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15 May 2015, 12:45 PM ET
The neutron star SGR 1745-2900 near the Milky Way's supermassive black hole Sagittarius A* is not slowing down its X-ray output as expected. Data from Chandra's X-ray Observatory show a slow decline in X-ray brightness and high temperature surfaces.
15 May 2015, 11:01 AM ET
Settling Mars could help humanity escape and mitigate the problems our species is facing here on Earth, several science-fiction authors said.
15 May 2015, 10:50 AM ET
The Hubble Space Telescope was used to study 3000 white dwarf stars in Milky Way star cluster 47 Tucanae. The white dwarfs are migrating outward from the center of the cluster, which is home to hundreds of thousands of stars.
15 May 2015, 10:30 AM ET
The House Science Committee approved four bills on commercial space topics during a lengthy markup session May 13 marked by partisan divides on a number of issues.
15 May 2015, 07:01 AM ET
The famous Big Dipper star pattern shines in May's night sky, as do the moon and a surprisingly nocturnal Venus.
15 May 2015, 07:00 AM ET
NASA's New Horizons probe, which is set to perform the first-ever flyby of Pluto on July 14, has begun hunting for possible rings and undiscovered moons, in an effort to identify potential hazards near the dwarf planet.
15 May 2015, 07:00 AM ET
"Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future," by tech journalist Ashlee Vance, will be released on May 19. But you can get a sneak peak at the book now, via a lengthy excerpt published Thursday (May 14) on Bloomberg.com.
14 May 2015, 11:00 PM ET
As New Horizons nears its closest approach with Pluto, the mission team is hosting 'Pluto-Palooza' events in multiple locations around the country.
14 May 2015, 07:49 PM ET
NASA's Kepler mission captured over 2 months of Triton's orbit of Neptune. Small moon Nereid joins in on the dance on Day 24 and some streaking asteroids make the flurry complete.
14 May 2015, 04:24 PM ET
A giant nebula in the early universe hits the jackpot when it comes to rare, bright objects known as quasars, boasting four within surprisingly close proximity to one another. The first known quasar quartet lies in a cloud of cool gas that could provide a
14 May 2015, 03:17 PM ET
A preliminary investigation has revealed that the Progress 59 freighter's issues stemmed from a too-early separation of the Soyuz's third stage, officials with Roscosmos, Russia's federal space agency, announced Tuesday (May 12).
14 May 2015, 01:54 PM ET
A dense cloud of gas that astronomers are calling a 'cosmic dinosaur egg' appears to be on the cusp of birthing millions of stars. This may be the youngest example of an object called a globular cluster.
14 May 2015, 12:47 PM ET
See amazing images of the night sky and cosmos in SPACE.com's gallery of cosmic images posted in April 2015.
14 May 2015, 07:25 AM ET
A new video mashes up clips from "Star Wars" and "Star Trek" into an 85-second trailer for a fake 1985 film called "The Carbonite Maneuver," whose release would have been the sci-fi event of the century.
14 May 2015, 07:20 AM ET
NASA astronaut Scott Kelly says he's settling into his epic yearlong mission to the International Space Station, thanks in small part to the 'ISSPresso' coffee machine that arrived at the orbiting lab last month.
14 May 2015, 07:18 AM ET
"Chaotic planets" that possess wildly unpredictable orbits and climates likely circle distant stars, suggesting that some alien worlds that look habitable might actually be hostile to life for millions of years at a time, a new study reports.
14 May 2015, 07:00 AM ET
As dark matter circles around a black hole, it might create a gamma-ray signal that could be detectable from Earth. A visible signal from the otherwise-invisible stuff would be a major breakthrough in the study of this mysterious material.
13 May 2015, 10:33 PM ET
A clue to one of the biggest questions in cosmology — why did regular matter survive to fill the universe, instead of antimatter — may have been found in data from NASA's Fermi Gamma-ray Space Telescope.
13 May 2015, 05:01 PM ET
A new NASA image, captured by MODIS on the Aqua satellite, reveals clouds cover two-thirds of Earth, with some zones supporting more clouds than others on the planet.
13 May 2015, 04:45 PM ET
Mamtani took the image in Borrego Springs, California during the weekend of April 17, 2015.
13 May 2015, 04:09 PM ET
Bill Nye (The Science Guy) wants you to be a part — and get a part — of a "revolutionary solar sailing spacecraft." The leader of The Planetary Society has started crowdfunding for LightSail, a citizen-funded flight by light.
13 May 2015, 03:17 PM ET
Brightman was scheduled to launch Sept. 1 on a self-funded 10-day mission to the orbiting lab aboard a Russian Soyuz spacecraft. But Brightman announced today (May 13) that she won't be making the trip to orbit.
13 May 2015, 02:07 PM ET
Astronomers may have solved the decades-long cosmic murder mystery of what kills most galaxies in the universe: They are strangled to death . 'What kills galaxies is one of the most challenging questions in the past 20 years,' a scientist says.
13 May 2015, 11:35 AM ET
The astronaut who commanded the second-to-last space shuttle mission placed second on "Celebrity Jeopardy!," finishing behind an NFL football player. "Jeopardy made flying a rocket look easy!" said Mark Kelly.
13 May 2015, 11:11 AM ET
Small moons Styx, Nix, Kerberos and Hydra – along with the big moon Charon – ‘pulled up’ out of the noise and star field by processing images from the NASA probe's Long Range Reconnaissance Imager (April 25th-May 2nd, 2015).
13 May 2015, 08:41 AM ET
The suction fan on the Space Station potty is so loud that, well, everyone knows when you 'go.' Italian astronaut Samantha Cristoforetti explains how to turn on that fan and how-to use the International Space Station toilet.
13 May 2015, 07:30 AM ET
Do jokes about the name 'Uranus" get in the way of people actually learning about the gas giant planet?
13 May 2015, 07:19 AM ET
The reddish-brown lines that crisscross the icy surface of Europa may be radiation-blasted sea salt from the Jupiter moon's underground ocean. Radiation-blasted salt turned dark during a lab experiment that mimicked Europa conditions.
13 May 2015, 07:00 AM ET
Although DNA and RNA would not function in environments like that of Saturn's moon Titan, ethers could fulfill this key role.
13 May 2015, 07:00 AM ET
Dozens of students from 14 countries around the world came together recently to map out a manned mission to a captured asteroid in lunar orbit — a project very much like one NASA hopes to achieve by 2025.
12 May 2015, 08:08 PM ET
New Horizons took a series of images from April 25 through May 1. The shots mark the first time New Horizons has managed to resolve the extremely faint Pluto moons Kerberos and Styx, mission team members said.
12 May 2015, 04:30 PM ET
A Singapore-based team called Titans Creations spent two months planning and building the model, which measures 43.3 inches by 33.5 inches (110 by 85 centimeters) and contains so many bricks that team members lost count.