News tagged with white dwarf star

Related topics:

How do you jumpstart a dead star?

It's a staple of science fiction, restarting our dying star with some kind of atomic superbomb. Why is our sun running out of fuel, and what can we actually do to get it restarted?

Mar 14, 2014
4.3 / 5 (31) 15

Mach 1000 shock wave lights supernova remnant

When a star explodes as a supernova, it shines brightly for a few weeks or months before fading away. Yet the material blasted outward from the explosion still glows hundreds or thousands of years later, ...

Nov 25, 2013
4.8 / 5 (19) 27 | with audio podcast

White dwarfs hide information on dark forces

Researchers from Europe and the USA have ruled out a multitude of possible parameters for dark photons - a type of dark matter and energy - with the help of white dwarfs. In some aspects, the shining of these ...

Nov 05, 2013
4.3 / 5 (4) 0

Runaway binary stars

CfA astronomers made a remarkable and fortuitous discovery in 2005: an extremely fast moving star, clocked going over three million kilometers an hour. It appears to have been ejected from the vicinity of ...

Oct 07, 2013
4.8 / 5 (12) 0 | with audio podcast

Bright nova in the constellation of Delphinus

A bright nova has recently been discovered in the constellation of Delphinus (The Dolphin). The discoverer was Koichi Itagaki, in Japan who used an 18 cm reflecting telescope with a CCD camera. The nova was ...

Aug 23, 2013
4 / 5 (2) 0

Hubble finds telltale fireball after gamma ray burst

(Phys.org) —NASA's Hubble Space Telescope has provided the strongest evidence yet that short-duration gamma-ray bursts are triggered by the merger of two small, super-dense stellar objects, such as a pair ...

Aug 03, 2013
4.9 / 5 (28) 24 | with audio podcast

NGC 2392: A beautiful end to a star's life

(Phys.org) —Stars like the Sun can become remarkably photogenic at the end of their life. A good example is NGC 2392, which is located about 4,200 light years from Earth. NGC 2392, (nicknamed the "Eskimo ...

Jul 11, 2013
3.8 / 5 (8) 1 | with audio podcast

The remarkable remains of a recent supernova

(Phys.org) —Astronomers estimate that a star explodes as a supernova in our Galaxy, on average, about twice per century. In 2008, a team of scientists announced they discovered the remains of a supernova ...

Jun 26, 2013
4.6 / 5 (9) 2 | with audio podcast