News Astronomy

Eclipsing a black hole

By Ron Cowen

- More than 2 years ago

A chance eclipse has enabled astronomers for the first time to measure the width of a disk of swirling, hot matter around a supermassive black hole.

BLOCKING BLACKNESS. These X rays come from the supermassive black hole at the core of the spiral galaxy NGC 1365. Last year, a cloud obscured them.