Black Hole on Earth: The 'World's Darkest Material' That Absorbs Up To 99.965% of Visible Light

The blackest of all blacks.

What is a black hole, and how does it create singularity? - Quora

What are the parts of a black hole? - Quora

Why do we see black holes black instead of distorted colors of the space objects? - Quora

This Manmade Material Is Nearly as Dark as a Black Hole

Black hole discovered as the closest known to Earth, astronomers say

Black Hole on Earth: The 'World's Darkest Material' That Absorbs

New Super Black Material Absorbs 99.965% Of Light

Black holes may lurk much closer to Earth than we thought: Astronomer claims 'two or three' voids could be hiding just 150 light-years away

Does a black hole emit light? - Quora