Space

One of the most distant quasars known appears to have shut down the formation of new stars in all galaxies […]

One of the most compelling possible signs of extraterrestrial communication may have an astrophysical explanation. Called “Wow!” signal, the bright

A distant stellar nursery holds a cluster of newborn worlds the size of Jupiter, the smallest of which is surrounded

For the first time, scientists have measured a long-sought global electric field in Earth’s atmosphere. This field, called the ambipolar

Black holes about the size of a hydrogen atom may be careening into the solar system without being noticed. But

At the age of 12, Tracy Slatyer felt sorry for a book. She read a newspaper article about how many