Benjamin
Dagobah Resident
An update to the 80 mile wide Comet Bernardinelli–Bernstein came out two days ago. A summery can be read at space.com. Some excerpts:
This rock is estimated to weight 500 trillion tons.
A research paper was released Apr. 12, 2022 on this comet. It's very technical and I didn't get into it. But you can find it here: Hubble Space Telescope Detection of the Nucleus of Comet C/2014 UN271 (Bernardinelli-Bernstein)

- This new behemoth of a comet was first observed in 2010.
- This comet is currently far from Earth, zooming along at about 22,000 mph (35,405 kph).
- "This is an amazing object, given how active it is when it's still so far from the sun," study lead author Man-To Hui, a researcher at the Macau University of Science and Technology, said in the same NASA statement.
- ... ALMA's radio observations allowed them to hone in on the object's reflectivity, showing that the comet's surface is darker than they expected.
"It's big, and it's blacker than coal," Jewitt said.
- This comet, being so far from Earth and originating in the farthest-flung reaches of our solar system, is thought to travel on a 3-million-year-long elliptical orbit around the sun. Scientists think that it might travel about half a light-year away from the sun in the farthest parts of its orbit.
This rock is estimated to weight 500 trillion tons.
A research paper was released Apr. 12, 2022 on this comet. It's very technical and I didn't get into it. But you can find it here: Hubble Space Telescope Detection of the Nucleus of Comet C/2014 UN271 (Bernardinelli-Bernstein)
