At https://www.spaceweather.com [November 21st 2022] we learn that two months after NASAs DART spacecraft slammed into asteroid Dimorphos, debris from the collision is still visible. The asteroid still has a tail. Did DART create a comet?
The link also provides a photograph of a bright fireball over Ontario. A large meteor broke up in the upper atmosphere, spilling downwards in several pieces. There have been two large meteors exploding in the upper atmosphere this year [classified as small asteroids]. Othjers occurred in 2008, 2014, and 2019 – .see the Minor Planet Center [cenre]. See also https://phys.org/news/2022-11-bright-fireball-meteorites-niagara-region.html … which merely tells us the same story, which includes bits from the explosion falling in the region of Niagara Falls. Most landed in Lake Ontario, it would seem.
At https://phys.org/news/2022-11-mars-huge-unusual-impact-craters.html … in a post also from The Conversation. It spotlight two unusual craters of Mars. One is the Aitken Basin near the south pole of Mars, 2500 km across. However, the main story is more recent, two recent impact events that created Marsquakes recorded by the Mars Reconnaissance Orbiter spacecraft.
At https://phys.org/news/2022-11-short-gamma-ray-distant-universe.html … short gamma ray bursts with an origin in star forming galaxies.