A rare ring of light surrounding a galaxy nearly 590 million light-years away from Earth has been discovered by a space ...

He said: “I walked over to the window and looked out. I saw a bright white ball of light, which measured about 15 feet across. It couldn’t have been any more than 15 feet from me. It made a ...

When exposed to bright white light—essentially the light of a sunny afternoon—the cell's chloroplast shrunk to a ball, reducing its size by about 40% within five minutes. When the light ...