Scientists believe that their light source is a very bright gaseous disk surrounding a supermassive black hole at the center of the galaxy. Gas streams called "outflows" move outward from the disk and have a substantial influence on surrounding interstellar/intergalactic regions. However, because quasars at large distances look like mere stars, their internal structures are not easy to investigate.
The fledgling Beidou satellite navigation system will soon benefit hundreds of millions of users, and provide a cheaper and in some cases better alternative than the Global Positioning System, industry specialists said.
Australian researchers have developed a substance that looks and behaves like soil from the moon's surface and can be mixed with polymers to create 'lunar concrete', a finding that may help advance plans to construct safe landing pads and mines on the moon.
SpaceWorks Enterprises, Inc. (SEI) today released an update to its nanosatellite and microsatellite market analysis study. The study presents the latest observations, trends, and projections for the nano/microsatellite market.
University faculty and students interested in learning how to build scientific experiments for spaceflight are invited to join RockOn 2013 from June 15-20 at NASA's Wallops Flight Facility in Virginia.
NASA, universities and private groups in the US are working on asteroid warning systems that can detect objects from space like the one that struck Russia last week with a blinding flash and mighty boom.
Performing sensitive biological experiments is always a delicate affair. Few researchers, however, contend with the challenges faced by Cheryl Nickerson, whose working laboratory aboard the International Space Station (ISS) is located hundreds of miles above the Earth, traveling at some 17,000 miles per hour.
Traces of water have been detected within the crystalline structure of mineral samples from the lunar highland upper crust obtained during the Apollo missions, according to a University of Michigan researcher and his colleagues.
U.S. astronomers looking for life in the solar system believe that Europa, one of the moons of Jupiter, which has an ocean, is much more promising than desert-covered Mars, which is currently the focus of the US government's attention.
UC Santa Barbara physicist and professor Philip M. Lubin, and Gary B. Hughes conceived DE-STAR, or Directed Energy Solar Targeting of Asteroids an exploRation, as a realistic means of mitigating potential threats posed to the Earth by asteroids and comets.
A new study using observations from NASA's Fermi Gamma-ray Space Telescope reveals the first clear-cut evidence the expanding debris of exploded stars produces some of the fastest-moving matter in the universe. This discovery is a major step toward understanding the origin of cosmic rays, one of Fermi's primary mission goals.
A team of astronomers has observed the supernova remnant SN 1006, probing in unprecedented detail the region where the gas ejected during the supernova meets the surrounding interstellar matter. Such remnants have long been thought to be the source of cosmic ray particles hitting Earth.
Using modified laws of gravity, researchers from Case Western Reserve University and Weizmann Institute of Science closely predicted a key property measured in faint dwarf galaxies that are satellites of the nearby giant spiral galaxy Andromeda.