Rosetta Is Sending Back Intriguing Data on the Origins of Earth’s Water
While you were worrying about Philae’s landing, the spacecraft Rosetta has been patiently circling the comet, doing its own science. And it’s just dropped some intriguing results into the big debate over how Earth got its water. In case you’re just, ahem, wading in, the origin of Earth’s water has been a great, unsolved scientific…