12 September 2014, 12:54 AM ET
Powerful solar flares from the sun this week may amplify the northern lights displays over parts of the northern United States through the weekend, space weather scientists say.
11 September 2014, 07:10 PM ET
NASA's Solar Dynamics Observatory (SDO) and Solar and Heliospheric Observatory (SOHO) captured September 10th, 2014's X1.6-class flare and ensuing coronal mass ejection (CME).
11 September 2014, 06:04 PM ET
NASA's Interface Region Imaging Spectrograph (IRIS) mission can only study small areas of the Sun's surface at a time. This week’s mission planner pointed the probe at promising sunspot AR2158 just in time for an X1.6-class flare.
11 September 2014, 06:02 PM ET
The sun launched back-to-back solar flares directly at Earth this week, but the geomagnetic storms pose little danger, officials said.
11 September 2014, 06:01 PM ET
Sunspot AR2158 produced a X1.6-class flare on September 10th, 2014. The site of the blast faced where Earth would be if a coronal mass ejection (CME) was emitted. Imagery not yet fully returned from orbiting observatories will be checked for this.
11 September 2014, 05:10 PM ET
Solar flares are powerful blasts of radiation unleashed by the sun. When aimed directly at Earth, these eruptions can trigger geomagnetic storms and knock out power grids and communications. Here are some spectacular photos of solar flares.
11 September 2014, 12:31 PM ET
The sun fired off strong flares Tuesday and Wednesday from a sunspot known as Active Region 2158, which will be the focus of a free webcast hosted today at 1 p.m. EDT by the online Slooh Community Observatory. Watch it here on Space.com.
09 September 2014, 12:39 PM ET
After a dramatic growth spurt this week, a wildfire burning in California's Yosemite National Park forced hikers to evacuate and produced a billowing veil of smoke that can be seen from space.
09 September 2014, 12:02 PM ET
Mars rovers built by students from around the world took part in the European Rover Challenge, a competition to build robots that could aid humans on a future manned mission to the Red Planet.
09 September 2014, 01:55 AM ET
A committee formed by the Nicaraguan government determined that a new, 39-foot-wide (12 meters) crater found near capital city Managua's international airport was blasted out by a space rock strike Saturday night. But experts aren't convinced.
08 September 2014, 06:42 PM ET
This past weekend, students from around the world faced off in a competition to test mock Mars rovers designed to explore the surface of the Red Planet.
08 September 2014, 03:37 PM ET
Are you ready to capture the "supermoon" tonight? This evening, the moon will be at its best — in its full phase and at its closest point to Earth. If you have got a camera ready, it's a prime opportunity to capture a brilliant lunar spectacle.
08 September 2014, 02:17 PM ET
The full Harvest Moon rises tonight (Sept. 8), and even if you can't see it from your own backyard, you can still watch it live online.
08 September 2014, 01:53 PM ET
Big slabs of ice are sliding over and under each other within Europa's ice shell, a new study suggests. The Jovian satellite may thus be the only solar system body besides Earth to possess an active system of plate tectonics.
07 September 2014, 09:16 AM ET
Two new lava-spouting fissures opened overnight in Iceland, and NASA’s Terra satellite spied the hotspots from space.
05 September 2014, 07:50 AM ET
Robots built by students from around the world will face off in a competition designed to test how well these wheeled explorers might one day get around on the surface of Mars.
04 September 2014, 09:34 PM ET
This stunning space wallpaper shows a striking pair of wildly misaligned planet-forming gas discs around both the young stars in the binary system HK Tauri.
04 September 2014, 07:16 PM ET
An asteroid will make a close brush with Earth on Sunday, passing by the planet well inside the orbit of the moon.
04 September 2014, 06:54 PM ET
Satellites finally caught a view of Iceland's spectacular eruption from space.
03 September 2014, 11:55 PM ET
In this amazing space wallpaper from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile young stars huddle together against a backdrop of clouds of glowing gas and lanes of dust.
03 September 2014, 09:30 PM ET
The technology powering robotic arms in space could be used to perform minor surgeries for children on Earth.
03 September 2014, 09:59 AM ET
The 6.0-magnitude earthquake that rocked California's Napa Valley last month not only injured dozens of people and caused millions of dollars in damage, but it also warped the surface of Earth.
28 August 2014, 09:21 AM ET
The Holometer project, which is based at the U.S. Department of Energy's Fermi National Accelerator Laboratory (Fermilab) in Illinois, is now operating at full power, probing the very nature of space-time itself.
26 August 2014, 04:19 PM ET
Imagine an asteroid were hurtling toward Earth, with a 1-in-1,000 chance of hitting the planet. How would humanity respond to the news, and is there anything we could do about it?
21 August 2014, 08:00 PM ET
A Russian official claims that samples collected by cosmonauts show evidence of sea plankton on the outside of the International Space Station, news agencies are reporting.
21 August 2014, 09:31 AM ET
A tiny, clay-filled bubble found in a Martian meteorite boosts the chances that Mars was habitable for life.
20 August 2014, 12:54 PM ET
Boring through ½ mile rock-hard Antarctic ice, researchers discover a completely isolated community of microorganisms living in Subglacial Lake Whillans. The finding could be an analog for subsurface life on Mars, Europa, Enceladus and other worlds.
19 August 2014, 03:50 PM ET
Black holes are some of the strangest objects in the universe, and they typically fall into one of two size extremes: "small" ones that are dozens of times more massive than the sun and other "supermassive" black holes that are billions of times larger th
19 August 2014, 01:00 PM ET
NASA's decommissioned Rossi X-ray Timing Explorer (RXTE) satellite is still bearing fruit with the discovered of the object in the Messier 82 galaxy. The black hole (M82 X-1) weighs in at about 400 solar masses. Full Story: http://goo.gl/z2MBrk
14 August 2014, 06:20 PM ET
A NASA spacecraft has captured dust particles that scientists believe may come from interstellar space.
14 August 2014, 02:52 PM ET
Sometimes it’s a good thing for science equipment to sit around gathering dust: A NASA spacecraft designed to do just that has captured several specks that may be from interstellar space, researchers say.
12 August 2014, 08:40 PM ET
To capture celestial conjunctions, you only need a tripod and camera.