Supermassive black holes can fuel their own growth by cooling and recycling gas, creating a continuous cycle of feeding and outbursts. The central regions of galaxy clusters host the universe’s ...
Scientists are constantly unraveling the universe’s greatest riddles, but many fundamental puzzles remain unsolved. How did life first emerge on Earth? What ...
The first U.S. military flight to deport migrants from the United States to Guantanamo Bay was set to depart Tuesday, a U.S. official said. It is the first step in what is expected to be a surge in ...