astronomers

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Most extreme white dwarf binary system found with orbit of just ...

ScienceDaily  Tue, 03/09/2010 - 13:45

An international team of astronomers has shown that the two stars in the binary HM Cancri definitely revolve around each other in a mere 5.4 minutes.

This makes HM Cancri the binary star with by far the shortest known orbital period. It is also the smallest known binary.


 

Jurassic space: Ancient galaxies come together after billions of...

ScienceDaily  Sat, 02/20/2010 - 00:45

Astronomers have found the astronomical equivalent of prehistoric life in our intergalactic backyard: a group of small, ancient galaxies that has waited 10 billion years to come together.

These "late bloomers" are on their way to building a large elliptical galaxy.


 

A new 3-D map of the interstellar gas within 300 parsecs from th...

EurekAlert! - Chemistry, Physics and Materials Sciences  Mon, 02/08/2010 - 23:00

(Astronomy & Astrophysics) Astronomy & Astrophysics is publishing new 3-D maps of the interstellar gas in the local area around our sun.

A French-American team of astronomers presents new absorption measurements towards more than 1800 stars.

They were able to characterize the properties of the interstellar gas within each sight line.


 

Runaway anti-matter production makes for a spectacular stellar e...

ScienceDaily  Mon, 01/04/2010 - 22:45

Astronomers have discovered a distant star that exploded when its center became so hot that matter and anti-matter particle pairs were created.


 

Just after the Big Bang: Hubble's deepest view of universe unvei...

ScienceDaily  Tue, 12/08/2009 - 15:15

Astronomers have taken the deepest image yet of the Universe in near-infrared light. The faintest and reddest objects in the image are likely the oldest galaxies ever identified, having formed between only 600-900 million years after the Big Bang.


 

Exoplanets Clue To Sun's Curious Chemistry

ScienceDaily  Wed, 11/11/2009 - 21:15

A ground-breaking census of 500 stars, 70 of which are known to host planets, has successfully linked the long-standing "lithium mystery" observed in the Sun to the presence of planetary systems.

Using ESO's successful HARPS spectrograph, a team of astronomers has found that sun-like stars that host planets have destroyed their lithium much more efficiently than "planet-free" stars.


 

Shedding Light On The Cosmic Skeleton

ScienceDaily  Wed, 11/04/2009 - 01:15

Astronomers have tracked down a gigantic, previously unknown assembly of galaxies located almost seven billion light-years away from us.

The discovery, made possible by combining two of the most powerful ground-based telescopes in the world, is the first observation of such a prominent galaxy structure in the distant Universe, providing further insight into the cosmic web and how it formed.


 

Is Unknown Force In Universe Acting On Dark Matter?

ScienceDaily  Thu, 10/22/2009 - 22:45

Astronomers have found an unexpected link between mysterious 'dark matter' and the visible stars and gas in galaxies that could revolutionize our current understanding of gravity.

The finding suggests that an unknown force is acting on dark matter.


 

Mini-Comets Within A Comet Lit Up 17P/Holmes During Megaoutburst

ScienceDaily  Tue, 09/15/2009 - 20:30

Astronomers have discovered multiple fragments ejected during the largest cometary outburst ever witnessed. Images and animations show fragments rapidly flying away from the nucleus of comet 17P/Holmes.


 

Science in the News - Thursday 3 September 2009

The Royal Society  Wed, 09/02/2009 - 18:00

Astronomers searching for the perfect place for an observatory have established that a ridge in Antarctica is the calmest place on Earth.