Space.com on MSN

Interstellar comet 3I/ATLAS isn't an alien spacecraft, astronomers confirm. 'In the end, there were no surprises.'

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...
ZME Science on MSN

Astronomers “Weigh” a Rogue Planet and Pin Down Mass and Distance for a Starless World

The team’s analysis points to a lensing object with a mass of 0.219 Jupiter masses, a touch lighter than Saturn or around 70 ...