05 May 2015, 11:02 PM ET
Most of the stars in the universe are main sequence stars. The sun is a main sequence star.
05 May 2015, 07:42 PM ET
Sunspot AR2339 unleashed an X2.7 solar flare on May 5th, 2015. A radio blackout alert was issued for areas over the Pacific Ocean by NASA/NOAA. NASA's Solar Dynamics Observatory (SDO) captured the fireworks in multiple wavelengths.
05 May 2015, 04:21 PM ET
A cosmic record has been broken: The most distant galaxy ever measured is 13.1 billion light-years away from Earth, making it one of the earliest galaxies to ever form in the universe.
05 May 2015, 02:39 PM ET
Researchers using the Chandra X-ray telescope have discovered a group of black holes consuming massive amounts of matter. The black holes are surround by 'thick-disk' quasars that are 5 to 10 percent more efficient in devouring matter.
05 May 2015, 10:07 AM ET
The sound was recorded by a UNC Chapel Hill payload aboard a high altitude balloon. The balloon was commissioned by Louisiana State University's High Altitude Student Platform (HASP) program and flew to an altitude of ~22 miles in 2014.
05 May 2015, 07:37 AM ET
Researchers found that temperatures on the "super Earth" exoplanet 55 Cancri e varied by nearly a factor of three between 2011 and 2013. One possible explanation for this huge variability is massive volcanism, astronomers said.
05 May 2015, 07:00 AM ET
A new photo captured by NASA's Mars rover Opportunity shows a rocky spire in a shallow crater on the Red Planet. The mosaic combines images taken by Opportunity's panoramic camera on March 29 and March 30.
04 May 2015, 09:32 PM ET
The century-old outburst from a classical nova is still going strong and surprising astronomers with its steady temperature.
04 May 2015, 03:29 PM ET
Sparks flew on Capitol Hill where a NASA authorization bill that recommends deep cuts for Earth science made it out of a sharply divided committee on a party line vote.
04 May 2015, 10:28 AM ET
NASA's Solar Dynamics Observatory (SDO) captured the evolution of the so called ‘Phoenix Prominence’ over a 6 hour period on April 21st, 2015 in several extreme ultraviolet wavelengths.
04 May 2015, 09:44 AM ET
When Charles Limoli and colleagues exposed mice to a single beam of extremely concentrated radiation, the rodents’ brain cells’ dendrite became damaged.
04 May 2015, 07:13 AM ET
Ropes of hot material that twist and writhe on the surface of the sun appear in unprecedented detail thanks to new observations.
04 May 2015, 07:00 AM ET
Two ringlike structures of stars wrapping around the Milky Way's outer disk now appear to belong to the disk itself. The results show that the disk is actually rippled and about 60 percent larger than previously thought.
04 May 2015, 07:00 AM ET
At a panel discussion Thursday (April 30) at New York's Intrepid Sea, Air & Space Museum, scientists discussed how much Hubble has allowed humans to see, and the possibilities for the telescopes' successor, scheduled to launch in 2018.
02 May 2015, 02:21 PM ET
From a spacecraft spinning out of control to predicting a cosmic demise, don't miss these amazing space images of the week for May 3, 2015.
01 May 2015, 09:31 AM ET
The Large Binocular Telescope Observatory snapped imagery of an occultation of Jupiter Moon's Io by its sister Jovian moon Europa. The bright spots on Io are its massive lava lakes.
01 May 2015, 06:27 AM ET
Rare loner galaxies millions of light-years away from any neighbors may be runaways from violent, disruptive relationships with other galaxies, researchers say.
01 May 2015, 06:19 AM ET
The newfound exoplanets, known as HD 7924c and HD 7924d, are "super Earths" with masses 7.9 and 6.4 times greater than that of Earth, researchers said. They orbit the star HD 7924, which lies just 54 light-years from the sun.
01 May 2015, 06:11 AM ET
Just hours before NASA's MESSENGER spacecraft crashed into the surface of Mercury, the winners of a contest to name five new craters on the rocky planet were announced.
30 April 2015, 06:00 PM ET
Clumps of small, glassy particles may be responsible for the formation of giant asteroids and the planetary 'embryos' that collided to form rocky planets like Earth, a new study suggests.
30 April 2015, 04:35 PM ET
NASA's MESSENGER probe crashed at 3:26 p.m. EDT Thursday (April 30), gouging a new crater into Mercury's surface. This violent end was inevitable for MESSENGER, which had been orbiting Mercury since March 2011 and had run out of fuel.
30 April 2015, 10:13 AM ET
NASA's MESSENGER spacecraft will smash into Mercury today, April 30, to end its mission and you can celebrate the probe's epic voyage in a live Slooh webcast. Here's how to watch at 3 p.m. EDT.
30 April 2015, 07:30 AM ET
New images provide the first complete 3D view of the Pillars of Creation — some of the most iconic cosmic structures ever studied — and suggest that the glorious protrusions may be around for only another 3 million years.
30 April 2015, 07:20 AM ET
Using the ESO's Very Large Telescope, astronomers have created a new 3D visualization of the the famous Eagle Nebula, showing distance between each ‘pillar.’ Space.com stirs in Hubble images.
30 April 2015, 07:00 AM ET
The search for life beyond Earth homes in on water, whose unique properties make it critical to life as we know it and whose abundance throughout the solar system is becoming increasingly clear to scientists.
30 April 2015, 12:46 AM ET
DARPA is an agency of the U.S. military that tests and develops new technologies.
29 April 2015, 05:02 PM ET
New photos of Pluto and its largest moon, Charon, by NASA's New Horizons spacecraft have revealed tantalizing hints at surface features on the dwarf planet, including signs of a polar ice cap. See the photos from new Horizons here.
29 April 2015, 04:17 PM ET
Dwarf planet Pluto and its largest moon Charon are seen to orbit one another in this set of images from NASA’s Pluto New Horizons LORRI camera, taken when the spacecraft was about 90 days out from its closest encounter.
29 April 2015, 03:50 PM ET
The remains of thousands of stars might exist in a vast graveyard near the giant black hole that's at the center of our Milky Way galaxy, researchers say.
29 April 2015, 03:30 PM ET
Jupiter's aurora — constant curtains and waves of electric-blue colors high in the murky brown atmosphere — flare up because of an effect that has nothing to do with the sun and everything to do with the gas giant's moons.
29 April 2015, 01:12 PM ET
Your AI tour guide awaits you at the new Museum of Science Fiction.
29 April 2015, 12:13 PM ET
The1.6m New Solar Telescope at the ground-based Big Bear Solar Observatory has captured unprecedented images of a twisting solar magnetic structure as it touches off ribbons of flares.