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19 October 2015, 05:41 PM ET
SpaceX on Oct. 16 said it had changed its return-to-flight plans and would first launch 11 small Orbcomm messaging satellites into low Earth orbit, and then test reignition of the redesigned second-stage engine during the same flight.
19 October 2015, 05:34 PM ET
Are we the only intelligent life in the universe? Here's how we intend to find out.
19 October 2015, 05:20 PM ET
Even the most active, take-on-the world people have days when they just don't want to get out of bed. But that probably won't be the case for 12 men who agreed to spend 60 days and nights lying in a bed for science.
19 October 2015, 03:19 PM ET
The Mangala Valles outflow channel system on Mars, close to the Minio Valles, has been prone to prone to severe flooding episodes. These events were likely prompted by geologic activity such as volcanic eruptions in the neighboring Tharsis region.
19 October 2015, 02:35 PM ET
A gorgeous example of a phenomenon known as "light pillars" was captured in this breathtaking scene over Provincia de Buenos Aires, Argentina by astrophotographer Sergio Emilio Montúfar Codoñer.
19 October 2015, 02:11 PM ET
NASA’s new website for its Deep Space Climate Observatory (DSCOVR) mission will be updated daily with images captured 12 to 36 hours prior. 22 Images from Oct. 17th, 2015 ave been compiled to show one full rotation. (looped several times)
19 October 2015, 01:05 PM ET
The Orionid meteor shower, made up of remnants of Halley's Comet, peaks in mid-October.
19 October 2015, 12:33 PM ET
The 42nd President of the United States sits down with host Neil deGrasse Tyson in the season premiere of Star Talk on National Geographic Channel on Oct. 25th, 2015. Here’s a preview.
19 October 2015, 11:48 AM ET
If you left Earth at near-light-speed, would you really want to come back?
19 October 2015, 10:18 AM ET
The 1450 foot-wide (470m) asteroid 2015 TB145 will pass within 300,000mi (480,000km) of Earth. It was discovered on October 10th by the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS).
19 October 2015, 10:08 AM ET
In a promotion for Star Wars: The Force Awakens, the Japanese airline ANA has painted one of their 787-9 Dreamliner in with R2-D2 colors and design. This time-lapse video shows how the plane was painted and its first flight with the new design.
19 October 2015, 07:30 AM ET
The $25,000 first prize in NASA's 3D-Printed Habitat Challenge Design Competition went to Team Space Exploration Architecture and Clouds Architecture Office for their "Mars Ice House" design, which looks like a translucent, smooth-edged pyramid.
19 October 2015, 07:30 AM ET
Astronomers are using the Allen Telescope Array (ATA), a system of radio dishes about 300 miles (483 kilometers) northeast of San Francisco, to hunt for signals coming from the vicinity of KIC 8462852, a star that lies 1,500 light-years from Earth.
19 October 2015, 07:29 AM ET
Some parts of the moon were so hammered by small asteroids 4 billion years ago that the impacts shattered the upper crust there. Similar impacts on Earth during this same era may have carved out environments in which life first took root.
18 October 2015, 04:21 PM ET
Mysterious dimmings from a faraway star spur speculation about "alien megastructures," some rivers on ancient Mars were dozens of miles long and Pluto's many mysteries continue to intrigue researchers. Here are Space.com's top stories of the week.
18 October 2015, 01:48 PM ET
The forces unleashed by such an impact are hard to comprehend, but a team of Stanford scientists has recreated the conditions experienced during the first billionths of a second as the meteor struck.
17 October 2015, 02:59 PM ET
From the best-ever views of the Saturn moon Enceladus' north pole to a stunning shot of a giant "hole" on the sun, don't miss these amazing space images.
16 October 2015, 04:09 PM ET
Author and PBS host Robert Lawrence Kuhn brings his unique, mind-bending questions to the Expert Voices platform.
16 October 2015, 03:19 PM ET
Forty-five years ago, NASA's final Saturn V rocket stage arrived back at its birthplace. It was moved by barge to its assembly facility outside of New Orleans after being test fired in Mississippi for a last time.
16 October 2015, 03:11 PM ET
The fascinating speculation surrounding a recent Kepler observation of a star 1,500 light-years away has reignited questions of alien life in our universe and what it means for future studies.
16 October 2015, 01:30 PM ET
The future is morally complicated, visually spectacular and set on far-flung worlds — complete with equally far-flung plotlines and awesome special effects — in Syfy's new show "The Expanse," which premieres Dec. 14.
16 October 2015, 12:23 PM ET
A new snapshot of Jupiter, the largest planet in our Solar System, reveals details of the great planet. Scientists use images like this to determine wind speeds, identify atmospheric phenomena and even track changes in its most famous features.
16 October 2015, 11:07 AM ET
George Mueller, who from 1963 to 1969 led NASA's manned space flight efforts through the first moon landing and who was credited as the "father of the space shuttle," died on Oct. 12 after a brief illness. He was 97.
16 October 2015, 11:00 AM ET
When New York Comic Con got wind of what exactly the new Science Channel show "Secret Space Escapes" had in mind for their panel, they decided they'd better get a bigger room.
16 October 2015, 10:22 AM ET
An emerging Sunspot made its presence felt with a blast of towering superheated plasma on Oct. 16th, 2015. A nearby sunspot (AR2434) can also be seen flaring. NASA's Solar Dynamics Observatory captured the solar fireworks display.
16 October 2015, 09:39 AM ET
A surge in flares was observed emanating from Sagittarius A* in the middle of 2014. It coincided with an object with a mass of 4 million Suns nearing the black hole. Named G2, it was thought to be a dust cloud but now appears to be a huge star.
16 October 2015, 07:30 AM ET
As the Philae lander plunged down to land on a comet in 2014, it captured a view of the great comet closer than any had ever seen. Now a new video lets viewers ride along, showing exactly what the lander saw as it descended.
16 October 2015, 07:30 AM ET
Mars-bound crewed spacecraft should launch with just enough fuel to get to filling stations near the moon, which would dispense propellant derived from lunar water-ice, according to the study.
16 October 2015, 07:30 AM ET
Mars hosts liquid water on its surface in places today, but the best way to explore these sites is a matter of contentious debate.
16 October 2015, 07:30 AM ET
NASA's Cassini spacecraft zoomed within 1,142 miles (1,838 kilometers) of Enceladus' surface Wednesday (Oct. 14), capturing its best-ever looks at the north polar region of the ocean-harboring moon.
16 October 2015, 12:40 AM ET
There are thousands of NASA images you've never seen before — here are a few.
15 October 2015, 05:30 PM ET
The sun has sprung a leak: A hole in the topmost layer of the sun and its magnetic field, the size of 50 Earths, is letting loose an ultrafast solar wind that has kicked off several nights of auroras down on Earth.