... Giant sunspot 798/808 flared twice more yesterday, and at least one of the X-class explosions propelled a coronal mass ejection (CME) toward Earth. ...
... Objectives include a study of the conditions necessary to avoid a supernova explosion, and a comparison with observed properties of evolved stars including hot subdwarfs. ...
... temperature, the ignition of helium causes a runaway explosion throughout the core ... star to another can also lead to supernova explosions, often referred to as Type I ...
... The event, dubbed GRB 090423, is the most distant cosmic explosion ever seen. ... Swift quickly pinpointed the explosion, allowing telescopes on Earth to target the ... in Chile and the Canary Islands independently measured the explosion's redshift ...
... Gamma-ray bursts (GRBs) are the most powerful explosions in the universe. ... The explosions release most of their energy as gamma-rays, hence the name. ... brightness of the burst they would be able to calculate the energy of the explosion ...