For more information about white dwarf check the Wikipedia article here
Supernovae are highly energetic events caused by the explosion of stars that are at times so bright they can outshine whole galaxies. These are thought to occur in two varieties, but a recently published paper has a described a third type of supernova, one that’s fainter than the other two and distinguishes itself by the [...]
Tue, Feb 26, 2013
Though hundreds of potentially life harboring exoplanets have been discovered thus far, until the James Webb Space Telescope becomes operational, sometime around 2018, scientists today lack the resources to peer into the guts of these planet and determine a realistic chance of hosting life. Even when the JWT goes live, however, it will take hundreds [...]
Wed, Mar 21, 2012
Supernovae are one of the most energetic and brightest events in the cosmos, often so powerful they outshine whole galaxies. They’re considered to play a major role in our understanding of the Universe, which is why scientists have invested so much time and effort into studying them. A recent study of X-ray and ultraviolet observations from [...]
Wed, Mar 23, 2011
Astronomers usually classify stellar objects by a spectra going from hotter to cooler, using the letters O, B, A, F, G, K, and M. As observational technology progressed and a myriad of new astronomical findings were made, in the last 15 years alone two new classes L and T emerged designed to describe ultracool brown [...]
Sat, Dec 4, 2010
A supernova is a stellar explosion of cosmic proportions, that often can outshine the entire galaxy it is located in, before fading away in a matter of weeks or months. During this short period however, supernovae emit as much energy as the Sun emits during its entire life span – it’s the same kind of [...]
Tue, Dec 16, 2008
Astronomy & Astrophysics has published spectroscopic observations of one of the hottest stars discovered so far – a white dwarf called KPD 0005+5106. The observations were made using the space-based Far-Ultraviolet Spectroscopic Explorer (FUSE), showing that the temperature can reach 200 000 K at the surface of the star. Temperatures can get so high that [...]
Thu, Nov 22, 2007
We have another piece of evidence which goes to show that we fail to understand numerous things about our universe. Astronomers have discovered white dwarf stars with pure carbon atmospheres. It is something that probably nobody would have believed. The exact way these stars evolved is still pretty much a mystery for astrophysicists. They believe [...]
CT scan images caterpillar to butterfly metamorphosis in 3-D
Some photos of the amazing sun halo hovering over NYC
Record level atmospheric CO2. Reaches 400 ppm for the first time in 3 million years
Neurobiologist can see in 3-D after being stuck in 2-D for 48 years. [amazing brain adaption]
Women may live longer than men due to stronger immune system
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Wed, Mar 27, 2013
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