20 September 2014, 03:41 AM ET
Mercury will be at its greatest elongation from the sun on Sunday (Sept. 21). Because of the tilt of the Earth's axis, this will place it high above the horizon in the Southern Hemisphere, but too low to be observed in the Northern Hemisphere.
19 September 2014, 05:00 PM ET
The Royal Observatory Greenwich and BBC Sky at Night Magazine announced the winners of this year's astrophotography contest.
19 September 2014, 12:49 PM ET
Look toward the eastern sky during the predawn hours tomorrow, and, weather permitting, your eyes will immediately be drawn to the two brightest objects in the sky: the moon and Jupiter.
18 September 2014, 04:00 PM ET
A bright green aurora reflects off a glacial lake against the backdrop of a snow-covered mountain range in an incredible photo that took home first prize in an astrophotography competition.
18 September 2014, 10:42 AM ET
Volcanic eruptions can dramatically deepen the hue of lunar eclipses. But even with recent activity around the Pacific, the Oct 8th, 2014 passing of Earth's shadow is expected to be a normal coppery red.
17 September 2014, 10:50 AM ET
Spotting the Milky Way on dark, cloudless nights can be a challenge for anyone, but trying to see it through the haze of light pollution in a crowded city is nearly impossible.
17 September 2014, 12:05 AM ET
The Wide Field Imager (WFI) on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile captured this space wallpaper of dark cloud Lupus 4 blotting out background stars.
15 September 2014, 05:28 PM ET
Back-to-back eruptions on the sun sparked a geomagnetic storm last week, which generated dazzling auroras over the northern latitudes.
15 September 2014, 05:14 PM ET
Celestial sleuthing and art historical detective work could reveal when the Impressionist master Claude Monet painted his landmark work, "Impression, Sunrise" or "Impression, Soleil Levant" showing the hazy harbor of Le Havre, France.
15 September 2014, 11:14 AM ET
See amazing photos of the northern lights from early September 2014 sparked by two intense solar storms on Sept. 8 and 10. Amateur astronomers captured these stunning northern lights views.
14 September 2014, 10:38 AM ET
On these late-summer evenings after the sun has set, look low in the south for the classical Archer: the constellation Sagittarius.
14 September 2014, 12:06 AM ET
What was your favorite space news story of the last week?
13 September 2014, 11:19 AM ET
Chad Blakley (http://lightsoverlapland.com) captured a vibrant display of Northern Lights over Abisko National Park in Sweden on Sept. 12, 2014. They were generated by a KP-7 geomagnetic storm that hit Earth as a result of two coronal mass ejections.
13 September 2014, 10:51 AM ET
From a colorful map of Rosetta Probe's comet target to a video of a trash-filled spaceship's fiery demise, don't miss these amazing space images of the week for Sept. 13, 2014.
13 September 2014, 09:48 AM ET
From a brilliant Harvest Moon, to spectacular auroras, don't miss these amazing objects to watch in the night sky.
12 September 2014, 01:03 PM ET
Skywatchers on the ground are already catching sight of some amazing looking auroras produced by solar material blown out from the sun during two major eruptions this week.
11 September 2014, 04:36 PM 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, 07:00 AM 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.
11 September 2014, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in August 2014.
10 September 2014, 02:29 PM ET
As the moon moves in its orbit around the Earth, it inevitably passes in front of many stars and planet and Uranus will find itself in the moon's crosshairs tonight (Sept. 10).
09 September 2014, 11:21 AM ET
The full moon of September 2014 marked the Harvest Moon for the year. See amazing photos of the 2014 Harvest Full Moon sent in by stargazers in this Space.com gallery.
08 September 2014, 04:01 PM ET
The stars of the Milky Way shimmer in this amazing night sky view from New York's scenic Adirondack Park captured by a photographer after a long hike out to a secluded lake. Astrophotographer Corey Rondeau took this image on Aug. 20, 2014.
08 September 2014, 04:00 PM ET
A series of breathtaking planet views will appear in the September sky for stargazers interested in spotting them.
08 September 2014, 12:39 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.
07 September 2014, 12:46 PM ET
What was your favorite space news story of the last week?
07 September 2014, 07:00 AM ET
The full Harvest Moon will light up the night sky on Monday (Sept. 8), and this year it comes with a an extra bounty. September's full moon will cap a trio of back-to-back 'supermoons' for the Northern Hemisphere summer.
06 September 2014, 11:56 AM ET
From Comet Jacques to a coronal mass ejection, don't miss these amazing space images of the week for Sept. 6, 2014.
06 September 2014, 10:34 AM ET
The near-Earth asteroid 2014 RC is buzzing Earth this weekend and the Slooh Community Observatory and Virtual Telescope Project will provide live webcasts tonight (Sept. 6). Here's how to see them.
05 September 2014, 11:36 PM ET
Early-bird stargazers with clear weather on Saturday (Sept. 6) we will be treated to a striking celestial sight when the most brilliant planet in the night sky passes close to one of the brightest stars in the sky.
05 September 2014, 06:00 PM ET
Comet Jacques (C/2014 E2) made its closest approach to Earth on Aug. 28, 2014. It is bright enough to be visible in small telescopes and binoculars. See amazing photos of Comet Jacques as seen by stargazers in this Space.com gallery.
05 September 2014, 12:00 PM ET
Once every year or two, a comet appears in the sky that is bright enough to be seen with a small telescope or binoculars. Right now, observers anywhere in the Northern Hemisphere can see such a comet.
04 September 2014, 04:18 PM ET
Shining almost directly overhead as darkness falls these days is the brilliant star Vega, in the constellation of Lyra, the Harp. Vega is the fifth-brightest star in the night sky and the third-brightest visible from midnorthern latitudes.