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05 January 2015, 07:29 PM ET
SpaceX will try to bring the first stage of its Falcon 9 rocket back to Earth for a precision landing on a floating platform Tuesday morning. But there's no guarantee the ambitious maneuver will work.
05 January 2015, 06:43 PM ET
In the largest image taken of the galaxy by the space telescope, stars and thousands of star clusters can be seen "embedded in a section of the galaxy’s pancake-shaped disc." The image encompasses over 40,000 light years.
05 January 2015, 06:03 PM ET
The famous feature of the Eagle Nebula has been revisited by the space telescope. It has delivered an incredible infrared light image to go along with new visible light imagery.
05 January 2015, 05:48 PM ET
Researchers from the Harvard-Smithsonian Center for Astrophysics (CfA) are developing a 'clock' to decipher stellar age from their spin.
05 January 2015, 03:55 PM ET
Engineers have found a way to buy some time for the MESSENGER spacecraft, which was due to end its four-year mission in March with a suicidal plung
05 January 2015, 03:04 PM ET
Early-bird skywatchers along the eastern United States have an opportunity, weather permitting, to see the private spaceflight company SpaceX launch a robotic Dragon capsule to the International Space Station before dawn on Tuesday (Jan. 6).
05 January 2015, 01:57 PM ET
Alien worlds more massive than Earth could harbor long-lasting oceans, according to new research. Scientists have used computer modeling to show that so-called 'super-Earth' planets.
05 January 2015, 01:42 PM ET
Skywatchers will be treated to a fascinating ballet of the so-called Galilean moons throughout the month, as the satellites pass one another, sometimes blocking (occulting) or casting shadows (eclipsing) and casting shadow onto Jupiter’s cloud tops.
05 January 2015, 12:00 PM ET
The twin Voyager probes have been discovered ... in the year 3300 AD.
05 January 2015, 11:48 AM ET
An highly active sun encouraged photographer Chad Blakley (lightsoverlapland.com) to capture the Northern Lights from two different vantage points in Abisko National Park on Dec. 28th, 2014.
05 January 2015, 11:00 AM ET
Scientists have cooked up a stunning new simulation of the universe that captures the wide variety of galaxies we see in the universe.
05 January 2015, 10:24 AM ET
The newfound Comet Lovejoy (C/2014 Q2) is amazing stargazers in telescope views. See photos of Comet Lovejoy in this gallery of images sent in to Space.com by amateur astronomers.
05 January 2015, 09:49 AM ET
Becquerel crater, in the Red Planet's Arabia Terra region harbors sulphate-bearing deposits, likely left behind by flowing water. Darker areas are dust that blew in from the north. ESA’s Mars Express HRSC took the images used to make this animation.
05 January 2015, 07:00 AM ET
SpaceX will try to land the first stage of its Falcon 9 rocket on a floating platform in the Atlantic Ocean, shortly after the booster launches SpaceX's Dragon cargo capsule from Cape Canaveral Air Force Station at 6:18 a.m. EST Tuesday.
05 January 2015, 07:00 AM ET
This spectacular image is of the newfound Comet Lovejoy taken just before the new year. Astrophotographer Justin Ng took the image from Singapore on Dec. 29, 2014.
04 January 2015, 10:07 AM ET
Mercury and Venus will dazzle skywatchers this January. Check out Space.com to find out when and where to see this month's best skywatching events.
04 January 2015, 08:00 AM ET
A huge meeting of space scientists kicks off today in Seattle, Washington, as thousands of attendees descend on the coastal city.
03 January 2015, 09:30 AM ET
The private space travel company Virgin Galactic is more committed than ever to its commercial spaceliner business as it recovers from a tragic SpaceShipTwo crash that killed one test pilot and injured another last year, company founder Sir Richard Branso
03 January 2015, 09:12 AM ET
Streaks of red light paint the New Year's Eve night sky in this gorgeous image from photographer Miguel Claro.
03 January 2015, 08:55 AM ET
The 2015 Quadrantid meteor shower peaks tonight (Jan. 3), but the bright moonlight may outshine these dazzling 'shooting stars.' Here is how to see the annual Quadrantids.
02 January 2015, 03:11 PM ET
Currently hovering very low in the southwest twilight sky near the setting sun these evenings is the most brilliant of the planets: Venus. And in the New Year, this planet will truly shine.
02 January 2015, 01:57 PM ET
The 'Zero Gravity Day' hoax currently spreading on the Internet was actually an April Fools' Day joke told in 1976.
02 January 2015, 01:23 PM ET
See amazing, and sometimes hilarious, photos of fun in weightlessness in these zero gravity photos on airplanes and spacecraft.
02 January 2015, 12:37 PM ET
Cosmonaut Boris Morukov, a physician and researcher who flew on a U.S. space shuttle to the International Space Station and led a 520-day simulated mission to Mars, died on Jan. 1. He was 64.
02 January 2015, 07:00 AM ET
A recent Search for Extraterrestrial Intelligence (SETI) effort studied 86 candidates in the Kepler space observatory's field for radio signals that could potentially indicate the presence of an intelligent civilization.
02 January 2015, 07:00 AM ET
How habitable was Mars in the past, and does it have signs of life? This is part of what Mars 2020, a successor to Curiosity, will examine when it arrives on Mars.
01 January 2015, 07:00 AM ET
Stargazers can start the New Year off with a bang this weekend as the first meteor shower of 2015 reaches its peak on Saturday night (Jan. 3). Here's how to see the 2015 Quadrantid meteor shower.
01 January 2015, 12:30 AM ET
The six astronauts onboard the International Space Station will ring in the New Year floating 240 miles above the Earth.
01 January 2015, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in December 2014.
31 December 2014, 01:50 PM ET
The vast majority of people who want to fly to suborbital space and back are medically fit to do so, according to researchers at Virgin Galactic, which is developing the commercial spaceliner SpaceShipTwo.
31 December 2014, 12:22 PM ET
'Interstellar' star Jessica Chastain isn't content to explore the universe just on the silver screen. The actress appears in a new NASA video hailing the agency's efforts in space science and exploration.
31 December 2014, 11:50 AM ET
The Geminids come from an asteroid, 3200 Phaethon, but scientists are still trying to figure out exactly how it sheds enough debris to produce the bright meteor shower.