Space.com Geminid Meteor Shower: Dust From an Asteroid 2016-12-07T16:35:00.000000Z 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. Dark Matter Not So Clumpy After All 2016-12-07T14:00:00.000000Z Dark matter, the mysteriously invisible substance that makes up about 27 percent of the mass in the universe, may not be as clumpy as scientists previously thought. Dark Matter Map Made From Huge Galaxy Survey | Video 2016-12-07T14:00:00.000000Z Light data from the Kilo Degree Survey (KiDS), which spanned over 15 million galaxies at a distance of 6 billion light-years from Earth, was used to create this new map of dark matter in and 4 others. KiDS used ESO's Very Large Telescope. US Air Force Launches Advanced Military Communications Satellite 2016-12-07T13:32:00.000000Z The WGS-8 satellite lifted off atop a United Launch Alliance Delta IV Medium rocket today (Dec. 7) at 6:53 p.m. EST (2353 GMT) from Cape Canaveral Air Force Station in Florida. Image of the Day 2016-12-07T12:01:00.000000Z The Hubble Space Telescope created this image of the irregular galaxy IC 3583, which resides 30 million light-years away in the constellation Virgo. Launch Photos: US Air Force's Wideband Global SATCOM 8 Blasts Off 2016-12-07T12:00:00.000000Z A United Launch Alliance Delta IV Medium rocket launched the eighth Wideband Global SATCOM (WGS-8) mission for the U.S. Air Force on Dec. 7, 2016, from Cape Canaveral Air Force Station, Florida. Will Antimatter Engines Power the First Starships? (Video) 2016-12-07T12:00:00.000000Z Reaching even the closest star to the sun would take tens of thousands of years using conventional propulsion — but an antimatter engine could cut that trip down to just 40 years, according to the company Positron Dynamics. US Military Communications Satellite Launching Today: Watch It Live 2016-12-07T12:00:00.000000Z The U.S. Air Force's WGS-8 communications satellite will take flight today (Dec. 7), and you can catch all the spaceflight action live. Geminid Meteor Shower 2016: When, Where & How to See It 2016-12-07T12:00:00.000000Z While December's supermoon will wash out the peak of this year's Geminid meteor shower, you can still expect to see several bright shooting stars in the sky. There will just be fewer of them during the North American peak on the night of Dec. 13 and morni San Francisco Skyscraper Is Sinking, Satellite Images Show 2016-12-07T12:00:00.000000Z San Francisco's Millennium Tower skyscraper is subtly sinking by a few centimeters a year, according to measurements from the European Space Agency's (ESA) twin Copernicus Sentinel-1 satellites.