Astronomers have found the most distant quasar yet seen, and, like a handful of others found at this distance, it presents a huge (literally) problem: The black hole powering it is far too big for how long it's been around.
  • SYFY WIRE
  • Jan 15, 2021

Another record-breaking quasar with a black hole that’s *too* supermassive - SYFY WIRE

Astronomers have found the most distant quasar yet seen, and, like a handful of others found at this distance, it presents a huge (literally) problem: The black hole powering it is far too big for ho… [+5298 chars]

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Martian moons have a common ancestor - Phys.org
  • Phys.Org
  • Feb 23, 2021

Mars's two moons, Phobos and Deimos, have puzzled researchers since their discovery in 1877. They are very small: Phobos's diameter of 22 kilometers is 160 times smaller than that of our moon, and Deimos is even smaller, with a diameter of only 12 kilometers.…...