Word: planetsized
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“We think the planets will remain in alignment if, for example, a semester of tutorial has to be missed,” Kirby said.
Birkeland, a native Norwegian, spent a year on a remote Finnish mountain tracking the magnetic fields of the Earth and their relationship to the auroras, the so-called northern lights. At the end of the nineteenth century, the setting of Jago’s account, the northern lights were still...
Apart from satisfying our curiosity about how the moon formed, the new work has broader implications. Explains Asphaug: "It's now known that giant collisions are a common aspect of planet formation, and these big impacts might go a long way toward explaining the puzzling diversity observed among planets." That...
It was that display of intellectual honesty, Spergel suspects, that earned him an invitation to work on the microwave satellite. And once having tasted the pleasures of actual rocket science, he could hardly resist an invitation to help design a second spacecraft. The goal of this new mission is to...
As usual, Spergel knew very little when he began. So, he says, "I got a book and taught myself optics." The result: a revolutionary idea for a telescope that could spot a dim planet in the glare of a bright star, potentially saving NASA billions of dollars and advancing the...