“It’s exciting to observe these events and finally understand why they occur-but thankfully Earth won’t be anywhere near one of these apocalyptic episodes for quite some time.”Ĭosmic time is, thankfully, on our side. “Quasars are one of the most extreme phenomena in the Universe, and what we see is likely to represent the future of our own Milky Way galaxy when it collides with the Andromeda galaxy in about five billion years,” said Professor Clive Tadhunter, from the University of Sheffield’s Department of Physics and Astronomy. When our Milky Way galaxy inevitably collides with the nearby Andromeda galaxy in four billion years a quasar could well be the result. ![]() “Quasars play a key role in our understanding of the history of the Universe, and possibly also the future of the Milky Way.” ![]() ![]() “One of the main scientific motivations for NASA’s James Webb Space Telescope was to study the earliest galaxies in the Universe, and Webb is capable of detecting light from even the most distant quasars, emitted nearly 13 billion years ago,” said Dr Jonny Pierce, Post-Doctoral Research Fellow at the University of Hertfordshire. It matters because a quasar can blow the rest of the gas out of the galaxy, which prevents it from forming new stars for billions of years.
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