CIERA

two stars creating radio pulse

First Radio Pulses Traced to Dead-Star Binary

An international team of astronomers, including a Northwestern University astrophysicist, has traced a series of mysterious radio pulses to an unprecedented home.

Starting a decade ago, astronomers have detected a pulse of radio emission every two hours, coming from the …


black holes and light spinning around their orbits

Black Holes’ Spins Align in a Valentine’s Embrace

Most people have heard of “love at first sight.” But how about “love at first collision?”

In a study fit for Valentine’s Day, Northwestern University astrophysicists discovered that binary black holes — when formed in crowded clusters of stars — …