The path of a light beam is bent by the presence of mass, as explained by General Relativity. A massive body can therefore act like a lens—a so called "gravitational lens"—to distort the image of an object seen behind ...
Astronomy
Mar 30, 2020
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493
The Cygnus Loop (also known as the Veil Nebula) is a supernova remnant, the detritus of the explosive death of a massive star about ten to twenty thousand years ago. Detailed modeling of its spectacular filamentary shape ...
Astronomy
Nov 27, 2018
0
44
The distance to celestial objects is key to calculating their intrinsic properties like mass and luminosity. Distance, unfortunately, is also one of the most difficult parameters to measure. The most direct method is called ...
Astronomy
Apr 6, 2015
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68
(Phys.org) —Astronomers are constantly on the hunt for ever-colder star-like bodies, and two years ago a new class of such objects was discovered by researchers using NASA's WISE space telescope. However, until now no one ...
Astronomy
Sep 5, 2013
3
0
Stereoscopic panoramas promise an inviting, immersive experience for viewers but, at high resolutions, distortions can develop that make viewing unpleasant or even intolerable. A team at Disney Research Zurich has found methods ...
Computer Sciences
Jun 21, 2013
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0
(PhysOrg.com) -- Microsoft has unveiled "Street Slide," which gives viewers 360-degree multi-perspective panoramas ("bubbles") of a city streetscape. The system should rival Google's Street View and Bing Maps' Streetside.
Astronomers from the U.S. Naval Observatory (USNO), in collaboration with others from the REsearch Consortium On Nearby Stars (RECONS), have determined new distances to a group of faint young stars located within 25 parsecs ...
Astronomy
Oct 5, 2017
0
9
A metal-poor star located merely 190 light-years from the Sun is 14.46+-0.80 billion years old, which implies that the star is nearly as old as the Universe! Those results emerged from a new study led by Howard Bond. Such ...
Astronomy
Feb 25, 2013
15
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