ScienceDaily: Stars News |
- Astronomers discover first Thorne-Zytkow object, a bizarre type of hybrid star
- First light for SPHERE exoplanet imager: Revolutionary new VLT instrument installed
- Astronomers discover two new worlds orbiting ancient star next door: One may be warm enough to have liquid water
- Hubble unveils new colorful view of the universe
| Astronomers discover first Thorne-Zytkow object, a bizarre type of hybrid star Posted: 04 Jun 2014 08:51 AM PDT In a discovery decades in the making, scientists have detected the first of a 'theoretical' class of stars first proposed in 1975 by physicist Kip Thorne and astronomer Anna Zytkow. Thorne-Zytkow objects are hybrids of red supergiant and neutron stars that superficially resemble normal red supergiants, such as Betelguese in the constellation Orion. They differ, however, in their distinct chemical signatures that result from unique activity in their stellar interiors. |
| First light for SPHERE exoplanet imager: Revolutionary new VLT instrument installed Posted: 04 Jun 2014 06:33 AM PDT SPHERE -- the Spectro-Polarimetric High-contrast Exoplanet REsearch instrument -- has been installed on ESO's Very Large Telescope (VLT) at the Paranal Observatory in Chile and has achieved first light. This powerful new facility for finding and studying exoplanets uses multiple advanced techniques in combination. It offers dramatically better performance than existing instruments and has produced impressive views of dust discs around nearby stars and other targets during the very first days of observations. |
| Posted: 03 Jun 2014 04:40 PM PDT Astronomers have discovered two new planets orbiting a very old star that is near to our own sun. One of these planets orbits the star at the right distance to allow liquid water to exist on its surface, a key ingredient to support life. Kapteyn's Star, named after the Dutch astronomer, Jacobus Kapteyn, who discovered it at the end of the 19th century, is the second fastest-moving star in the sky and belongs to the Galactic halo, an extended group of stars orbiting our Galaxy on very elliptical orbits. With a third of the mass of the Sun, this red-dwarf can be seen with an amateur telescope in the southern constellation of Pictor. |
| Hubble unveils new colorful view of the universe Posted: 03 Jun 2014 12:10 PM PDT Astronomers have assembled a comprehensive picture of the evolving universe — among the most colorful deep space images ever captured by the 24-year-old telescope. This study, which includes ultraviolet light, provides the missing link in star formation. |
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