30 September 2013, 10:03 AM ET
Comet ISON could shine brightly in the night sky around the time of its close solar approach on Nov. 28. Here's the lowdown on ISON and its journey through the inner solar system, which scientists are already tracking with a variety of instruments.
30 September 2013, 09:23 AM ET
“Winner” of the “Our Solar System” category in the Royal Observatory Greenwich’s Astronomy Photographer of the Year 2013 exhibition, this space wallpaper gives the viewer a window onto the elusive outer atmosphere of the Sun — the corona.
30 September 2013, 12:00 AM ET
NASA's bold asteroid-capture mission may not end when astronauts leave the space rock for the last time. Seeing it through could require disposing of the asteroid in a safe — and possibly very dramatic — manner, experts say.
29 September 2013, 09:25 AM ET
What was your favorite space news story of the last week?
28 September 2013, 12:22 PM ET
From a stunning view of the Milky way to the harvest moon, don't miss these stunning night sky photos by stargazers and SPACE.com readers.
28 September 2013, 11:06 AM ET
From a supersonic shockwave to the glowing harvest moon, don't miss these amazing space photos of the week for Sept. 28, 2013.
28 September 2013, 07:07 AM ET
The map marks the clearest view yet of the Milky Way's central region, a huge cloud of 10,000 million stars. The peanut-shaped bulge puts the Milky Way well within normal galactic expectations for a barred spiral galaxy.
27 September 2013, 06:33 PM ET
Fewer than 600 of NASA's 18,000 or so employees would likely keep working through a shutdown — the minimum needed to help ensure the safety of human life and the protection of property, according to a plan the space agency submitted to the Office of Manag
27 September 2013, 05:00 PM ET
New photos show stars at the heart of the Milky Way that have never been seen before.
27 September 2013, 03:37 PM ET
The Canadian satellite carries two payloads. 1. ePOP: suite of instruments for research on the effects of phenomena such as solar storms in the upper polar atmosphere. 2. Cascade: will demonstrate a high-capacity digital courier system.
27 September 2013, 12:47 PM ET
A toxic chemical in Martian dirt may obscure scientists' search for extraterrestrial life. Perchlorates on the Red Planet may cause reactions in Curiosity's soil samples that destroy organic compounds, researchers say.
27 September 2013, 11:57 AM ET
Is the moon a present from Venus, which once had a moon and then lost it? A wild new theory puts the scenario out there.
27 September 2013, 11:50 AM ET
According to models, temps and precip. will change dramatically over the next 87 years, with amounts varying per location. Worldwide land area temperatures are predicted to increase, along with areas of heavier and decreased precipitation.
27 September 2013, 11:10 AM ET
“Winner” of the Robotic Scope category in the Royal Observatory Greenwich’s Astronomy Photographer of the Year 2013 exhibition, this space wallpaper beautifully reveals the great Orion Nebula.
27 September 2013, 06:01 AM ET
The possible "comet of the century," Comet ISON could either become a shining visual treat or a fizzled out chunk of rock and ice when it makes its close pass of the sun, but which will it be?
26 September 2013, 09:00 PM ET
Four of the five main databases that catalog exoplanet discoveries now list more than 900 confirmed alien worlds, and two of them peg the tally at 986 as of today (Sept. 26). So the 1,000th exoplanet may be spotted in a matter of days or weeks.
26 September 2013, 05:49 PM ET
The new shockwave video is the work of scientists at NASA's Dryden Flight Research Center in California, who aim to reduce the intensity of aircraft sonic booms and thereby make commercial supersonic flight over land more feasible.
26 September 2013, 05:04 PM ET
Mars has water trapped in the polar ice caps. More water may lie just beneath the surface.
26 September 2013, 05:01 PM ET
Water on Mars has long been sought after by researchers.
26 September 2013, 03:30 PM ET
Among the more than 900 planets found beyond our solar system, there are volcanic Super-Earths, gas giants that dwarf Jupiter and worlds with multiple sunsets. Here are some of the most incredible.
26 September 2013, 02:57 PM ET
A colossal NASA balloon is poised to carry a free-hanging gondola sky-high on a mission to take a gander at celestial grandeur: Comet ISON.
26 September 2013, 02:01 PM ET
Future Mars explorers should be able to get all the water they need out of the red dirt beneath their boots, a new study suggests. NASA's Mars rover Curiosity has found that surface soil on the Red Planet contains about 2 percent water by weight.
26 September 2013, 02:01 PM ET
Scientists have discovered the powerhouse for the cosmic storms in Earth's magnetic field that fuel the planet's dazzling displays of northern lights. The findings could help predict dangerous space weather storms.
26 September 2013, 01:46 PM ET
As the Moon passes through Earth's magnetic field, two lunar-orbiting spacecraft look for turbulence, particle acceleration, and magnetic reconnection. These phenomena control how the solar wind interacts with Earth's magnetosphere.
26 September 2013, 10:23 AM ET
“Highly Commended” by the Royal Observatory Greenwich’s Astronomy Photographer of the Year 2013 exhibition, this amazing space wallpaper is a composite shot showing the progress of an annular eclipse in May 2013.
26 September 2013, 07:30 AM ET
A group of renowned scientists, engineers, artists and others need your help to send a message into the universe aboard a spacecraft bound for Pluto.
25 September 2013, 04:09 PM ET
The densest galaxy known may have been found by combining data from NASA's Hubble and Chandra X-ray space observatories, plus several land-based telescopes. The galaxy, known as M60-UCD1 is about 54 million light years from our own.
25 September 2013, 01:54 PM ET
The 24 awardees represent a diverse group of scientists, artists, writers, academics and activists. Seager was selected for her groundbreaking exoplanet research, which has led to ever-better models of the atmospheres and interiors of alien worlds.
25 September 2013, 01:01 PM ET
A perplexing fast-spinning star just might be the 'missing link' in a long-standing pulsar mystery, scientists say. A newfound neutron star 18,000 light-years from Earth alternates between two kinds of pulsars in a never-before-seen discovery.
25 September 2013, 01:01 PM ET
Io is the most volcanically active object in the solar system, dissipating its massive stores of internal heat via intense eruptions. Earth may have gone through a similar phase in its youth, before the planet cooled enough for plate tectonics to start up
25 September 2013, 06:03 AM ET
A new camera named ArTeMIS was installed on the Atacama Pathfinder Experiment (APEX) telescope in Chile. It returns imagery in millimetre and submillimetre wavelengths and can expose light from dense clouds of interstellar dust grains.
25 September 2013, 06:00 AM ET
An amazing image taken by a new camera on a telescope in the Southern Hemisphere shows a colorful and detailed view of a star-forming region of the Milky Way.