Blazar

Supermassive Black Hole Orbits an Even More Massive Black Hole, Crashing Through its Accretion Disk Every 12 Years

Recent observations by the now-retired Spitzer mission have led to accurate predictions OJ 287, a blazar that contains a supermassive…

2 years ago

18 Billion Solar Mass Black Hole Rotates At 1/3 Speed Of Light

An international team of astronomers recently measured the rotation rate of one of the most massive black holes known ...…

6 years ago

Observing Alert: Distant Blazar 3C 454.3 in Outburst, Visible in Amateur Telescopes

Have an 8-inch or larger telescope? Don't mind staying up late? Excellent. Here's a chance to stare deeper into the…

8 years ago

Bright Blazar’s Emission Defies Explanations

When it comes to sheer wattage, blazars definitely rule. As the brightest of active galactic nuclei, these sources of extreme…

9 years ago