News tagged with light helium

Elements of ExoPlanets

By looking at the wavelengths of light from nearby stars, researchers have determined the abundance of certain elements for more than a hundred stars. Trace elements in such stars may influence their habitable ...

Space & Earth / Space Exploration

created Feb 02, 2012 | popularity 4.9 / 5 (8) | comments 0 | with audio podcast

How the Milky Way killed off its satellites

(PhysOrg.com) -- Two researchers from Observatoire Astronomique de Strasbourg have revealed for the first time the existence of a new signature of the birth of the first stars in our galaxy, the Milky Way. ...

Space & Earth / Astronomy

created Oct 19, 2011 | popularity 4.6 / 5 (5) | comments 0 | with audio podcast

Single molecule can shift the phase of a laser beam

(PhysOrg.com) -- The ability to control light forms the basis of many technologies, from microscopy to optical computing. Now, a team of scientists from ETH in Zurich, Switzerland, has demonstrated that a ...

Physics / General Physics

created Sep 06, 2011 | popularity 5 / 5 (1) | comments 1 | with audio podcast feature

The making of dust

(PhysOrg.com) -- On the Earth, dust particles are everywhere - under beds, on bookshelves, even floating in the air. We take dust for granted. Dust is also common in space, and it is found for example in the ...

Space & Earth / Astronomy

created Jul 06, 2011 | popularity 4.8 / 5 (4) | comments 5 | with audio podcast

Oh-My-God Particles

Cosmic rays are really sub-atomic particles, being mainly protons (hydrogen nuclei) and occasionally helium or heavier atomic nuclei and very occasionally electrons. Cosmic ray particles are very energetic ...

Space & Earth / Astronomy

created Jun 13, 2011 | popularity 4.4 / 5 (15) | comments 11

Feuding helium dwarfs exposed by eclipse

Researchers at the University of Warwick have found a unique feuding double white dwarf star system where each star appears to have been stripped down to just its helium.

Space & Earth / Astronomy

created May 24, 2011 | popularity 4 / 5 (4) | comments 2 | with audio podcast

Physicist finds colder isn't always slower as electron emissions increase at temps to -452 F

(PhysOrg.com) -- Science is detective work so it was not unexpected that new questions would follow old ones as Indiana University Bloomington nuclear physicist Hans-Otto Meyer's work progressed on testing ...

Physics / General Physics

created Apr 28, 2010 | popularity 4.6 / 5 (10) | comments 14 | with audio podcast

Dark Matter in a Galaxy

(PhysOrg.com) -- Stars, the most familiar objects in the night sky, make up only a tiny percentage of the total amount of matter in the universe -- about 2%.

Space & Earth / Astronomy

created Oct 30, 2009 | popularity 4 / 5 (22) | comments 19

LHC now colder than deep space

(PhysOrg.com) -- The LHC (Large Hadron Collider) is once again colder than deep space as it is prepared for experiments to resume in late November.

Physics / General Physics

created Oct 20, 2009 | popularity 4.6 / 5 (28) | comments 7 weblog

Particle collider: Black hole or crucial machine?

(AP) -- When launched to great fanfare nearly a year ago, some feared the Large Hadron Collider would create a black hole that would suck in the world. It turns out the Hadron may be the black hole.

Physics / General Physics

created Aug 07, 2009 | popularity 4.6 / 5 (21) | comments 10

If Spitzer Could Talk: An Interview with NASA's Coolest Space Telescope

NASA's Spitzer Space Telescope is about to use its last drop of the coolant that has chilled it for the past five-and-a-half years. On about May 12, give or take a week or so, the observatory is predicted ...

Space & Earth / Space Exploration

created May 05, 2009 | popularity 4.2 / 5 (5) | comments 0

Largest collection of anomalous white dwarfs observed by Hubble

Twenty-four unusual stars, 18 of them newly discovered, have been observed in new Hubble telescope images. The stars are white dwarfs, a common type of dead star, but they are odd because they are made of ...

Space & Earth / Astronomy

created Apr 23, 2009 | popularity 4.7 / 5 (6) | comments 0