07 May 2015, 04:21 PM ET
The hostile environment around small, red stars could make some planets inhospitable, but could these same stars make other planets just right for life?
07 May 2015, 04:19 PM ET
To prepare for future colonies on Mars, NASA is asking the public for ideas on how to keep Red Planet astronauts safe with minimal resupplies from Earth.
07 May 2015, 03:00 PM ET
Researchers have reproduced a wide array of life's building blocks in a scenario involving meteorites and the solar wind, suggesting that such chemicals may exist on many bodies in our solar system.
07 May 2015, 02:28 PM ET
Mercury has possessed a magnetic field for billions of years, and it may have once been as strong as the Earth's, researchers say.The discovery, was made by studying data from NASA's recently crashed MESSENGER spacecraft.
07 May 2015, 01:55 PM ET
Astronomers driving the Atacama Large Millimeter/submillimeter Array (ALMA) have imaged a cosmic "dinosaur egg;" a dense knot of star-birth within a pair of interacting galaxies, likely similar to ancient regions where star clusters were born.
07 May 2015, 07:47 AM ET
While some scientists are focused on finding Earth's exoplanet twin, one group is looking for twins of Venus. Their findings may help the hunt for Earth-like planets.
07 May 2015, 07:31 AM ET
Chemical reactions that free up energy that could potentially support a biosphere are occurring deep within Enceladus' salty subsurface ocean, a new study suggests.
07 May 2015, 07:27 AM ET
Astronomers have spotted a dead star polluted with heavy elements, suggesting that the star recently chowed down on a water-laced asteroid.
06 May 2015, 04:19 PM ET
Scientists at space agencies across the world are using satellite images and other technologies to aid those affected by Nepal's earthquake.
06 May 2015, 03:14 PM ET
Imagery from NASA's Cassini mission has shown what was believed to be discrete jets or geysers erupting from the surface of Enceladus. A new investigation has revealed that the eruptions may be more widespread.
06 May 2015, 01:01 PM ET
Most of the seemingly discrete geysers seen on the Saturn moon Enceladus until now may have just been optical illusions of much broader "curtain" eruptions, a new study reports.
06 May 2015, 06:30 AM ET
The water plume seen on Jupiter's moon Europa in 2013 may have been a rare event, which implies the satellite may be a solid ball of ice and inhospitable to life.
06 May 2015, 06:23 AM ET
The X-class solar flare — the most powerful class of sun storm — erupted Tuesday from a sunspot called Active Region 2339, peaking at 6:11 p.m. EDT. NASA's Solar Dynamics Observatory spacecraft captured a gorgeous video of the flare.
06 May 2015, 06:00 AM ET
Could water have carved channels on Mars as recently as 500,000 years ago? If that's the case, it would boost the case for relatively recent life on the Red Planet.
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.