来自MSN1 个月
Rare ancient comet passes Earth after 80,000 years: Here’s when and how to get the best view
The astronomers watched a rare comet that passed over the Earth, which was last seen 80,000 years ago. The ancient comet has appeared since the age of human civilizations, and it is a rare ...
来自MSN3 个月
Scientists hail scientific legacy of comet-chasing Rosetta probe on 10th anniversary
A decade ago, scientists at the European Space Agency (ESA) had just wrapped up the yearslong process of building a ...