A person stands near a puddle in a dark, foggy forest. In 2007, 17-year-old Sarah Stusek woke up at 4 a.m. The lights were mysteriously turned on. Her phone was gone. She looked up to see a man ...

Dark matter can make dark atoms, say theoretical astrophysicists May 12, 2023 Supercomputer provides new suite of Lyman-α forest simulations for illustrating large-scale structure of universe ...

The air temperature hovers around zero — the lower limit of what Cross considers safe conditions for black bear work — but inside the bear’s lair it’s a balmy 32.