James Webb Space Telescope finden Sie den ersten Blick auf den Interstellar Comet 3i/Atlas mit unerwarteten Ergebnissen
https://www.space.com/astronomy/james-webb-space-telescope-takes-1st-look-at-interstellar-comet-3i-atlas-with-unexpected-results
James Webb Space Telescope finden Sie den ersten Blick auf den Interstellar Comet 3i/Atlas mit unerwarteten Ergebnissen
https://www.space.com/astronomy/james-webb-space-telescope-takes-1st-look-at-interstellar-comet-3i-atlas-with-unexpected-results
3 Kommentare
Well darn. I was hoping it was an interstellar alien probe.
ELI5 how they can tell its age of “could be 7 billion years old” when they’re basically learning the makeup of the thing as we speak.
I mean, it could be 8 billion years old, or 13 billion years old.
„a team of astronomers that observed the comet with the[ JWST](https://www.space.com/21925-james-webb-space-telescope-jwst.html) explains that studying comets like this from other star systems helps to study what conditions were like in those systems as they were forming. Those results can then be compared to what scientists have learned about the conditions around the sun 4.6 billion years ago, when the planets, asteroids, and comets of the solar system were forming.
When comets approach the sun and are warmed by its heat, frozen materials within them are transformed from solids straight into gases. This results in gases escaping, a process called „outgassing,“ creating the characteristic tail and halo, or „coma,“ of a comet.“