21 February 2018
Oldest known superluminous supernova discovered
... given a large enough sample, scientists could then be able to 'standardise' them as they did with type 1a supernovae. Type 1a supernovae are exploding white dwarf stars and are used in cosmology as typical "standard candles" for measuring the...
12 September 2018
Birth of new star from a supernova seen for first time
...known to be the leftover core of a star that went supernova. However observing the transition from an exploding massive star to ... surroundings. When a pulsar is born form the ashes of the supernova, if it has a magnetic field and rotates fast enough, ...
12 July 2016
Did two ancient supernovas cause cell mutation and climate change on Earth?
... to be very little effect at all," he said. "The supernovae were pretty far way – more than 300 light years – that... only at high altitude." The research suggests that the supernovae might have caused a 20-fold increase in irradiation by muons – ...
22 March 2016
Astronomers catch a supernova shock wave in visible light for the first time
...several weeks or months. However the maximum intensity of a supernova explosion occurs after the shock wave and it is this... of these results," said Garnavich. "You look at two supernovae and see two different things. That's maximum diversity." In ...
14 November 2016
Mysterious Quark Nova lights up an exploding star for a second time
... phenomena from gamma ray bursts through to super-luminous supernovae and a team from the University of Calgary in ..., Wolf-Rayet stars, etc.) if it is massive enough to go supernova and form a heavy neutron star but not too massive to go directly...
02 May 2018
Astronomers spot fastest stars in the galaxy with Gaia
...white dwarf companion. When this happens, it triggers runaway nuclear fusion in the white dwarf, causing it to explode as a supernova. To make matters more interesting, the companion star can be another white dwarf. In this case, a possible mechanism...
