This week: a salute to the platypus, a fire burns for 5,000 years, and a town in Argentina sinks -- then reappears.
Winners of the annual Ocean Art Photography Photo Competition represent some of the best underwater photography of last year.
This week: See some of our favorite recent shots of Planet Earth from space.
A winter storm dubbed Gorgon by the Weather Channel dropped snow and snarled traffic from the Midwest to the Northeast.
Check out the 10 most striking photos of our planet -- and life on it -- that we've come across all year.
If you were interested in freaky weather, 2014 had it all: snow in full effect, super storms and a drought for the ages.
A 10,000-year-old woolly mammoth skeleton goes on auction, a super typhoon menaces the Philippines and we get two very different views of an eruption off the coast of Africa.
The photos capture Mars passing below two objects known as the Lagoon and Trifid nebulas, both in the constellation Sagittarius.
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