New images offer views of early universe
Posted: Fri, Jan 10, 2003, 7:29 AM ET (1229 GMT)
Astronomers released this week new images that offer the best glimpses yet of conditions in the early universe. In one study, astronomers used images from the Sloan Digital Sky Survey to locate the most distant quasar found to date: an object with a redshift of 6.4, corresponding to a distance of 13 billion light-years. The universe was only 800 million years old when the light observed left the quasar. Astronomers hope to use images of that and other quasars to characterize the evolution of these objects over time. In a separate study, another group of astronomers used the Hubble Space Telescope to discover young galaxies at a redshift of 6 that formed when the universe was no more than a billion years old. Astronomers believe that there may have been 400 million such galaxies at this phase of the universe's history.
Astronomers released this week new images that offer the best glimpses yet of conditions in the early universe. In one study, astronomers used images from the Sloan Digital Sky Survey to locate the most distant quasar found to date: an object with a redshift of 6.4, corresponding to a distance of 13 billion light-years. The universe was only 800 million years old when the light observed left the quasar. Astronomers hope to use images of that and other quasars to characterize the evolution of these objects over time. In a separate study, another group of astronomers used the Hubble Space Telescope to discover young galaxies at a redshift of 6 that formed when the universe was no more than a billion years old. Astronomers believe that there may have been 400 million such galaxies at this phase of the universe's history.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
US and UK militaries conduct coordinated satellite maneuvers
Posted: Sun, Sep 21 8:30 AM ET (1230 GMT) Blue Origin retires a New Shepard capsule after payload flight
Posted: Sun, Sep 21 8:25 AM ET (1225 GMT) |
|
news links
|
|
Tuesday, October 7
Startup Firefly Makes Move to Expand into Golden Dome, Dynamic Satellites
Air and Space Forces Magazine — 7:22 am ET (1122 GMT) Cedar Park-based Firefly moves into national security with $855M SciTec acquisition
KVUE-TV Austin, TX — 7:22 am ET (1122 GMT) Rep. Crank addresses Space Command relocation in interview, hints about 'roadblocks'
KOAA-TV Colorado Springs — 7:19 am ET (1119 GMT) U.S. Space Force Considering Upgrades for Three Electromagnetic Warfare Systems
Defense Daily — 7:18 am ET (1118 GMT) Rocket Lab Sets Launch Schedule for 1st of 21 New Missions with Synspective
Rocket Lab — 7:16 am ET (1116 GMT) |
