Traces of the First Stars in the Universe Possibly Found

An enormous cloud of dust and gas may bear the fingerprints of the first stars in the universe.

The distant cloud contains only a tiny amount of relatively heavy elements, which are manufactured in the hearts of stars, suggesting that these traces may have come from some of the first stars that ever existed.

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6 Mistakes That Can Slow Your Metabolism

The Mistake — You take your coffee decaf.
Why That’s a Problem — You’re missing out in a simple (and delicious) way to temporarily increase your metabolic burn. “Caffeine stimulates your central nervous system,” explains Marisa Moore, RD, in private practice in Atlanta and a past spokesperson for the Academy of Nutrition and Dietetics. “It’s estimated that drinking caffeinated coffee can increase your metabolism by about 15 percent for up to 3 hours.” Add that to the ever-expanding tally of java’s health benefits: lowered risk of cardiovascular disease, diabetes, cognitive decline and, most recently, a decreased risk of premature death.

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SpaceX, Orbital ATK, and Sierra Nevada All Just Booked Space Taxi Contracts with NASA

NASA announced that it has booked three private companies to ferry supplies up to the International Space Station through the next eight years—and the new contracts will allow them to add one new astronaut to their roster.

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