The International Space Station captured a stunning view of the intensifying Hurricane Dorian in the Caribbean as it moved toward the U.S. ...

At a Glance The supermassive black hole at the center of the Milky Way suddenly lit up in May.Astronomers say the black hole called Sagittarius A* grew 75 times brighter in just two hours. In mid-May, a supernova black hole at the center of our Milky Way galaxy became 75 times brighter within a span of two hours, and scientists have yet to determine why it happened. Sagittarius A* (Sgr A*) flares brighter from time to time but nothing quite...

Scientists are seen shoveling snow into the sack of the snowmelt. (Photo: Martin Leonhardt, Alfred-Wegener-Institut) At a Glance Researchers melted and strained a half-ton of frozen snow shipped from the South Pole.The same substance had already been found deep under the Pacific Ocean.The recent finding was in snow that's only about 20 years old. Some 20 years ago, researchers discovered ancient stardust buried deep in the floor of the Pacific Ocean. They deduced that the stardust – actually a substance...