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06 October 2015, 10:24 AM ET
Blue Origin said Sept. 30 that it has completed more than 100 developmental tests of its BE-4 engine, which the company is building both for ULA and itself.
06 October 2015, 10:20 AM ET
In life, astronaut Sally Ride privately put into order her personal objects, artifacts, awards and papers, which will now forever represent her as America's first woman in space in the National Air and Space Museum.
06 October 2015, 10:10 AM ET
irgin Galactic announced Sept. 28 it has made “significant progress” on the engines that it will use on its LauncherOne small satellite launch vehicle.
06 October 2015, 08:12 AM ET
Why do pulsars, one of the universe's most reliable clocks, occasionally speed up? A new theory suggests there's a perfectly flowing fluid at the heart of this mystery.
06 October 2015, 08:12 AM ET
Space.com sat down with Grace Potter prior to her performance at New York's Radio City Music Hall on Saturday (Oct. 3) to discuss her cosmic influences, which shined through not only in our interview but on stage as well.
06 October 2015, 08:00 AM ET
Arizona-based World View Enterprises aims to start launching paying customers to the stratosphere in 2017 beneath a giant balloon, for $75,000 per seat.
06 October 2015, 08:00 AM ET
NASA's Mars Reconnaissance Orbiter has photographed a plain called Acidalia Planitia and the southwest corner of the 285-mile-wide Schiaparelli Crater, the landing sites of the Ares 3 and Ares 4 missions, respectively, in the "The Martian
05 October 2015, 06:10 PM ET
If only "The Martian" knew: There's a faster way to get a supply ship to Mars.
05 October 2015, 05:41 PM ET
The grammy-nominated singer-songwriter talks to Space.com about her hit song "Stars" and the inspiration behind designing a cosmic-themed wardrobe for her new solo record "Midnight" and latest tour in support of it.
05 October 2015, 05:33 PM ET
The Straight to Ale brewery, located in Huntsville, Alabama, home to NASA's Marshall Space Flight Center, incorporates NASA history into many of its beers.
05 October 2015, 05:28 PM ET
A Martian atmosphere thick enough to allow constantly flowing water may have been lost to space rather than trapped by surface rocks, according to a recent study.
05 October 2015, 05:15 PM ET
Here's a guide for October skywatchers: First catch Saturn, then Jupiter, Mars and Venus, and finally Mercury in the night sky as this month's planetary parade begins.
05 October 2015, 05:00 PM ET
Find out what's up in your night sky during October 2015 and how to see it in this Space.com stargazing guide.
05 October 2015, 05:00 PM ET
See what's up in the night sky for October 2015, including stargazing events and the moon's phases, in this Space.com gallery courtesy of Starry Night Software.
04 October 2015, 09:29 AM ET
The Slooh Community Observatory will host a free webcast tonight, Oct. 4, to discuss the new film "The Martian" and Mars exploration. You can watch it live here at 7 p.m. ET, courtesy of Slooh.
03 October 2015, 09:59 AM ET
There's water on Mars, a resupply spaceship at the International Space Station, a science-heavy survival novel on the big screen and something moving inside Saturn. These are our best space stories of the week.
03 October 2015, 07:30 AM ET
For a long five and a half years, Comet 67P's southern side has been shrouded by darkness. Now, it's coming into the light, and new microwave images, taken before the big reveal, suggest that the comet's "dark side" may have a very unusual composition.
03 October 2015, 07:00 AM ET
Slowly but surely, Curiosity is making its way up the mountain, and the new photo — which was taken on Sept. 9 but just released Friday (Oct. 2) — shows some of the terrain the robot will investigate in the future.
03 October 2015, 12:13 AM ET
Hurricane Joaquin, a Category 4 storm that is currently battering the central Bahamas, appears to be replacing its eye, according to weather forecasters.
02 October 2015, 08:54 PM ET
From the discovery of water on Mars to stunning reader images of the Supermoon eclipse, don't miss these amazing space images.
02 October 2015, 03:22 PM ET
United Launch Alliance, a joint venture of aerospace giants Boeing and Lockheed Martin, now has a 100 percent success rate on 100 rocket launches since its formation in 2006.
02 October 2015, 02:52 PM ET
A NASA spacecraft makes more than just a cameo appearance in "The Martian," Ridley Scott's new movie about an astronaut alone and stranded on Mars. Mission leaders help fact check the movie's replica of the historic Mars lander.
02 October 2015, 07:55 AM ET
NASA has been helping promote the new film "The Martian," which hits theaters across the United States today (Oct. 1), as a way to publicize its own plans to send astronauts to the Red Planet in the 2030s.
02 October 2015, 07:50 AM ET
A planet with liquid water on the surface and titanium oxide deposited by meteors could produce oxygen in the atmosphere without the need for life.
02 October 2015, 07:50 AM ET
In honor of Oktoberfest, we taste-tested beer made from moon dust and space yeast. Plus, we made suggestions for space-themed beers.
02 October 2015, 07:43 AM ET
Movies adapted from successful books don't always capture the magic of the original text but the upcoming film does a surprisingly good job conjuring the book's spirit.
01 October 2015, 06:55 PM ET
Russia's uncrewed Progress 61 freighter docked with the space station at 6:52 p.m. EDT today (Oct. 1), 6 hours after blasting off. The cargo vessel is stocked with more than 3 tons of food and supplies for the astronauts aboard the orbiting lab.
01 October 2015, 06:10 PM ET
As Hurricane Joaquin barrels across the Atlantic Ocean, NASA satellites are tracking the storm to determine how it will affect residents along the East Coast of the United States.
01 October 2015, 05:59 PM ET
From the Moon, to Auroras, to the Zodiacal Light and more, NASA's Jet Propulsion Laboratory counts down their favorites for October in their 100th 'What's Up' episode.
01 October 2015, 05:36 PM ET
The storm, which was upgraded to Category 4 on Oct. 1st, 2015, was captured by the NOAA Goes-East satellite. Images from September 29th to October 1st have been compiled and looped.
01 October 2015, 04:33 PM ET
The satellites — the first of two Sky Muster Ka-band broadband satellites for Australia’s NBN Co. and the Arsat-2 Ku- and C-band telecommunications satellite for Arsat of Argentina — were both reported by their owners to be healthy in orbit and sending si
01 October 2015, 04:29 PM ET
The new photos were captured by NASA's New Horizons spacecraft during its historic flyby of Pluto on July 14. Mission team members combined some of the images into a new video that lets viewers fly over Charon's tortured surface.