News tagged with white dwarfs

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NASA’s STEREO spots a new nova

While on duty observing the Sun from its position in solar orbit, NASA’s STEREO-B spacecraft captured the sudden appearance of a distant bright object. This flare-up turned out to be a nova — designated ...

May 01, 2012
5 / 5 (4) 1 | with audio podcast

The Helix Nebula in new colors

(PhysOrg.com) -- ESO's VISTA telescope, at the Paranal Observatory in Chile, has captured a striking new image of the Helix Nebula. This picture, taken in infrared light, reveals strands of cold nebular gas ...

Jan 19, 2012
4.3 / 5 (6) 0 | with audio podcast

Origin of thermonuclear supernova discovered

(PhysOrg.com) -- Using NASA’s Hubble Space Telescope, astronomers have solved a longstanding mystery on the type of star, or so-called progenitor, which caused a supernova seen in a nearby galaxy. The ...

Jan 11, 2012
5 / 5 (3) 4 | with audio podcast

The progenitor problem

With so much of our current understanding of the universe based on Type 1a supernovae data, a good deal of current research is focused upon just how standard these supposed standard candles are. To date, the ...

Nov 28, 2011
5 / 5 (8) 4 | with audio podcast

Ancient white dwarf stars

(PhysOrg.com) -- Pushing the limits of its powerful vision, NASA's Hubble Space Telescope uncovered the oldest burned-out stars in our Milky Way Galaxy in this image from 2002. These extremely old, dim "clockwork ...

Nov 03, 2011
3.7 / 5 (3) 2