21 May 2014, 01:19 PM ET
The most massive and luminous stars were long suspected to die in explosive deaths, and astronomers now have the most direct evidence yet that these cosmic behemoths go out with a bang.
21 May 2014, 01:00 PM ET
See some of the best photos of supernovas — the explosive deaths of stars.
21 May 2014, 11:10 AM ET
Astronomers have several ways to count stars, but getting a definitive answer to how many there are in a galaxy is "surprisingly difficult."
21 May 2014, 09:01 AM ET
The image, a compilation of exposures taken by NASA's Opportunity rover on April 18, provides a great look at the 14-mile-wide (22 kilometers) Endeavour Crater, which Opportunity has been exploring since August 2011.
21 May 2014, 08:33 AM ET
Space.com shadowed a group of students from the University of California, San Diego who were selected by NASA to test an experiment on board a zero-gravity flight.
21 May 2014, 07:01 AM ET
NASA's InSight Mars lander, which is scheduled to launch toward the Red Planet in 2016, passed a key design review Friday (May 16), clearing the way for construction of the spacecraft to begin.
21 May 2014, 06:12 AM ET
Spirit and Opportunity, the Mars rovers, have outlived and outlasted any spacecraft on the surface of the red planet. Take a look at some of their latest Mars photos.
21 May 2014, 06:00 AM ET
Star cluster NGC 3590 resides in the largest single segment of the Milky Way's spiral arms that can be seen from our position in the galaxy. Exploring this cluster reveals properties of our galaxies spiral disc.
21 May 2014, 06:00 AM ET
The new photo, taken by a telescope in Chile, shows NGC 3590, a small cluster containing several dozen stars that lies about 7,500 light-years from Earth in the constellation Carina (The Keel).
20 May 2014, 11:50 PM ET
This spectacular space wallpaper shows Jupiter's shrinking trademark Great Red Spot — a swirling storm feature larger than Earth.
20 May 2014, 01:30 PM ET
The 1-ton Curiosity rover has finished its third-ever drilling operation and will soon resume the long drive toward the base of Mount Sharp, which has long been its ultimate destination, mission officials said.
20 May 2014, 07:08 AM ET
On May 20, 1964, American radio astronomers Robert Wilson and Arno Penzias discovered the cosmic microwave background radiation (CMB), the ancient light that began saturating the universe 380,000 years after its creation.
20 May 2014, 06:00 AM ET
Scientists have caught a glimpse of the processes that lead to the formation of solar flares and the associated space weather.
19 May 2014, 11:46 PM ET
This space wallpaper is an artist’s view showing the planet orbiting the young star Beta Pictoris. This exoplanet is the first to have its rotation rate measured.
19 May 2014, 08:07 PM ET
The chemical signature of a Sun-like star changes when it consumes rocky material. Trey Mack, a graduate student in astronomy at Vanderbilt University has developed a system to sleuth such stellar gobblers.
19 May 2014, 04:18 PM ET
See photos and images of NASA's ISEE-3 spacecraft, a probe launched in 1978 that is returning for an Earth flyby in August 2014, in this Space.com gallery.
19 May 2014, 03:15 PM ET
A private group preparing to repurpose a 36-year-old spacecraft from afar is in Puerto Rico this week, trying to make contact with the International Sun-Earth Explorer 3 (ISEE-3) probe with the powerful Arecibo Telescope.
19 May 2014, 02:09 PM ET
The below sea-level canyons beneath the ocean-feeding glacier cut further inland than previously estimates. Accelerated ice loss of the glacier was thought to be limited, but this finding calls into question its duration.
19 May 2014, 11:20 AM ET
A NASA space telescope captured an amazing view of a new supernova, cutting through the cosmic smoke to see the star explosion in the relatively nearby Cigar Galaxy.
19 May 2014, 10:46 AM ET
In the winter of 1997-1998, severe weather events were recorded across the continental U.S.. For month leading in the winter, warm (El Niño) conditions persisted in the Pacific Ocean. NASA's Jason-2 satellite is monitoring in 2014.
16 May 2014, 08:46 PM ET
What was your favorite space news story of the last week?
16 May 2014, 08:02 PM ET
From two neutron stars merging to Jupiter's shrinking spot, don't miss these amazing space images of the week for May 17, 2014.
16 May 2014, 07:24 PM ET
From the moon occulting Saturn to the earthgrazer meteor, don't miss these spectacular objects to watch in the night sky.
16 May 2014, 04:40 PM ET
A rare meteor storm, or especially intense meteor shower, could happen if a particular comet was active hundreds of years ago. See how such meteor storms work in this Space.com infographic on 'shooting stars.'
16 May 2014, 04:29 PM ET
The Venus Express probe is running low on fuel. So mission officials wrapped up routine science operations this week to begin preparing the spacecraft for a deep dive into the planet's fast-swirling air.
16 May 2014, 01:21 PM ET
The space agency has approved a new mission called K2 for Kepler. The telescope's original exoplanet hunt came to an end in May 2013 when the second of the spacecraft's four reaction wheels failed, robbing it of its precision pointing ability.
16 May 2014, 07:21 AM ET
The bold asteroid-redirect plan may also feature the first in-space test of the "enhanced gravity tractor" technique, which could help steer dangerous space rocks away from Earth.
15 May 2014, 08:46 PM ET
Smoke from wildfires raging in Southern California can be seen from space. NASA's Earth-watching Aqua satellite captured this image Wednesday (May 14) showing sandy-colored plumes stretching out over the Pacific Ocean from San Diego County.
15 May 2014, 08:08 PM ET
The adventurous primate Curious George is heading to Mars for the first time in a special episode of the cartoon airing Monday (May 19).
15 May 2014, 03:24 PM ET
An exoplanet that orbits its star at a whopping distance of 2,000 times the sun-Earth distance — taking 80,000 (Earth) years to complete one orbit — has been discovered. As far as exoplanets go, that’s the most extreme orbit found to date.
15 May 2014, 02:38 PM ET
A new study finds in an increase in lightning strikes after large solar winds. The findings suggest that particles from the sun may interact with the atmosphere to make lightning more likely.
15 May 2014, 02:32 PM ET
The near-Earth asteroid 2014 JG55 missed our planet by just 60,000 miles (96,560 kilometers), or about one-quarter of the distance between Earth and the moon. The flyby marked the third-closest asteroid near miss of 2014, researchers said.