Science & Astronomy Archive
24 August 2015, 04:45 PM ET
The Cassini spacecraft recently got its last close views of Dione, a small icy moon orbiting Saturn.
24 August 2015, 03:32 PM ET
NASA's Solar Dynamics Observatory (SDO) captured an image of the flare, which erupted at 3:33 a.m. EDT (0733 GMT) this morning from a sunspot known as active region 2403.
24 August 2015, 03:30 PM ET
Ten years after the devastation caused by Hurricane Katrina, NASA has helped scientists better understand why the storm was so devastating, and how to save lives in the future.
24 August 2015, 12:51 PM ET
The ancient lunar surface once erupted with geysers of lava — and now, scientists think they know what caused these fiery fountains.
24 August 2015, 12:40 PM ET
See images of the sun's activity during 2015 in our Space.com gallery.
24 August 2015, 12:30 PM ET
An astronomer and amateur musician has coaxed a haunting melody from a star's distinctive twinkle.
24 August 2015, 11:46 AM ET
27 ‘named storms’ formed over the warm waters of the Atlantic Ocean in 2005, which spawned the most category 5 storms in a single season. NASA and NOAA tracked the paths of these killers. [On average there are only 10 storms per year.]
24 August 2015, 10:12 AM ET
Data from the GOES-5 satellite drove this simulation, illuminating the wind intensities and water vapor transport powering the massive category 5 storm, which ravaged New Orleans, Louisiana and adjoining areas in 2005.
23 August 2015, 03:33 PM ET
Scientists created a "magnetic wormhole" in the lab, a Canadian company got a patent for a huge inflatable space elevator and the mystery of the "singing" comet may be solved. Here are Space.com's top stories of the week.
21 August 2015, 05:13 PM ET
Learn the latest about Pluto in a live Google Hangout with NASA New Horizons co-lead Richard Benzel, team member Cathy Olkin, and Pluto expert Michael Brown.
21 August 2015, 02:30 PM ET
NASA's Cassini spacecraft flew close to Saturn's moon one final time on Aug. 17, 2015. See the final flyby images here.
21 August 2015, 07:00 AM ET
A strange song radiated by Comet 67P/C-G mystified scientists who first heard it last year. Now, they think they've solved the mystery of the singing space rock.
21 August 2015, 07:00 AM ET
The new calendar features a dozen of the best pictures captured by NASA's Spitzer Space Telescope, which blasted off on Aug. 23, 2003, and continues to observe the heavens today.
21 August 2015, 07:00 AM ET
Galaxies like the Milky Way may not be the best cradles of life in the universe — giant galaxies devoid of newborn stars and at least twice as massive as the Milky Way could host 10,000 times more habitable planets, researchers say.
21 August 2015, 07:00 AM ET
NanoRacks, a Houston-based company that helps commercial companies make use of the space station, has signed an agreement with the Beijing Institute of Technology to fly Chinese DNA research to the orbiting outpost next year.
20 August 2015, 09:03 PM ET
Physicists have created a so-called magnetic wormhole that transports a magnetic field from one point to the other without being detected.
20 August 2015, 05:01 PM ET
Astronomers have discovered thousands of extrasolar planets. Researchers hope to find a habitable planet someday.
20 August 2015, 03:14 PM ET
Star surfaces boil with brightness variations expressible as audio waveforms. Turkish astronomer Burak Ulaş has found that star Y Cam of the Algol eclipsing binary 'sings' on a diminished whole tone scale, which he used to compose a piano piece.
20 August 2015, 02:01 PM ET
Two experiments on Earth are helping to shine light on the hidden characteristics of dark energy and dark matter, elusive phenomena that make up nearly 95 percent of the universe but remains hidden from direct detection.
20 August 2015, 12:21 PM ET
As Scott Kelly sails on through his year-long mission, the veteran NASA astronaut has beamed down several videos from his perch on the International Space Station.
20 August 2015, 10:25 AM ET
Space.com's editors present a reading list for space and sci-fi lovers, as well as children who are interested in astronomy and spaceflight.
20 August 2015, 07:25 AM ET
The Missile Defense Agency hopes to draft a preliminary design for a new kill vehicle by the end of the year.
20 August 2015, 07:20 AM ET
Through extremely high precision measurements of a pulsar orbiting a white dwarf star, astronomers have found that the gravitational constant, which dictates the force of gravity, is "reassuringly constant" throughout the universe.
20 August 2015, 07:01 AM ET
The 28-mile-wide (45 kilometers) Jezero Crater emerged as the frontrunner among 30 or so potential locales during the second landing-site workshop for NASA's 2020 Mars rover mission.
20 August 2015, 07:00 AM ET
NASA is inviting people around the world to submit their names to be etched on a silicon chip that will be affixed to the Mars InSight lander, which is scheduled to blast off in February 2016 and touch down on the Red Planet seven months later
19 August 2015, 06:53 PM ET
For the last few months, rumors have circulated that a big asteroid will slam into Earth near Puerto Rico between Sept. 15 and Sept. 28, wreaking widespread destruction. Don't believe the hype.
19 August 2015, 05:09 PM ET
The 1-ton Curiosity rover snapped several low-angle shots with the camera at the end of its robotic arm on Aug. 5, at a site called Marias Pass in the foothills of the 3.4-mile-high (5.5 kilometers) Mount Sharp.
19 August 2015, 04:33 PM ET
The awesome new trailer for "The Martian" is full of thrilling and stressful moments, and raises important questions about the value of human life in space exploration.
19 August 2015, 01:01 PM ET
Gas-giant planets such as Jupiter and Saturn form quickly, thanks to the fast accretion of pebble-size building blocks, new research suggests.
19 August 2015, 12:35 PM ET
Wildfire smoke can be seen blanketing northern California and Washington state in new images taken by NASA satellites.
19 August 2015, 06:00 AM ET
3,000 light-years away in the Ara constellation lies the open star cluster IC 4651. According to the European Southern Observatory, "the stars in IC 4651 all formed around the same time out of the same cloud of gas."
19 August 2015, 06:00 AM ET
A middle-aged clutch of stars shines in many colors in a new image released by the European Southern Observatory. The stars in the image are from an open star cluster called IC 4651, which lies in the Milky Way about 3,000 light-years from Earth.