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Snow science: Crystal clues to climate change, watersheds

HIGHMOUNT, N.Y. — Capturing snowflakes isn’t as easy as sticking out your tongue.

At least not when you’re trying to capture them for scientific study, which involves isolating the tiniest of crystals on a metal card printed with grid lines and quickly placing them under a microscope to be photographed.

Trump plan ends research on uranium mining near Grand Canyon

FLAGSTAFF, Ariz. — U.S. scientists studying the effects of uranium mining around the Grand Canyon say they are lacking information on whether the radioactive element is hurting plants, animals and a water source for more than 30 million people.

And they would not get to fully gather it if President Donald Trump’s 2019 budget proposal is approved.

Astronomers glimpse cosmic dawn, when the stars switched on

WASHINGTON — After the Big Bang, it was cold and black. And then there was light. Now, for the first time, astronomers have glimpsed that dawn of the universe 13.6 billion years ago when the earliest stars were turning on the light in the cosmic darkness.

And if that’s not enough, they may have detected mysterious dark matter at work, too.