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

An astronomer has given an explanation after people spotted a 'bright meteor' coming down ... some posting dashcam footage of the large ball of light hurtling through the sky.

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 ...