STELLAR CHEMISTRY

News About Stellar Chemistry

4,992 articles

Sloan Digital Sky Survey marks 20 years of observations
May 11, 2018 (SPX)
When dawn broke after a long night's work, SDSS observer Dan Long emailed his usual observer's log summarizing what happened. After describing the technical det...
Tech bends light more efficiently, offers wider angles for light input
May 10, 2018 (SPX)
At issue are diffraction gratings, which are used to manipulate light in everything from electronic displays to fiber-optic communication technologies. "Until n...
Bursting pulsar found to 'hiccup' during crucial stage of its lifecycle
May 10, 2018 (SPX)
Transitional pulsars are a rare class of neutron stars, which alternate between showing X-ray and radio pulsations over timescales of years. Jamie Court, postgr...
Black Hole Bounty Captured in the Milky Way Center
May 10, 2018 (SPX)
This black hole bounty consists of stellar-mass black holes, which typically weigh between five to 30 times the mass of the Sun. These newly identified black ho...
Breakthrough listen begins survey of Milky Way galactic plane at Parkes
May 08, 2018 (SPX)
Listen observations at Parkes began in November 2016, targeting a sample consisting mostly of stars within a few light years of Earth. Now, observations have ex...
NASA's Webb Observatory Spacecraft Element Environmental Testing Update
May 07, 2018 (SPX)
The spacecraft element's first test simulated the mechanical shock caused by the separation of the spacecraft's payload adapter after launch. The second test su...
Nanoscale measurements 100x more precise, thanks to improved two-photon technique
May 07, 2018 (SPX)
QuantIC is the UK Quantum Technology Hub in Quantum Enhanced Imaging and part of the UK National Quantum Technologies Programme. Using pairs of photons, fundame...
Burst of newborn stars in young star cluster puzzles astronomers
May 07, 2018 (SPX)
Such stars are known as "blue stragglers," because they appear to "straggle" behind the natural evolution of most stars in a star cluster: They still resemble e...
MSU-based specialists in mechanics investigated the behavior of vacuum oil in space
May 07, 2018 (SPX)
Under standard conditions, the stability of liquid sheets generally depends on their interaction with the air. The predominant effect (the so-called Kelvin-Helm...
NASA's Rossi X-ray Timing Explorer leaves scientific 'treasure trove'
May 04, 2018 (SPX)
The strong gravity of these objects can pull streams of gas from a nearby companion star and corral it in a vast storage zone called an accretion disk. The orbi...
Prototype camera set for integration into novel Gamma-Ray Telescope
May 04, 2018 (SPX)
There, the prototype camera will be integrated into a new telescope that will demonstrate novel technologies for the Cherenkov Telescope Array (CTA), a wide-ran...
Picking one photon out of the flow
May 04, 2018 (SPX)
This work has recently been published and selected as an Editor's Suggestion in Physical Review Letters. This method paves the way towards future quantum commun...
Microscopic roundabout directs light without a magnet
May 04, 2018 (UPI)
Enter the magnet-free optical circulator. The roundabout can route light without the assistance of a tiny magnet. Researchers say it's the first of its kind. Us...
NGC 6231: Stellar Family Portrait in X-rays
May 03, 2018 (SPX)
By studying young star clusters, astronomers hope to learn more about how stars - including our Sun - are born. NGC 6231, located about 5,200 light years from E...
Exhibition explores the Anglo-Saxons knowledge of the skies and the undiscovered planet X
May 03, 2018 (SPX)
The exhibition, entitled 'Marvelling at the skies: comets through the eyes of the Anglo-Saxons' will run at the Ulster Museum in Belfast until Sunday 3 June 201...
The Milky Way Blues
May 02, 2018 (SPX)
Salvesen's recently launched website, Astronomy Sound of the Month or AstroSoM (pronounced "Astro Psalm"), features different sounds produced from actual astron...
Dielectric metamaterial is dynamically tuned by light
May 02, 2018 (SPX)
The results appear on April 9 in the journal Advanced Materials. A metamaterial is an artificial material that manipulates waves like light and sound through pr...
Greenland telescope opens new era of arctic astronomy
May 02, 2018 (SPX)
Taking advantage of excellent atmospheric conditions, the Greenland Telescope is designed to detect radio waves from stars, galaxies and black holes. One of its...
NASA green lights self-assembling space telescope
May 02, 2018 (SPX)
But "far out" is exactly what Dmitry Savransky '04, M.Eng. '05, assistant professor of mechanical and aerospace engineering, and 15 other scientists from across...
The laws of star formation challenged
May 01, 2018 (SPX)
Astronomers had already noticed that the ratio of massive objects to non-massive objects was the same in clusters of star-forming cores as in clusters of newly-...
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