25 July 2016
Supernova "Matryoshka" Discovered in Local Group
... have found three concentric expanding supernova shells. Superbubbles are created by strong stellar winds and supernova explosions of individual stars, and are very varied in size and structure. The reason for the particular concentric...
03 April 2018
Astronomers unexpectedly find the most distant star ever discovered
... looking for something else. The space telescope had originally been set up to observe a gravitationally lensed supernova explosion nicknamed “Refsdal” in the galaxy cluster MACS J1149-2223, when it unexpectedly picked up the LS1 point source...
30 December 2019
Will Betelgeuse go supernova soon? Probably not say some astronomers
...could still be as long as 100,000 years before the inevitable explosion occurs. Emily Levesque, an astronomer at the University of Washington and...shell of gas and dust that follows the explosion typically travels at around 10,000 kilometres per second...
October 2015
From the kitchen… to the stars?
... temperature with air and the lower limit of its explosive concentration are higher than that of hydrogen and kerosene vapor... additional safety measures, with regards to fires and explosions, besides those that have already been established. Finally...
February 2016
Defending Earth against cosmic hazards
... out into space at the speed of light. This ‘radiation explosion’ is different from a CME (which involves a release of ... into Earth. This event, which was the equivalent to the explosion of tens of thousands of nuclear bombs and blocked out the Sun...
May 2019
Wake-up call for debris creation in geostationary orbit
... what cannot be denied is that debris-creating events are happening in GEO, through incidents like collisions and explosions, in addition to the loss of control of satellites at the end of their operational lives. What is also undeniable is that the...
