It measures 130 to 300 feet across, a pebble compared to the asteroid that killed the dinosaurs, which is estimated to have been six to nine miles in length. On the other hand, on Feb. 15, 2013, an ...

While radio jets are relatively common in the nearby Universe, they have been elusive in the early Universe. This is partly ...

Not every experimental jet fighter made by the U.S. military would go on to reach production, for any number of reasons.

Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is ...