Dark energy found in early universe
Posted: Fri, Nov 17, 2006, 7:37 AM ET (1237 GMT)
Dark energy, the mysterious force that is causing the expansion of the universe to accelerate, has existed in the universe for at least nine billion years, astronomers said Thursday. Astronomers used the Hubble Space Telescope to study a class of supernovae that serve as "standard candles", allowing astronomers to measure their distance and the rate of expansion of the universe. The study showed that dark energy existed as far back as nine billion years ago, or less than five billion years after the Big Bang, and at a strength similar to today. The results are consistent with a "cosmological constant" initially proposed by Albert Einstein, although scientists said they're still not sure what generates the dark energy.
Dark energy, the mysterious force that is causing the expansion of the universe to accelerate, has existed in the universe for at least nine billion years, astronomers said Thursday. Astronomers used the Hubble Space Telescope to study a class of supernovae that serve as "standard candles", allowing astronomers to measure their distance and the rate of expansion of the universe. The study showed that dark energy existed as far back as nine billion years ago, or less than five billion years after the Big Bang, and at a strength similar to today. The results are consistent with a "cosmological constant" initially proposed by Albert Einstein, although scientists said they're still not sure what generates the dark energy.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
Space Force adds Rocket Lab and Stoke Space to NSSL contract
Posted: Sun, Mar 30 9:19 AM ET (1319 GMT) |
|
news links
|
|
Friday, April 4
‘Mind-boggling’: Space Force chief fires off dire warning about Chinese capability to knock out US satellites
Fox News — 5:52 am ET (0952 GMT) How China is expanding its anti-satellite arsenal
Defense One — 5:52 am ET (0952 GMT) Rocket Lab And Stoke Space Join U.S. NSSL Lane 1 Vendor Pool
Aviation Week — 5:52 am ET (0952 GMT) Olivia Munn criticizes all-female Blue Origin space crew: ‘What’s the point?’
The Independent — 5:50 am ET (0950 GMT) Olivia Munn slams ‘gluttonous’ female Blue Origin crew going to space: ‘People can’t afford eggs’
New York Post — 5:49 am ET (0949 GMT) |
