News tagged with white dwarfs

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Music of the spheres: Star Songs

(Phys.org) —Plato, the Greek philosopher and mathematician, described music and astronomy as "sister sciences" that both encompass harmonious motions, whether of instrument strings or celestial objects. ...

dateJun 04, 2013 in Astronomy
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New Greek observatory sheds light on old star

(Phys.org)—Continuing a tradition stretching back more than 25 centuries, astronomers have used the new 2.3-m 'Aristarchos' telescope, sited at Helmos Observatory (2340m high) in the Pelοponnese Mountains ...

dateFeb 28, 2013 in Astronomy
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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 ...

dateNov 03, 2011 in Astronomy
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Are stellar explosions created equal?

Cosmic distances are difficult to grasp and no less difficult to measure. When it comes to other galaxies or even remote parts of our own Milky Way, distance measurements are nothing but assessments, derived from indirect ...

dateAug 22, 2011 in Astronomy
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White Dwarf Stars Consume Rocky Bodies

“I love rocky road… So won’t you buy another gallon, baby…” Yeah. We all love rocky road ice cream, but what do stars like to snack on? In the case of the white dwarf star it would ...

dateAug 16, 2011 in Astronomy
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A cosmic inkblot test

(PhysOrg.com) -- If this were an inkblot test, you might see a bow tie or a butterfly depending on your personality. An astronomer would likely see the remains of a dying star scattered about space -- precisely ...

dateAug 11, 2011 in Astronomy
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Pan-STARRS discovers two super supernovae

Supernovae are the brightest phenomenon in the current universe. As massive stars die as supernovae, they briefly outshine the rest of the stars in their galaxy and are visible, at least once the light gets ...

dateJul 22, 2011 in Astronomy
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Binary white dwarf stars

(PhysOrg.com) -- When a star like our sun gets to be very old, after another seven billion years or so, it will no longer be able to sustain burning its nuclear fuel.

dateMay 04, 2011 in Astronomy
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The Ring Nebula

The diversity of colours, shapes, and sizes of planetary nebulae make them fascinating objects. In this photo release Calar Alto presents a rather unique view combining both optical and near-infrared data ...

dateNov 02, 2009 in Astronomy
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Supernova remnant is an unusual suspect

A new image from NASA's Chandra X-ray Observatory shows a supernova remnant with a different look. This object, known as SNR 0104-72.3 (SNR 0104 for short), is in the Small Magellanic Cloud, a small neighboring ...

dateJun 09, 2009 in Astronomy
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