Al Armendariz, the EPA official who said he’d crucify environmental lawbreakers, resigned.

Two of the last few northern white rhinos on earth have done it. (You know, IT.) No word yet if the pair’s expecting a little rhino, but there’s a video, if you want to see what rhino sex looks like.

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The National Zoo’s panda bears were not doing it (not doing it competently, at least) so zookeepers decided to artificially inseminate Mei Xiang. They live-tweeted the operation. Now is your chance to check out the blurry pictures.

BP’s first quarter profits were down compared to 2011.

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Climate skeptics think the clouds will save us. Most scientists are, uh, skeptical of that idea.

Here’s what a sunset looks like on Mars: blue!