Astronomers have uncovered a spiral galaxy nearly a billion light-years away that hosts a supermassive black hole launching colossal jets of energy, something once thought possible only in elliptical ...

Cutting holes in framing for pipes and wires. Instead of a blade, a rotary saw (AKA a spiral saw, rotary cutter or the brand ...

Starting with the blade inserted into a through-hole, the saw slowly cuts a beautiful nested spiral down the length ... things do get a bit wobbly as the cut progresses, but in general the jig ...

It features an easy-to-read digital thickness readout, micro-adjustable depth stop, powerful 2hp motor, and a spiral cutterhead that provides a quieter cut with reduced tear-out, and 32 indexable ...

This galaxy's central black hole appears to be a "messy eater" as its interstellar scraps are strewn into space. A distant galaxy is home to a ravenous supermassive black hole that appears to be ...

The behemoth, nicknamed J2345-0449, is a giant radio galaxy, or "super spiral" galaxy roughly three times the size of the Milky Way.Like our own spiral galaxy, it harbors a supermassive black hole ...

The black holes -- which represent those detected by LIGO on Dec. 26, 2015 -- were 14 and eight times the mass of the sun, until they merged, forming a single black hole 21 times the mass of the sun.