News tagged with hubble constant
A new way to measure the expansion of the universe
A PhD student from The International Centre for Radio Astronomy Research (ICRAR) in Perth has produced one of the most accurate measurements ever made of how fast the Universe is expanding.
Jul 26, 2011 |
4.6 / 5 (20) |
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Hubble rules out one alternative to dark energy
(PhysOrg.com) -- Astronomers using NASA's Hubble Space Telescope have ruled out an alternate theory on the nature of dark energy after recalculating the expansion rate of the universe to unprecedented accuracy.
Mar 14, 2011 |
4.6 / 5 (25) |
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Refined Hubble Constant narrows explanations for dark energy
Whatever dark energy is, explanations for it have less wiggle room following a Hubble Space Telescope observation that has refined the measurement of the universe's present expansion rate to a precision where ...
May 07, 2009 |
4.4 / 5 (26) |
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Zeroing in on Hubble's constant
(PhysOrg.com) -- In the early part of the 20th Century, Carnegie astronomer Edwin Hubble discovered that the universe is expanding. The rate of expansion is known as the Hubble constant. Its precise value ...
Jan 05, 2009 |
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Search results for hubble constant
Astronomers find a dark matter galaxy far, far away
(PhysOrg.com) -- A faint “satellite galaxy” 10 billion light years from Earth is the lowest-mass object ever detected at such a distance, says University of California, Davis, physics professor Chris ...
Jan 18, 2012 |
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Why does Sirius twinkle?
At this time of year, after dark we in the northern hemisphere are able to see the mighty constellation of Orion rise high in the sky with a very bright companion in a nearby constellation: Sirius – The ...
Jan 17, 2012 |
5 / 5 (5) |
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Was the real discovery of the expanding universe lost in translation?
(PhysOrg.com) -- The greatest astronomical discovery of the 20th century may have been credited to the wrong person. But it turns out to have been nobody's fault except for that of the actual original discoverer ...
Nov 09, 2011 |
4.4 / 5 (17) |
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Why Einstein was wrong about being wrong
If you want to get your mind around the research that won three astronomers the Nobel Prize in physics last week, it helps to think of the universe as a lump of dough - raisin-bread dough, to be precise - mixed, kneaded and ...
Oct 14, 2011 |
4.4 / 5 (16) |
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Nature of universe is still a mystery to Nobel winners
They won the Nobel Prize for changing our understanding of the universe, but their discovery left an even larger mystery -- what is this dark energy that is propelling the universe to expand so fast? ...
Oct 04, 2011 |
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Help! My stars are leaking!
Star clusters are wonderful test beds for theories of stellar formation and evolution. One of the key roles they play is to help astronomers understand the distribution of stellar masses as stars form (in ...
Sep 16, 2011 |
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Space shuttle's science brought payoffs to Earth
Science from the space shuttle helped open Earth's eyes to the cosmos and sister planets. It created perhaps the most detailed topographical map of Earth. And it even is helping doctors understand, and sometimes ...
Space & Earth / Space Exploration
Jul 18, 2011 |
5 / 5 (4) |
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Web abuzz with claims that Hubble sought to censor Lemaitre's paper
(PhysOrg.com) -- In one of those odd scientific debates where people who ought to know better, speak up, and in this case, print articles on arXiv, making claims about personal issues rather than science, buzz h ...
Jul 13, 2011 |
4.6 / 5 (7) |
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The shocking environment of hot Jupiters
(PhysOrg.com) -- Jupiter-like worlds around other stars push shock waves ahead of them, according to a team of UK astronomers. Just as the Earth's magnetic "bow-shock" protects us from the high-energy solar ...
Apr 19, 2011 |
4.7 / 5 (3) |
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Far-future astronomers could still deduce the Big Bang
(PhysOrg.com) -- One trillion years from now, an alien astronomer in our galaxy will have a difficult time figuring out how the universe began. They won't have the evidence that we enjoy today.
Apr 14, 2011 |
4.2 / 5 (6) |
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List of search results for hubble constant
