News tagged with spectral lines
An accurate speedometer for astronomy
Sep 09, 2008 |
4.8 / 5 (18) |
2
Events on a cosmic scale are often barely discernable on Earth. This explains why astronomers are currently not able to prove directly that the universe is expanding at an ever increasing rate, nor can they ...
NASA to Explore 'Secret Layer' of the Sun
Space & Earth / Space Exploration
Sep 08, 2008 |
4 / 5 (29) |
0
Next April, for a grand total of 8 minutes, NASA astronomers are going to glimpse a secret layer of the sun.
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New organic molecule in space
Space & Earth / Space Exploration
Mar 26, 2008 |
4.7 / 5 (9) |
0
The "Large Molecule Heimat" is a very dense, hot gas clump within the star forming region Sagittarius B2. In this source of only 0,3 light-year diameter, which is heated by a deeply embedded newly formed star, ...
Mining for Molecules in the Milky Way
Space & Earth / Space Exploration
Jun 02, 2008 |
4.6 / 5 (7) |
0
Scientists are using the giant Robert C. Byrd Green Bank Telescope (GBT) to go prospecting in a rich molecular cloud in our Milky Way Galaxy. They seek to discover new, complex molecules in interstellar space ...
Purdue 'milestone' a step toward advanced sensors, communications
Aug 01, 2007 |
4.6 / 5 (16) |
0
Engineers at Purdue University have shown how to finely control the spectral properties of ultrafast light pulses, a step toward creating advanced sensors, more powerful communications technologies and more ...
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 ...
High in Sodium: Highly Charged Tungsten Ions May Diagnose Fusion Energy Reactors
Sep 08, 2009 |
4.3 / 5 (7) |
0
(PhysOrg.com) -- Just as health-food manufacturers work on developing the best possible sodium substitutes for low-salt diets, physicists at the National Institute of Standards and Technology have acquired ...
Are Sunspots Disappearing?
Space & Earth / Space Exploration
Sep 03, 2009 |
4.9 / 5 (23) |
15
The sun is in the pits of the deepest solar minimum in nearly a century. Weeks and sometimes whole months go by without even a single tiny sunspot. The quiet has dragged out for more than two years, prompting ...
Scientists discover new planet orbiting dangerously close to giant star
Nov 18, 2008 |
4.3 / 5 (20) |
10
A team of astronomers from Penn State and Nicolaus Copernicus University in Poland has discovered a new planet that is closely orbiting a red-giant star, HD 102272, which is much older than our own Sun. The ...
Young stellar objects: The source of gas emission around Herbig Ae/Be stars
Oct 10, 2008 |
4 / 5 (3) |
0
This week, Astronomy & Astrophysics is publishing new observations with AMBER/VLTI of the gas component in the vicinity of young stars. An international team of astronomers led by E. Tatulli (Grenoble, France) and S. Kra ...
Astronomers pioneer new method for probing exotic matter
Aug 27, 2007 |
4.7 / 5 (36) |
0
Using European and Japanese/NASA X-ray satellites, astronomers have seen Einstein’s predicted distortion of space-time around three neutron stars, and in doing so they have pioneered a groundbreaking technique ...
Optical properties of the Antarctic system and new radiation information
Space & Earth / Earth Sciences
Nov 16, 2009 |
not rated yet |
0
The Antarctic system comprises of the continent itself, Antarctica, and the ocean surrounding it, the Southern Ocean. In a study for a doctoral degree by geophysicist Kai Rasmus, University of Helsinki, Finland, measurements ...
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