What if there was a black hole the size of an atom?

Despite having roughly the mass of a thousand sedans, a mini black hole would be smaller than an atom. At that size the black hole wouldn’t swallow much matter and would instead mostly trap atoms and some larger molecules into circling orbits—in much the same way that protons in atoms capture and bind electrons.

How big across would the Earth be if it were turned into a black hole?

After just a few minutes more — 21 to 22 minutes total — the entire mass of the Earth would have collapsed into a black hole just 1.75 centimeters (0.69”) in diameter: the inevitable result of an Earth’s mass worth of material collapsing into a black hole.

What would happen if we made a small black hole?

What would happen if an asteroid-mass black hole were to hit Earth? In short, catastrophe. The black hole would puncture our planet’s surface like a hot knife through butter, but it would immediately begin to slow down because of its gravitational interaction with Earth.

How does the diameter of a black hole meaning the size of the event horizon depend on the mass inside the black hole?

How does the diameter of a black hole (size of the event horizon) depend on the mass inside the black hole? The greater the mass, the greater is the diameter. almost all galaxies contain supermassive black holes.

What would happen if you got inside a black hole?

If you got into the event horizon, your perception of space and time would entirely change. At the same time, the immense gravity of the black hole would compress you horizontally and stretch you vertically like a noodle, which is why scientists call this phenomenon (no joke) “spaghettification.”

What happens when a neutron star becomes a black hole?

If you add mass beyond the maximum stable size of a neutron star, you get a neutron star supernova, and then collapse to a black hole (you can also form black holes directly from a star, of course).

Is it possible to create a penny-sized black hole?

Theoretically yes, but practically it would be impossible to create a penny-sized black hole here on Earth. Forming a penny-sized black hole on Earth would take a huge amount of mass and a method of condensing that mass into a tiny area.

Do black holes get bigger when they eat material?

Yes. The late physicist Stephen Hawking proposed that while black holes get bigger by eating material, they also slowly shrink because they are losing tiny amounts of energy called “Hawking radiation.” Hawking radiation occurs because empty space, or the vacuum, is not really empty.