Sentences with phrase «as supernovas accelerate»

Various lines of evidence, including observations from NASA's Fermi Gamma - ray Space Telescope, support the idea that shock waves from the expanding debris of stars that exploded as supernovas accelerate cosmic rays up to energies of 1,000 trillion electron volts (PeV).

Not exact matches

Scientists suspect some sources: the Big Bang itself, shock waves from supernovas collapsing into black holes, and matter accelerated as it is sucked into massive black holes at the centers of galaxies.

We know from very precise supernova observations that the universe is accelerating, but at the same time we rely on coarse approximations to Einstein's equations which may introduce serious side - effects, such as the need for dark energy, in the models designed to fit the observational data.»

The supernova explosions that follow further whip up those shock waves, and then violently accelerate the material from previous supernovas as well.