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- Sat Jun 02, 2007 6:27 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: A Hole in Mars (APOD 28 May 2007)
- Replies: 109
- Views: 35813
Re: Black hole on Mars - THE FINAL ANSWER
I've been inside the lava tubes on Lanzarote (Canary Islands) and there are places where the roof has collapsed above a lava tube and you can't see anything inside from above because of the overhanging roof around the holes. I'm fairly confident that this looks like just that sort of thing. Well, a...