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Voyager makes an interstellar discovery
Space & Earth / Space Exploration
Dec 26, 2009 |
4.7 / 5 (60) |
23
The solar system is passing through an interstellar cloud that physics says should not exist. In the Dec. 24th issue of Nature, a team of scientists reveal how NASA's Voyager spacecraft have solved the mystery.
Stars Fueled by Dark Matter Could Hold Secrets to the Universe
Nov 03, 2009 |
4.4 / 5 (58) |
44
(PhysOrg.com) -- The first stars in the universe may have been very different from the stars we see today, yet they may hold clues to understanding some of the mysterious features of the universe. These "dark ...
Superior Super Earths
Space & Earth / Space Exploration
Nov 30, 2009 |
4.6 / 5 (55) |
15
Super Earths are named for their size, but these planets - which range from about 2 to 10 Earth masses - could be superior to the Earth when it comes to sustaining life. They could also provide an answer to ...
Invisible hand in invisible matter
Oct 06, 2009 |
4.6 / 5 (50) |
38
(PhysOrg.com) -- An international team of astronomers have found an unexpected link between mysterious 'dark matter' and the visible stars and gas in galaxies that could revolutionise our current understanding ...
Galactic Colonization Limited By The Inability To Expand Exponentially
Jun 23, 2009 |
4.3 / 5 (51) |
92
(PhysOrg.com) -- For more than 50 years, many have taken the so-called Fermi Paradox to indicate that the existence of intelligent alien civilizations is an impossibility. However, a recent re-examination ...
Study plunges standard Theory of Cosmology into Crisis
May 05, 2009 |
4.5 / 5 (47) |
70
As modern cosmologists rely more and more on the ominous “dark matter” to explain otherwise inexplicable observations, much effort has gone into the detection of this mysterious substance in the last two decades, yet no direct ...
Dark Energy From the Ground Up: Make Way for BigBOSS
Aug 07, 2009 |
4.9 / 5 (36) |
13
(PhysOrg.com) -- Several ways have been proposed to examine dark energy, in hopes of finding out just what it is. One of them, "supernovae" for short, certainly works: it's how dark energy was discovered in ...
We have a 'right to starlight,' astronomers say
Aug 15, 2009 |
4.4 / 5 (31) |
38
The public's "right to starlight" is steadily being eroded by urban illumination that is the bane of astronomers everywhere, the International Astronomical Union said on Friday.
Math theories may hold clues to origin, future of life in universe
Jun 09, 2009 |
3.9 / 5 (34) |
62
How did we get here and where are we headed? These are some of life's biggest questions. To get the answers, one Kansas State University professor is doing the math.
Black hole caught zapping galaxy into existence?
Nov 30, 2009 |
4.8 / 5 (27) |
9
(PhysOrg.com) -- Which come first, the supermassive black holes that frantically devour matter or the enormous galaxies where they reside? A brand new scenario has emerged from a recent set of outstanding ...
Life in the universe? Almost certainly. Intelligence? Maybe not
May 12, 2009 |
3.3 / 5 (39) |
65
(PhysOrg.com) -- We are likely not alone in the universe, though it may feel like it, since life on other planets is probably dominated by microbes or other nonspeaking creatures, according to scientists who ...
Physicists on the prowl for dark matter
Jul 23, 2009 |
3.8 / 5 (33) |
89
(PhysOrg.com) -- 95%. That is the percentage of the known Universe that is missing. As in it is not there. Or at least if it is there, we can't see it. We call this unseen stuff "dark matter". That has been ...
Galactic nuclei offer some indication of axionlike particles
May 28, 2009 |
4.5 / 5 (26) |
18
(PhysOrg.com) -- “Axionlike particles are interesting because they come up regularly when scientists study string theory. By looking at their properties, you hope to learn about string theory, or some other unified theory ...
Herschel first images promise bright future
Jul 10, 2009 |
4.5 / 5 (26) |
1
Herschel has carried out the first test observations with all its instruments, with spectacular results. Galaxies, star-forming regions and dying stars comprised the telescope's first targets. The instruments ...
Herschel's daring test: A glimpse of things to come
Jun 19, 2009 |
4.7 / 5 (25) |
2
Herschel opened its 'eyes' on 14 June and the Photoconductor Array Camera and Spectrometer obtained images of M51, 'the whirlpool galaxy' for a first test observation. Scientists obtained images in three colours ...
