STELLAR CHEMISTRY

News About Stellar Chemistry

4,992 articles

Astronomers report dark matter 'halos' may contain stars, disprove other theories
Oct 25, 2012 (SPX)
Could it be that dark matter "halos" - the huge, invisible cocoons of mass that envelop entire galaxies and account for most of the matter in the universe - are...
Quasar May Be Embedded in Unusually Dusty Galaxy
Oct 24, 2012 (SPX)
Hubble astronomers have looked at one of the most distant and brightest quasars in the universe and are surprised by what they did not see: the underlying host ...
A 84-million star color-magnitude diagram of the Milky Way bulge
Oct 24, 2012 (SPX)
Astronomy and Astrophysics published the first analysis of a catalog of 84 million individual stars in the Milky Way bulge as a part of the VVV ESO public surve...
Milky Way's black hole getting ready for snack
Oct 23, 2012 (SPX)
Get ready for a fascinating eating experience in the center of our galaxy. The event involves a black hole that may devour much of an approaching cloud of dust ...
Astronomers study two million light year 'extragalactic afterburner'
Oct 23, 2012 (SPX)
Blasting over two million lights years from the centre of a distant galaxy is a supersonic jet of material that looks strikingly similar to the afterburner flow...
Split-Personality Elliptical Galaxy Holds a Hidden Spiral
Oct 23, 2012 (SPX)
Most big galaxies fit into one of two camps: pinwheel-shaped spiral galaxies and blobby elliptical galaxies. Spirals like the Milky Way are hip and happening pl...
Astronomers Uncover A Surprising Trend in Galaxy Evolution
Oct 22, 2012 (SPX)
A comprehensive study of hundreds of galaxies observed by the Keck telescopes in Hawaii and NASA's Hubble Space Telescope has revealed an unexpected pattern of ...
Hubble Sees Galaxy in a spin
Oct 22, 2012 (SPX)
NGC 3344 is a glorious spiral galaxy around half the size of the Milky Way, which lies 25 million light-years distant. We are fortunate enough to see NGC 3344 f...
Poetry in Motion: Rare Polar Ring Galaxy Captured in New Image
Oct 19, 2012 (SPX)
These words, which open Shelley's poem "When the Lamp is Shattered," employ visions of nature to symbolize life in decay and rebirth. It's as if he had somehow ...
Radioactive decay of titanium powers supernova remnant
Oct 19, 2012 (ESA)
Astronomers using INTEGRAL have detected the first direct signature of titanium-44 in the remnant of the nearby supernova 1987A. The discovery reveals a large a...
Jupiter: Turmoil from Below, Battering from Above
Oct 18, 2012 (JPL)
Jupiter, the mythical god of sky and thunder, would certainly be pleased at all the changes afoot at his namesake planet. As the planet gets peppered continuall...
Dark Matter Filament Studied in 3D for the First Time
Oct 17, 2012 (SPX)
Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years fr...
X-raying colliding stellar winds
Oct 16, 2012 (ESA)
Ground- and space-based observations, including studies by ESA's XMM-Newton X-ray observatory, have provided unique insights into a star system dominated by two...
X-raying colliding stellar winds
Oct 15, 2012 (ESA)
Ground- and space-based observations, including studies by ESA's XMM-Newton X-ray observatory, have provided unique insights into a star system dominated by two...
X-ray Satellites Monitor the Clashing Winds of a Colossal Binary
Oct 15, 2012 (SPX)
The hottest and most massive stars don't live long enough to disperse throughout the galaxy. Instead, they can be found near the clouds of gas and dust where th...
X-Raying Stellar Winds in a High-Speed Collision
Oct 15, 2012 (ESA)
Two massive stars racing in orbit around each other have had their colliding stellar winds X-rayed for the first time, thanks to the combined efforts of ESA's X...
When Galaxies Eat Galaxies They Get Denser
Oct 15, 2012 (SPX)
Using gravitational "lenses" in space, University of Utah astronomers discovered that the centers of the biggest galaxies are growing denser + evidence of repea...
A Planetary Nebula Gallery From Chandra
Oct 11, 2012 (SPX)
This gallery shows four planetary nebulas from the first systematic survey of such objects in the solar neighborhood made with NASA's Chandra X-ray Observatory....
Sweeping X-Ray Imaging Survey Of Dying Stars Is 'Uncharted Territory'
Oct 11, 2012 (SPX)
The death throes of dying stars are the focus of a sweeping new survey using NASA's Chandra X-ray satellite observatory. More than two dozen astronomers have al...
The Secrets Of A Dying Star
Oct 11, 2012 (SPX)
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered a totally unexpected spiral structure in the material around the old s...
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