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

The blackest of all blacks.

The blackest acrylic paint in the world - Black 3.0 – Culture Hustle

Standard Model of Cosmology Survives JWST's Surprising Finds

Astronomers detect the closest example yet of a black hole devouring a star, MIT News

First detection of light from behind a black hole

What is the darkest known material in the universe? - Quora

Absorption / reflection of sunlight - Understanding Global Change

Is 'Planet Nine' actually a grapefruit-sized black hole? Big new telescope could find out

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

A Black Hole Lurks in a Galaxy Near Our Own - Sky & Telescope - Sky & Telescope