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Want to find a black hole? Pick up a rock

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This artist’s concept shows many tiny primordial black holes. Credit: NASA’s Goddard Space Flight Center While black holes are perplexing at any size, some of the most mysterious are hypothetical primordial black holes, those that sprung into existence in the first second after the Big Bang and some of which are featherweights on the black … Read more

Who is Jared Isaacman, Trump’s pick for NASA chief?

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U.S. President-elect Donald Trump has nominated Jared Isaacman, a billionaire, philanthropist and private astronaut to lead NASA. What do we know about the potential next administrator of America’s space agency? Isaacman, born in Union, New Jersey in February 1983, is worth an estimated $1.8 billion, according to Forbes. He accrued this fortune from his payment-processing … Read more