15 July 2014, 12:06 AM ET
A comet-galaxy conjunction is a rare opportunity for amateur astronomers.
11 July 2014, 03:43 PM ET
You might want to step outside tomorrow night (July 12), when a bulging "supermoon" will rise in the evening sky. The event coincides with Manhattanhenge, when the setting sun will align along the east-west streets in the grid of Manhattan.
11 July 2014, 12:19 AM ET
This space wallpaper is an artist's illustration showing one of three newly discovered planets in the star cluster Messier 67. Image released Jan. 15, 2014.
09 July 2014, 03:11 PM ET
Two satellite images show how the Brazilian city of Sao Paulo has grown over two decades, with spreading suburbs and new ring roads.
08 July 2014, 12:01 PM ET
The huge swirling storm was captured from space by a NASA satellite on July 7, as it churned toward Okinawa.
08 July 2014, 07:29 AM ET
A hotspot of ultrahigh-energy cosmic rays has been found in the vicinity of the Big Dipper, though the source of the rays remains a mystery.
08 July 2014, 02:10 AM ET
This new Hubble image shows a cosmic creepy-crawly known as the Tarantula Nebula in infrared light. This region is full of star clusters, glowing gas, and thick dark dust. Image released Jan. 9, 2014.
07 July 2014, 03:30 PM ET
Water could have flowed on the surface of Mars with the help of salts in the Martian soil that can melt ice, just as salts on Earth can be used to melt ice on slippery winter roads and sidewalks, researchers say.
06 July 2014, 02:33 PM ET
Researchers have figured out a new way to predict which rivers are most at risk of dangerous flooding.
02 July 2014, 07:49 PM ET
Tropical Storm Arthur appears menacing as it bears down on the coast of Florida, in this photo captured today (July 2) by astronauts aboard the International Space Station.
01 July 2014, 05:23 PM ET
Sailing the soupy atmosphere of Titan, Saturn's largest natural satellite, an interplanetary balloon could one day release a small drone to explore the moon's swamp-like surface.
27 June 2014, 08:31 AM ET
A strange meteorite from Sweden is a new kind of space rock never before seen on Earth, a study reports. The baseball-sized gray blob could be the long-sought "other half" of an asteroid belt collision 470 million years ago.
26 June 2014, 11:46 PM ET
This fascinating space wallpaper is an artist's concept of the MWC 656 system, which consists of a massive "Be" star and a companion black hole.
23 June 2014, 07:14 PM ET
A student-led project aims to send a time capsule to Mars for future explorers to discover, its organizers announced today (June 23).
23 June 2014, 12:59 PM ET
City lights, the aurora, the moon and a beautiful blue glow from the atmosphere create a gorgeous show in a new astronaut photograph of Russia.
23 June 2014, 09:31 AM ET
NASA Cassini mission images from July 2013 of Titan's Ligeia Mare region show an island that was not there in previous imagery. What could it be?: http://goo.gl/f0hNPs
23 June 2014, 12:24 AM ET
This space wallpaper is a Hubble image showing the scatterings of bright stars and thick dust that make up spiral galaxy Messier 83, otherwise known as the Southern Pinwheel Galaxy.
22 June 2014, 01:06 PM ET
Saturn's largest moon Titan, dotted with hydrocarbon lakes and covered in a hazy atmosphere, comes to life in these stunning images captured by instruments aboard NASA's Cassini spacecraft.
22 June 2014, 01:00 PM ET
Scientists find the first hint that Titan's methane and ethane lakes may be stirring in response to the summer warmth, similar to lakes on Earth.
21 June 2014, 09:02 AM ET
The night sky never looked so inviting. From light rays framing the Big Dipper above the Alps to the eerily stunning aurora hovering atop Norway, the winners of a dark skies photo contest delight with their upward gazes.
19 June 2014, 02:28 PM ET
In 2013, astronomers became aware the center of galaxy NGC 5548 had seemingly gone dark. Astrophysicist Jelle Kaastra and team now think they know why: a stream of obscuring gas blown by the action of the central supermassive black hole.
19 June 2014, 02:27 PM ET
Explosives were detonated at the top of a mountain in northern Chile today (June 19) to begin clearing the way for the biggest optical telescope in the world.
19 June 2014, 08:13 AM ET
A mountain in northern Chile's remote Atacama Desert is about to get its top blown off to make way for the biggest optical telescope in the world.
18 June 2014, 11:10 PM ET
Enormous telescopes are in development, and if the Hubble Space Telescope's legacy is any indication, their results will transform astronomy.
18 June 2014, 02:18 PM ET
The 'guitar god' expresses his displeasure with the sorry state of Humanity’s reach into the cosmos. 'Satch' likens space tourism flights to bad airline experiences and muses upon transporter beam practicality.
17 June 2014, 12:24 AM ET
Capturing Venus pass before the sun is a rare sight that, if you missed it, you may not live to see.
16 June 2014, 08:05 AM ET
Earth's most abundant mineral lies deep in the planet's interior, sealed off from human eyes. Now, scientists for the first time have gotten a glimpse of the rock enclosed inside a 4.5-billion-year-old meteorite. Its new name: bridgmanite.
13 June 2014, 05:22 PM ET
A Space.com reader sent in an intriguing view of the Milky Way over Evans Bay in Wellington, New Zealand.
13 June 2014, 04:47 PM ET
Astrophotographer Brian Drourr took this image on June 8, 2014 from Champlain Valley, Vermont. See how he captured the aurora view here.
12 June 2014, 10:39 AM ET
For East Coasters, Friday the 13th brings a full moon, the lowest in the sky of the year. But put away your lucky charms: Neither Friday the 13th nor full moons are any cause for fear.
12 June 2014, 08:49 AM ET
From the star dunes of Algeria to airglow above Australia, here's a look at the countries competing in the 2014 World Cup in these images taken from space.
11 June 2014, 06:19 PM ET
The sun has unleashed three powerful solar flares over the past two days, and the effects of these eruptions could hit Earth this Friday the 13th — but don't worry, space weather reports show there's no cause for alarm.