Hole

Create simple, countersink, and counterbore holes at sketch points, circle centers, and Mate connectors.

What's a Tree Hollow

What Is a Black Hole?

What is a black hole? - BBC Sky at Night Magazine

Macular Hole: Symptoms, Causes, & Treatment

What Is a White Hole, and Do White Holes Really Exist?

Black Holes

Giant hole appears at 'the end of the world' in Siberia, The Independent

Schematic figure of a blue hole including relevant physical and

Big Hole in Siberia: Why This Enormous Crater Appeared in Russia

M87* One Year Later: Proof of a Persistent Black Hole Shadow

What is a black hole? - Exploring Black Holes