Spacebuzz

Blog posts tagged with stellar evolution

Posts in the past four weeks

Tuesday
Aug 05 2014
16:30 UTC

Can A Planet-Like Object' Start Its Life Blazing As Hot As A Star?

Nature once again shows us how hard it is to fit astronomical objects into categories. An examination of a so-far unique brown dwarf — an object that is a little too small to start nuclear fusion and be a star — shows that it could have been as hot as a star in the ancient […]

Posted by Universe Today

Tuesday
Aug 05 2014
14:42 UTC

The History of the Galactic Halo

The number and luminosity distribution of white dwarfs stars can be used to help figure out the past history of the Galactic halo.

Posted by astrobites

Monday
Aug 04 2014
21:42 UTC

Deep Astrophoto of LDN 673: The Place Where Stars are Born

What a stunning view of this dark region of space! This image, by astrophotographer Callum Hayton shows LDN 673, a molecular cloud complex that lies in the constellation Aquila. This region is massive — around 67 trillion kilometers (42 trillion miles across), and it is between 300-600 light years from Earth. Observers in the northern […]

Posted by Universe Today

Wednesday
Jul 23 2014
14:21 UTC

Split-Personality Pulsar Switches From Radio To Gamma-Rays

Another snapshot of our strange universe: astronomers recently caught a pulsar — a particular kind of dense star — switch off its radio beacon while powerful gamma rays brightened fivefold. “It's almost as if someone flipped a switch, morphing the system from a lower-energy state to a higher-energy one,” stated lead researcher Benjamin Stappers, an […]

Posted by Universe Today

Wednesday
Jul 23 2014
13:28 UTC

ESO's La Silla Observatory Reveals Beautiful Star Cluster Laboratory

Any human being knows the awe-inspiring wonder of a splash of stars against a dark backdrop. But it takes a skilled someone to truly appreciate a distant object viewed through an eyepiece. Your gut tightens as you realize that the tiny fuzzy blob is really thousands of light-years away. That wave of amazement is encouraged […]

Posted by Universe Today

Tuesday
Jul 22 2014
15:59 UTC

Cosmic Fireworks: A Supernova Feast And Google+ Hangout For Chandra's 15th Anniversary

It's well past the Fourth of July, but you can still easily find fireworks in the sky if you look around. The Chandra X-Ray Observatory has been doing just that for the past 15 years, revealing what the universe looks like in these longer wavelengths that are invisible to human eyes. Just in time for […]

Posted by Universe Today

Friday
Jul 11 2014
21:10 UTC

New VLT Observations Clear Up Dusty Mystery

The Universe is overflowing with cosmic dust. Planets form in swirling clouds of dust around a young star; Dust lanes hide more-distant stars in the Milky Way above us; And molecular hydrogen forms on the dust grains in interstellar space. Even the soot from a candle is very similar to cosmic carbon dust. Both consist […]

Posted by Universe Today

Thursday
Jul 10 2014
18:31 UTC

Merging Giant Galaxies Sport Blue Bling' in New Hubble Pic

On a summer night, high above our heads, where the Northern Crown and Herdsman meet, a titanic new galaxy is being born 4. 5 billion light years away. You and I can't see it, but astronomers using the Hubble Space Telescope released photographs today showing the merger of two enormous elliptical galaxies into a future Âheavyweight […]

Posted by Universe Today

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