28 August 2015, 07:00 AM ET
The Syfy network's space-based TV series "Dark Matter" wraps up tonight (Aug. 28) with back-to-back episodes and a shocking revelation.
27 August 2015, 07:00 AM ET
The "Mars Hoax" has been popping up every Aug. 27 since 2003, when it was born in a widely misinterpreted email. The sender of that message was trying to get people excited about an unusually close approach of Mars to Earth in late August 2003.
26 August 2015, 02:04 PM ET
The full moon this Saturday (Aug. 29) will look especially big in the sky, because the moon will be exceptionally close to Earth.
25 August 2015, 05:00 PM ET
The Milky Way forms a spectacular streak past the curving edge of an observation tower in the Great Smoky Mountains National Park in these amazing views by a talented astrophotographer, who likened the vista to the Jetsons' cartoon futurescape.
24 August 2015, 01:50 PM ET
Skywatcher Stephen Ippolito captured this image of a harbor seal and the Milky Way while stargazing at Sand Beach in Acadia National Park in Maine.
24 August 2015, 12:35 PM ET
Watch the Milky Way rise above the King Range in California in this breathtaking time-lapse sequence.
22 August 2015, 08:33 PM ET
If the weather is clear in your area on tonight (Aug. 22), you'll have an opportunity to see what probably are for most people, the two most popular objects to look at through a telescope: Saturn and the moon.
22 August 2015, 09:00 AM ET
See how photographer Stephen Ippolito captured this amazing view from from Bell Rock in Sedona, Arizona.
21 August 2015, 07:18 PM ET
When the sun sets in the King Range National Conservation Area in far northern CA Coast, the stars really do come out. Watch the Milky Way arc across the sky high above the Pacific fog.
21 August 2015, 06:14 PM ET
Two years from today, on Aug. 21, 2017, North Americans will get an opportunity to observe nature's greatest sky show: a total solar eclipse that will cross the entire continent.
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.
19 August 2015, 05:40 AM ET
On Thursday morning (Aug. 20), skygazers will get a special treat, when the planet Mars appears in the midst of hundreds of stars: the open star cluster known as the Beehive, Praesepe, or Messier 44.
18 August 2015, 10:00 AM ET
Astrophotographer Adam Woodworth took this image of an aurora from Norstead, a Viking village replica.
18 August 2015, 07:41 AM ET
The infamous Mars Hoax that has circulated widely through the Internet since its first appearance in 2003 — when it originated
17 August 2015, 03:50 PM ET
This stunning image of a purple and gold aurora was taken by Jason Matias at the Wild Horses Monument on the Columbia River Gorge in Washington.
17 August 2015, 01:00 PM ET
Bow, arrow, milk ladle or teapot — the constellation called the Archer appears as many things besides, and you can find it down near the southern horizon this week.
14 August 2015, 05:53 PM ET
It's not too late to catch a meteor.
14 August 2015, 07:00 AM ET
Daily sunspot counts going back 400 years have been revisited by scientists who say the numbers aren't quite right, suggesting solar activity has not varied as wildly as previously thought.
13 August 2015, 12:45 PM ET
The moon posed no obstacle as the Perseid meteor shower peaked last night, giving skywatchers the best views of shooting stars in years — even in areas that normally have too much light to see a thing. And the show will be back on tonight, although there
13 August 2015, 09:00 AM ET
The 2015 Perseid meteor shower reached its peak on Aug. 12 and 13, offering a dazzling display for those with clear weather to see it. See photos of the Perseids here by skywatchers.
13 August 2015, 08:30 AM ET
The Perseids meteor shower arises out of the debris of Comet Swift-Tuttle, which last made a pass by Earth in 1992.
13 August 2015, 08:30 AM ET
Watching a meteor shower on a clear, dark night is an unforgettable experience.
12 August 2015, 03:56 PM ET
For many skywatchers across the United States, clear skies and a dark moon will create optimal viewing conditions for tonight's Perseid meteor shower. Clouds will obscure viewing conditions in some areas, however.
12 August 2015, 03:30 PM ET
Photographer Jeffrey Berkes took this image from Cannon Beach in Oregon around the Haystack Rock Bird Sanctuary.
12 August 2015, 06:55 AM ET
The potentially dazzling Perseid meteor shower will reach its peak in the overnight hours tonight, and you can watch it live online courtesy of NASA if weather spoils your view. Here's how to watch it online
11 August 2015, 03:46 PM ET
More than 6,000 'Star Trek' fans are now part of a giant online tribute to Leonard Nimoy, who played the Vulcan alien Spock on the famed series.
11 August 2015, 08:13 AM ET
The Perseid meteor shower is the most widely observed and dependable annual meteor display of the year, and its peak this week has all the earmarks of being an excellent example of celestial fireworks, weather permitting.
10 August 2015, 12:19 PM ET
This stunning image of the Millky Way was taken over Mt. Manaslu in the Himalayas. Mumbai-based amateur astrophotographer, Kuntal A. Joisher, took this image in fall of 2014 during a trek on the mountain.
10 August 2015, 11:11 AM ET
The Milky Way arcs above a spotlight-illuminated house in a beautiful new space photograph by 'astro-paparazzi' David Martin of Virginia. See how he made the photo here.
09 August 2015, 07:01 AM ET
The annual Perseid meteor shower will reach its peak this week on Wednesday (Aug. 12) and Thursday (Aug. 13), giving amateur skywatchers an evening show.
08 August 2015, 08:58 AM ET
From an incredible photo of the moon crossing Earth's face to a new view of the dwarf planet Cere's mysterious bright spots, don't miss these amazing space images.