Jupiter.
01 April 2014, 01:44 PM ET
NASA astronaut Mike Hopkins swaps out the International Space Station's Solid Waste Container SWC/KTO.
01 April 2014, 12:43 PM ET
From a billionaire to a respected science journal, everyone is getting in on the ridiculous April Fools' Day fun. A few of the more elaborate jokes flying around the internet today (April 1) involve spaceflight and astrophysics.
01 April 2014, 11:08 AM ET
A historic NASA jumbo jet has been cleared for its final takeoff — not into the air, but on a road trip through the streets of Houston to the site of its future exhibit.
01 April 2014, 10:38 AM ET
A new movie premiering April 15 documents the science and people behind an amazing astronomical tool designed to catch sight of incredible, violent cosmic events trillions of miles from Earth.
01 April 2014, 10:18 AM ET
Calling all space cadets: Earthwatch wants volunteers to help search for life on Mars in what has to be the most entertaining April Fools' joke you'll see this year.
01 April 2014, 07:22 AM ET
Researchers studied the water content in the rocks from the lunar highlands. The analysis suggests that water in ancient lunar rocks and water on Earth may have a common origin.
01 April 2014, 07:00 AM ET
Scientists analyzed a 13th-century Latin text, applying modern mathematics to it, and found hints that the English medieval philosopher who wrote it in 1225 was already toying with concepts similar to the modern cosmological idea of a multiverse.
31 March 2014, 05:49 PM ET
Weather permitting, some of the best spring stargazing events could be readily visible without the aid of binoculars or a telescope, even from brightly-lit cities. But you'll need to know when and where to look to make the most of the season.
31 March 2014, 05:27 PM ET
NASA's plan to lasso an asteroid, bring it into a stable orbit near the moon and let astronauts visit it might sound ambitious, but the space agency is looking at a couple different ways to make it happen.
31 March 2014, 04:47 PM ET
The fourth episode of "Cosmos: A Spacetime Odyssey" let viewers encounter those celestial mysteries in a way that takes them beyond their own experience.
31 March 2014, 04:34 PM ET
The engines of NASA's space shuttle will be reborn for the space agency's newest rocket, designed to take humans deeper into space than ever before.
31 March 2014, 03:20 PM ET
The constellations of Ursa Major (the ‘Big Dipper') and Leo hold a bevy of skywatching goodness this month. Find out how to see the 'Leo Tripet’ of galaxies, plus the double star systems of Mizor and Alcor, and more.
31 March 2014, 03:05 PM ET
You could call it one small step for a ship, one giant leap for oceanographic research. The Navy named the first of a new class of research vessels after the first man to walk on the moon, astronaut Neil Armstrong, at a ceremony in Anacortes, Wash.
31 March 2014, 02:48 PM ET
Red Mars' close encounter with Earth, a 'red moon' total lunar eclipse (visible from North America) and the Lyrid meteor shower will highlight the month of April 2014. Also, the mornings and evenings will showcase Jupiter, Saturn and Venus.
31 March 2014, 02:46 PM ET
Scientists are using data gathered by NASA's twin Van Allen Probes, which launched to Earth orbit in August 2012, in concert with advanced computer models, to simulate the dynamic radiation environment of near-Earth space, two new studies report.
31 March 2014, 02:02 PM ET
On March 31st, 2014, NASA's Solar Dynamics Observatory captured an M1.4-class flare erupting from sunspot AR2014. During the flare, plasma erupted and was sucked backed into the Sun.
31 March 2014, 12:26 PM ET
The sun unleashed a major solar flare Saturday (March 29) that sparked a radio blackout on Earth. See video of the huge X1-class solar flare here.
31 March 2014, 11:57 AM ET
A close look by NASA's Chandra X-ray Observatory at the debris field of supernova explosion DEM L241 in the Large Magellanic Cloud has revealed a young star tightly orbiting either a tiny neutron star or a black hole. Read more: http://goo.gl/xT14vA
31 March 2014, 11:03 AM ET
Scott Kelly has just one year left on Earth. An experienced NASA astronaut and half of the first pair of twins to fly into space, Kelly will leave the planet in 2015 to become the first U.S. astronaut to log a year in space.
31 March 2014, 10:22 AM ET
The Stanford University physicist appeared overwhelmed after learning that a team of astronomers had more or less confirmed the theory of cosmic inflation, which Linde helped refine in the early 1980s after it was originally proposed by Alan Guth.
31 March 2014, 10:20 AM ET
An international team based at Cambridge U. has shown how the Sun’s twisting magnetic field lines slip, reconnect, tighten and snarl into a characteristic ’S’ shape. Knowing how such titanic energies build may better predict dangerous larges flares.