20 March 2014, 06:00 AM ET
The weather did not cooperate for night owls hoping to see a rare celestial sight in the wee hours of Thursday morning (March 20). Skywatchers stayed up late hoping to see the huge asteroid 163 Erigone pass in front of the bright star Regulus.
20 March 2014, 01:35 AM ET
Petascale supercomputers are visualizing some of the most primitive processes from the universe.
19 March 2014, 06:36 PM ET
This spectacular space wallpaper is a mosaic from NASA's Lunar Reconnaissance Orbiter showcasing the north pole in high resolution. The images run from 60 to 90 degrees north latitude, with a resolution of 6.5 feet (2 meters) per pixel.
19 March 2014, 05:04 PM ET
The new infrared mosaic from Hubble shows knotty curls of dust and gas in the Monkey Head Nebula, a star-forming region that lies about 6,400 light-years away from Earth and is also known as NGC 2174 and Sharpless Sh2-252.
19 March 2014, 04:45 PM ET
On March 17, 2014 scientists announced the first direct detection of the cosmic inflation behind the rapid expansion of the universe just a tiny fraction of a second after the Big Bang 13.8 billion years ago. Gravitational waves play a big role.
19 March 2014, 04:00 PM ET
The new mosaic — which was captured by NASA's Lunar Reconnaissance Orbiter — resolves features as small as 6.5 feet, providing information that could be used for landing-site scouting or to answer various questions about the lunar surface.
19 March 2014, 03:50 PM ET
For the first time, scientists have found primordial gravitational waves — long-sought evidence of cosmic inflation theory. Cosmic inflation suggests that the universe expanded at many times the speed of light a fraction of a second just after the Big Ban
19 March 2014, 03:15 PM ET
See the latest images of the moon from NASA's LRO spacecraft.
19 March 2014, 11:25 AM ET
Skywatchers will get a glimpse of some truly amazing night sky events in 2014, from an asteroid zooming past one of the night sky's brightest stars to amazing full moons and Martian meteor showers. See the highlights in this Space.com infographic.
19 March 2014, 10:43 AM ET
From space tourism to mining asteroids, space exploration has entered the commercial era. Tonight, aerospace industry leaders and space historians will gather at the American Museum of Natural History for a live debate about "selling space."
19 March 2014, 09:00 AM ET
Woot! Spring break is here and it's time to take a trip - space style. This spring break, I'm shadowing Columbia astronomy professors and students to see the night sky from Kitt Peak, Arizona, a mecca of astronomy observatories. Check it out.
19 March 2014, 12:59 AM ET
The Big Bang Theory is the leading explanation about how the universe began.
18 March 2014, 04:52 PM ET
Surprised at his home (by gravitational wave co-discoverer Chao-Lin Kao) theoretical physicist Linde had waited for confirmation of his theory for 3 decades.
18 March 2014, 03:00 PM ET
Energetic solar particles created a powerful 'perfect' storm in space.
18 March 2014, 02:12 PM ET
The Dark Sector Lab (DSL), located 3/4 of a mile from the Geographic South Pole, houses the BICEP2 telescope (left) and the South Pole Telescope (right).
18 March 2014, 02:02 PM ET
This animation of NOAA's GOES satellite data shows the progression of another major winter storm over the U.S. Mid-Atlantic on March 16 and 17.
18 March 2014, 01:25 PM ET
See photos, images and skywatching maps for the rare eclipse of the bright star Regulus by the huge asteroid 163 Erigone on March 20, 2014. Space.com is providing full coverage of the celestial event.
18 March 2014, 11:35 AM ET
The night sky can be a wondrous place filled with stars, but there are some brilliant celestial lights that shine brighter than others. Here's a list of the top 10 brightest stars in the night sky.
18 March 2014, 11:27 AM ET
Scientists have long suspected that volcanoes played a huge role in the evolution of cloud-shrouded Venus, the second planet from the sun. Images from Europe's Venus Express orbiter show that volcanic eruptions may not just be a thing from the past.
18 March 2014, 07:01 AM ET
The first direct evidence of cosmic inflation — a rapid period of expansion that occurred a fraction of a second after the Big Bang — could also help support the idea that this universe exists in a multiverse, scientists suggest.
17 March 2014, 08:49 PM ET
The find suggests that space-time really did expand at many times the speed of light in the first few tiny fractions of a second after the Big Bang, as predicted by the theory of cosmic inflation, researchers say.
17 March 2014, 06:26 PM ET
New information from NASA's MESSENGER solves the contradiction between the evidence of shrinking on the planet's crust and the models for heat loss in its core.
17 March 2014, 05:10 PM ET
To make the find, astronomers developed a big new array of superconducting detectors for a telescope at the South Pole, which spotted characteristic patterns in ancient light left over from the Big Bang.
17 March 2014, 04:14 PM ET
The Nobel laureate talks about the apparent detection of gravitational wave signatures in the cosmic microwave background radiation, as well as what it was like to spot the CMB in 1964, putting the Big Bang theory on solid ground.
17 March 2014, 04:00 PM ET
The ground communication terminal for the Brazil/United States communication link via the Relay satellite which was launched late in 1962.
17 March 2014, 03:13 PM ET
The sun sets behind BICEP2 (in the foreground) and the South Pole Telescope (in the background) in this stunning space wallpaper.
17 March 2014, 12:25 PM ET
To celebrate the Hubble Space Telescope's 24th year in orbit, astronomers set their sights on NGC 2174, the Monkey Head Nebula. Young stars are sculpting gas and dust of this Orion constellation nebula.
17 March 2014, 11:40 AM ET
A new discovery reveals much about the expansion of the early universe by studying gravitational waves.
17 March 2014, 11:25 AM ET
Evidence that the universe rapidly expanded in its first few nanoseconds has been found by an instrument in Antarctica: Gravitational waves, which have long eluded astronomers, were spotted, supporting this cosmic inflation model.
17 March 2014, 10:45 AM ET
Gravitational waves are the "smoking gun" of the Big Bang. Predicted by Albert Einstein's theory of general relativity in 1916, a massive object like Earth distorts space-time around it like a bowling ball dropped on a trampoline.
17 March 2014, 10:45 AM ET
Moving masses generate waves of gravitational radiation that stretch and squeeze space-time.
17 March 2014, 10:45 AM ET
Artist's concepts illustrate how gravitational waves might spread through the universe.