来自MSN5 个月
Asteroid 20 times bigger than dinosaur killer altered Ganymede's position
He added that the impact affected the interior structure of Ganymede "significantly". This is clear from the size of the transient crater as it makes up for 25 per cent of the size of Ganymede.
ZME Science on MSN5 个月
Colossal Asteroid, 20 Times the Size of Dinosaur-Killer, Struck Solar System’s Largest ...
The researcher found the collision didn’t just reorient the moon; it likely also had a lasting effect on Ganymede’s internal ...