WebJan 15, 2024 · The light from the burst travels through both galaxies on its way to Earth (outside the frame to the right). (Image credit: ESO/L. Calçada) Gamma-ray bursts are the strongest and brightest ... WebSkander NOAMAN posted images on LinkedIn
Marking time: Cosmic ray storms can pin precise dates on history …
Web20 hours ago · A solar storm or gamma ray assault on the scale of the 774–75 C.E. event would similarly turn the night sky into an awe-provoking swirl of crackling, shimmering … WebNov 24, 2014 · Some astrophysicists have suggested a gamma ray burst may have caused the Ordovician extinction, a global cataclysm about 450 million years ago that wiped out … cis-5-tetradecenoylcarnitine
What If a Gamma-Ray Burst Hits the Earth? - YouTube
WebCredit: ESO/L. Calçada. A nearby gamma-ray burst could sterilise Earth. These bursts of energy are so powerful that they can briefly outshine the rest of the Universe. Fortunately, the chance of one occurring nearby is slim. Beaming with energy: The radiation from gamma-ray bursts is strongly beamed in two opposite directions. Certainly, a gamma-ray burst could affect life's DNA, causing genetic damage long after the burst is over. If such a thing happened in Earth's history, it could well have altered the evolution of life on our planet. If a gamma-ray burst hit Earth, these regions of the planet would see higher-than-normal to DNA in … See more Gamma-ray bursts are giant explosions in distant galaxies that send out swarms of powerfully energetic gamma rays. Stars, supernovae and … See more What causes GRBs? For a long time, they remained quite mysterious. They are so bright that at first people thought they might be very close. It now turns out many are very distant, … See more In general, astronomers detect about one burst a day. However, they only detect those that beam their radiation in the general direction of Earth. So, astronomers are … See more Collimating the energy of the blast means that a lot of it gets focused into a narrow beam. If Earth happens to be along the line of sight of the focused blast, instruments detect … See more cisa acting director