Astronomers see light from earliest stars
Posted: Thu, Nov 3, 2005, 7:50 AM ET (1250 GMT)
Astronomers announced Wednesday that they have detected light that may eminate from the universe's earliest stars. NASA's Spitzer Space Telescope detected the infrared light from "giant blobs" during extended observations in the direction of the constellation Draco. Astronomers believe the light comes from "Population 3" stars, a hypothesized class of stars not previously detected that were the first to form after the Big Bang. The stars were extremely large and short-lived, shining brightly at ultraviolet wavelengths that have redshifted to infrared bands because of the expansion of the universe. Alternatively, the light may come from hot gas falling into the universe's first black holes.
Astronomers announced Wednesday that they have detected light that may eminate from the universe's earliest stars. NASA's Spitzer Space Telescope detected the infrared light from "giant blobs" during extended observations in the direction of the constellation Draco. Astronomers believe the light comes from "Population 3" stars, a hypothesized class of stars not previously detected that were the first to form after the Big Bang. The stars were extremely large and short-lived, shining brightly at ultraviolet wavelengths that have redshifted to infrared bands because of the expansion of the universe. Alternatively, the light may come from hot gas falling into the universe's first black holes.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
Starship explodes during preparations for static-fire test
Posted: Sun, Jun 22 6:52 AM ET (1052 GMT) |
|
news links
|
|
Monday, June 23
Tehran warns Iranians: Don’t install Elon Musk’s Starlink internet
Jerusalem Post — 4:35 am ET (0835 GMT) SpaceX Delays Rocket Launch Until Monday Afternoon at Vandenberg
Noozhawk — 4:32 am ET (0832 GMT) SpaceX Sends Icelandic Hemp on Orbital Mission
Iceland Review — 4:31 am ET (0831 GMT) Amazon and SpaceX satellite launches rescheduled for Monday
WESH-TV Orlando — 4:28 am ET (0828 GMT) PhilSA welcomes Austrian ambassador to talk satellites, startups, and spaceports
Philippine Space Agency — 4:24 am ET (0824 GMT) |
