A blazar is an active galactic nucleus, essentially a galaxy with a supermassive black hole at its heart, devouring ...

The Pentagon’s hypersonic ambitions have become a magnet for rumor, with online sleuths convinced a secret “ghost jet” is already streaking through the upper atmosphere while official programs stumble ...

There are rules to modern aviation, and then there are the anomalies that completely go against them. When a commercial airliner drops off civilian radar ...