Relativistic jets are some of the universe's most powerful particle accelerators, and they're not typically found in spiral galaxies. Adding to the mystery was the size of J2345-0449's black hole, ...

For the first time, researchers have shown that terahertz imaging can be used to visualize internal details of the mouse ...

Mysterious markings were reported in the sky on Monday night, but the explanation for them is more manmade than ...