- #1
fred20
- 5
- 0
I was just watching the time-lapse footage of the Philae landing and was wondering:
How does a comet acquire and keep a dust layer on it's surface?
Can anyone say?
It just seems a bit odd to me.
How does a comet acquire and keep a dust layer on it's surface?
Can anyone say?
It just seems a bit odd to me.