THE PERIPHERY Largest Cave in the World Discovered
In 1991, Vietnamese man Ho Khanh was wandering the wilderness of Phong Nha-Ke Bang National Park:
He didn't want to investigate, though, because there was quite a drop-off to get down there. So he ... Posted on 9/10/13 at 8:44 AM
ASTRO BOB Comet Elenin is fading; Doodlebugs on Mars?
The other day I wrote how unpredictable comets can be, one of the main reasons they're so fun to follow by eye and telescope. After a nice show of steady brightening in the last few weeks, at least ... Posted on 8/23/11 at 1:16 PM
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