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21 September 2015, 05:25 PM ET
Could genes determine what makes a good astronaut? How does spaceflight impact the human genome? The one-year mission aboard the International Space Station may start unearthing answers.
21 September 2015, 04:46 PM ET
Last weekend, astronaut Scott Kelly answered questions on Twitter about life in space, including how astronauts bathe, do laundry and exercise, and how he's liking his one-year stay in orbit.
21 September 2015, 04:30 PM ET
The new Pluto animation stitches together images captured by NASA's New Horizons spacecraft during its historic flyby on July 14, which returned the first-ever up-close looks at the faraway dwarf planet.
21 September 2015, 01:30 PM ET
Space travelers don't have to dream of flying, but Cosmonaut Mikhail Kornienko, up on the International Space Station, revealed his own bad dream of missing the flight back to space in a new video interview.
21 September 2015, 09:43 AM ET
Actress Nichols recently rode a promotional flight on NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA), a modified Boeing 747SP aircraft equipped with a large infrared reflector telescope.
21 September 2015, 06:53 AM ET
With a week until the huge supermoon lunar eclipse, it's time to dust off your small telescopes and binoculars, track down an observatory event or webcast, or draft your invitations for a moon-cake party.
21 September 2015, 06:30 AM ET
Scientists are developing a mission concept that would send a probe flying through the plume created by the 100-odd geysers erupting from the south polar region of Saturn's ice-covered moon Enceladus.
20 September 2015, 04:37 PM ET
Jeff Bezos announced a new home for Blue Origin and NASA astronaut Scott Kelly reflected on having six more months in orbit. This is our roundup of the best space stories of the week, for Sept. 18, 2015.
19 September 2015, 12:30 PM ET
A new personalized children's book will take a trip to the International Space Station bearing the name of one lucky child on Earth.
18 September 2015, 11:06 PM ET
From a partial solar eclipse to a new view of Pluto, don't miss these amazing space images.
18 September 2015, 04:51 PM ET
The capsule that launched the first woman into space, the most complete Soviet lunar lander still in existence and the 80-year-old drawings of a rocket pioneer are among the more than 150 rare Soviet-era space relics now on public display in London.
18 September 2015, 04:41 PM ET
Images from the NASA New Horizons probe's September 11th, 2015 download were "stitched together and rendered on a sphere" by the mission team.
18 September 2015, 03:18 PM ET
Filmmakers Wylie Overstreet and Alex Gorosh, creators of 'To-Scale: The Solar System', explains how they were able to achieve the never-before-done feat in 36 hours of shooting.
18 September 2015, 03:07 PM ET
Filmmakers Wylie Overstreet and Alex Gorosh created a time-lapse video all the solar system planets and the Sun, in the proper configuration, on 7 miles of dry lakebed.
18 September 2015, 01:51 PM ET
An unusual star pattern denoting an exceedingly unusual beast will be visible in the night sky this week — the sea goat.
18 September 2015, 01:23 PM ET
If the weather is clear this evening, skywatchers will get to see two of the most popular objects to view through a telescope: the moon and Saturn.
18 September 2015, 12:33 PM ET
The Eagle has landed, again. An Apollo Lunar Module was moved to the National Air and Space Museum's "Boeing Milestones of Flight Hall," re-opening in July 2016.
18 September 2015, 11:35 AM ET
The first human base on Mars will most likely run on nuclear power. The Radioisotope Thermoelectric Generator aboard the Curioisity rover is too small to generate the power needed to sustain the lives of many explorers.
18 September 2015, 10:25 AM ET
To convincingly present his film’s portrayal of the planet, Sir Ridley Scott has become intimate with Mars. He here lends his voice to a NASA-scripted promotional video about the agency’s exploration plans.
18 September 2015, 09:29 AM ET
A series of four total lunar eclipses in a row is called a tetrad, or four Blood Moons. See how lunar eclipse tetrads work in this Space.com infographic.
18 September 2015, 09:25 AM ET
Total solar eclipses are one of nature’s grandest events. What is a total solar eclipse? How do they work? And when is the next one? We explain.
18 September 2015, 09:00 AM ET
Lunar eclipses occur when Earth's shadow blocks the sun. There are three types; the most dramatic is a total lunar eclipse. Find out when is the next one.
18 September 2015, 09:00 AM ET
Astronomers use many terms to describe what happens during an eclipse, and this glossary shows some of the more common things they say.
18 September 2015, 07:52 AM ET
Galaxies in the local universe show no signs of advanced alien civilizations — for now.
18 September 2015, 07:51 AM ET
Halfway through his 342-visit to the ISS, astronaut Scott Kelly talks about what he's looking forward to, and what he misses.
18 September 2015, 07:38 AM ET
"Optical mining" could allow huge amounts of asteroid water to be tapped, advocates say. This water, in turn, could provide relatively cheap and accessible propellant for voyaging spacecraft, lowering the cost of spaceflight significantly.
18 September 2015, 07:27 AM ET
Learn what makes a big full moon a true 'supermoon' in this SPACE.com infographic.
18 September 2015, 07:00 AM ET
NASA has been overly optimistic about its manned Red Planet plans in the past. But the agency's current goal of getting astronauts to Mars by the end of the 2030s is eminently achievable, NASA chief Charles Bolden said.
17 September 2015, 06:54 PM ET
Backlit by sunset over Pluto, NASA's New Horizon's probe captured rugged ~11,000ft (3,350m) mountains and wide glaciers of nitrogen ice. To quote Principal Investigator Alan Stern: "Pluto is surprisingly Earth-like...and no one predicted it."
17 September 2015, 05:14 PM ET
In a new video, an enormous cluster of sunspots rotates across the sun's face before gradually separating into several distinct groups, which also fired off a bunch of solar flares.
17 September 2015, 04:53 PM ET
Express AM8 is owned by the RSCC of Moscow, which has suffered from Proton’s error-prone record in the past six years more than any other company.
17 September 2015, 04:37 PM ET
The photo, which New Horizons took during its epic July 14 flyby of Pluto, captures a sunset view. Towering ice mountains cast long shadows, and more than a dozen layers of the dwarf planet's wispy atmosphere are clearly visible.