14 May 2015, 07:18 AM ET
"Chaotic planets" that possess wildly unpredictable orbits and climates likely circle distant stars, suggesting that some alien worlds that look habitable might actually be hostile to life for millions of years at a time, a new study reports.
14 May 2015, 07:00 AM ET
As dark matter circles around a black hole, it might create a gamma-ray signal that could be detectable from Earth. A visible signal from the otherwise-invisible stuff would be a major breakthrough in the study of this mysterious material.
13 May 2015, 10:33 PM ET
A clue to one of the biggest questions in cosmology — why did regular matter survive to fill the universe, instead of antimatter — may have been found in data from NASA's Fermi Gamma-ray Space Telescope.
13 May 2015, 05:01 PM ET
A new NASA image, captured by MODIS on the Aqua satellite, reveals clouds cover two-thirds of Earth, with some zones supporting more clouds than others on the planet.
13 May 2015, 04:45 PM ET
Mamtani took the image in Borrego Springs, California during the weekend of April 17, 2015.
13 May 2015, 04:09 PM ET
Bill Nye (The Science Guy) wants you to be a part — and get a part — of a "revolutionary solar sailing spacecraft." The leader of The Planetary Society has started crowdfunding for LightSail, a citizen-funded flight by light.
13 May 2015, 03:17 PM ET
Brightman was scheduled to launch Sept. 1 on a self-funded 10-day mission to the orbiting lab aboard a Russian Soyuz spacecraft. But Brightman announced today (May 13) that she won't be making the trip to orbit.
13 May 2015, 02:07 PM ET
Astronomers may have solved the decades-long cosmic murder mystery of what kills most galaxies in the universe: They are strangled to death . 'What kills galaxies is one of the most challenging questions in the past 20 years,' a scientist says.
13 May 2015, 11:35 AM ET
The astronaut who commanded the second-to-last space shuttle mission placed second on "Celebrity Jeopardy!," finishing behind an NFL football player. "Jeopardy made flying a rocket look easy!" said Mark Kelly.
13 May 2015, 11:11 AM ET
Small moons Styx, Nix, Kerberos and Hydra – along with the big moon Charon – ‘pulled up’ out of the noise and star field by processing images from the NASA probe's Long Range Reconnaissance Imager (April 25th-May 2nd, 2015).
13 May 2015, 08:41 AM ET
The suction fan on the Space Station potty is so loud that, well, everyone knows when you 'go.' Italian astronaut Samantha Cristoforetti explains how to turn on that fan and how-to use the International Space Station toilet.
13 May 2015, 07:30 AM ET
Do jokes about the name 'Uranus" get in the way of people actually learning about the gas giant planet?
13 May 2015, 07:19 AM ET
The reddish-brown lines that crisscross the icy surface of Europa may be radiation-blasted sea salt from the Jupiter moon's underground ocean. Radiation-blasted salt turned dark during a lab experiment that mimicked Europa conditions.
13 May 2015, 07:00 AM ET
Although DNA and RNA would not function in environments like that of Saturn's moon Titan, ethers could fulfill this key role.
13 May 2015, 07:00 AM ET
Dozens of students from 14 countries around the world came together recently to map out a manned mission to a captured asteroid in lunar orbit — a project very much like one NASA hopes to achieve by 2025.
12 May 2015, 08:08 PM ET
New Horizons took a series of images from April 25 through May 1. The shots mark the first time New Horizons has managed to resolve the extremely faint Pluto moons Kerberos and Styx, mission team members said.
12 May 2015, 04:30 PM ET
A Singapore-based team called Titans Creations spent two months planning and building the model, which measures 43.3 inches by 33.5 inches (110 by 85 centimeters) and contains so many bricks that team members lost count.
12 May 2015, 04:07 PM ET
NASA and its international partners have delayed the landing of Terry Virts, Anton Shkaplerov and Samantha Cristoforetti until early June after learning new details about the recent crash of Russia's robotic Progress 59 cargo spaceship.
12 May 2015, 03:56 PM ET
The clusters, marked in red in the video, are thought to harbor massive black holes or large amounts of dark matter. Locations of normal globular clusters (blue) and clusters that are similar to dwarf galaxies (green) are also shown.
12 May 2015, 01:18 PM ET
The Owens Valley Wavelength Array has captured 24 hours of sky, revealing our Universe in a different light. Radio astronomers ‘see’ the sky; visible light astronomers must dodge the Sun.
12 May 2015, 11:42 AM ET
A large piece of a space shuttle launch pad has landed on temporary display, where the public may catch sight of it. The gantry arm that for 30 years served as the walkway into the space shuttles has been moved outside at the Kennedy Space Center.
12 May 2015, 11:17 AM ET
The company that put the 'cup' in the first space cup of coffee now wants to put one in your hands. IRPI, the makers of the 'Space Cups' now used on the International Space Station, launched a crowdfunding campaign to produce the capillary-flow containers
12 May 2015, 11:06 AM ET
An inflatable drone could cruise the sulfurous skies of Venus next decade if Northrop Gruman can sell NASA on the mission.
12 May 2015, 10:49 AM ET
The Andromeda galaxy — the closest spiral galaxy to the Milky Way — is about six times larger and 1,000 times more massive than previously thought, new observations show.
12 May 2015, 07:30 AM ET
NASA is asking commercial launch providers to develop new systems specifically for "cubesats." These days, such bantam craft must generally piggyback aboard big rockets carrying much larger and more expensive satellites as their primary payloads.
12 May 2015, 07:30 AM ET
A new study suggests that Mars has lost the equivalent of an ocean's worth of water over the past four billion years. However, the question of whether Mars was ever warm enough to have hosted such an ocean has sparked debate.
12 May 2015, 07:25 AM ET
Aspiring astronauts got a glimpse of spaceflyers' snack options when Italian astronaut Samantha Cristoforetti showed off the International Space Station's pantry in a video uploaded by the European Space Agency on April 21.
11 May 2015, 05:05 PM ET
NASA's Dawn spacecraft has obtained the best views yet of the mysterious features, capturing them from a distance of just 8,400 miles (13,600 kilometers) in a series of images that mission team members combined to make a new Ceres video.
11 May 2015, 05:00 PM ET
Mars One CEO Bas Lansdorp and astronaut-selection chief Norbert Kraft dispute allegations by a former astronaut candidate that the colonization effort judges its applicants unfairly and is unable to finance itself.
11 May 2015, 01:12 PM ET
The ESA astronaut tours the Space Station bathroom and gives a tutorial on how nails are cut, hair is washed, teeth are brushed and more.
11 May 2015, 12:00 PM ET
Curiosity captured the images, which mission team members combined into a Martian sunset video, with its Mast Camera between dust storms on April 15, NASA officials said.
11 May 2015, 11:49 AM ET
The latest set of images of the dwarf planet from NASA's Dawn mission reveal the brights spots to be composed of many small regions "due to the reflection of sunlight" whose composition is still unknown, according to Dawn's principal investigator.