Images

Scientists at Massachusetts Institute of Technology (MIT) have created the thinnest existing solar cell, which is light enough to sit on top of a soap bubble without popping it.

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Justinling/CC-by-2.0 Paroxetine can improve cognitive function in patients with HIV.

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Justinling/CC-by-2.0 Paroxetine can improve cognitive function in patients with HIV.

Sanjay Acharya/cc-by-sa-3.0 Researchers modified the gene expression of the gut cells of fruit flies to change the cells’ sex.

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Sanjay Acharya/cc-by-sa-3.0 Researchers modified the gene expression of the gut cells of fruit flies to change the cells’ sex.

Harry W. Frees/Wikimedia Commons A dog teaches three kittens how to spell and do basic addition. This is a real photograph with real animals.

Harry W. Frees/Wikimedia Commons Two cats carry a line of dead fish. Frees actually staged the kittens with the props and costumes.

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Harry w. Frees/wikimedia Commons A dog teaches three kittens how to spell and do basic addition. This is a real photograph with real animals.

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Harry w. Frees/wikimedia Commons A dog teaches three kittens how to spell and do basic addition. This is a real photograph with real animals.

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Harry W. Frees/Wikimedia Commons Two cats carry a line of dead fish. Frees actually staged the kittens with the props and costumes.

Rollin Hu

Gillian Lelchuk

Mike Mozart/ CC BY 2.0 Kraft Macaroni and Cheese is sold in many shapes, like SpongeBob.

Bill Toenjes/CC BY-NC-ND 2.0 Lisa Simpson became vegetarian in an episode of The Simpsons.

Lan Bui/CC BY-SA 2.0 Lisa Kudrow played vegetarian Phoebe Buffay in the sitcom Friends.

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Lan Bui/CC BY-SA 2.0 Lisa Kudrow played vegetarian Phoebe Buffay in the sitcom Friends.

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Mike Mozart/ CC BY 2.0 Kraft Macaroni and Cheese is sold in many shapes, like SpongeBob.

Hayley Bronner