Planetary fragments orbiting dead star hints at what Earth’s final days might look like

The surviving fragments of planet orbiting a white dwarf have been found by a team of astronomers.

White dwarf goes nova after a long slumber

Polish astronomers have captured an incredibly rare event from start to finish: a white dwarf going nova.

Scientists discover first pulsing white dwarf binary star

Every two minutes, this pulsing star lights up the entire star system.

Hubble captures the death of a star, offering a glimpse of our sun’s final days

A spectacular image captured by the Hubble Space Telescope’s Wide Field Planetary Camera 2 (WFPC2) gives us a glimpse into how the Sun will look at its death.

Pulsars with black holes could hold the ‘holy grail’ of gravity

Pulsars and black holes, two of the most enigmatic celestial bodies in the Universe may actually hold the key to understanding how Einstein’s theory of relativity and gravity interact. A pulsar is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation. Pulsars are from when a star that turns becomes a supernova and then collapses into a neutron star;

New type of supernova discovered. Hint: it’s tiny and faint

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 fact that its parent star

Alien life hunters hold white dwarf stars as safest bet

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 of hours of observations to

Astronomers paint a clearer picture of how supernovae are born

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 NASA’s Swift satellite has helped

Coldest star so far found – not hotter than a cup of coffee

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 dwarfs. A recent scientific finding

Physicists create a supernova in a jar

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 phenomena that researchers from the

White dwarf considered the hottest ever discovered

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 the emission lines are exhibited

Astronomers Discover Stars With Carbon Atmospheres

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 that this kind of stars