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Astronomy (Nerdy Round)

One

Which was the first celestial body to be identified as a black hole?
Click to Flip
Cygnus X-1

Two

What type of celestial body was first observed by Jocelyn Bell Burnell and Antony Hewish?
Click to Flip
Neutron stars

Three

What visible cue can you find that would warn you of a nearby black hole?
Click to Flip
An accretion disk

Four

What physical quantity needs to be measured to determine the Schwarzschild radius of a body?
Click to Flip
Its mass alone determines the size it would have if it becomes a black hole.

Five

The "black holes have no hair" theorem says that almost all information about the matter that falls into a black hole is destroyed in the process. What three quantities are exceptions to this rule?
Click to Flip
Mass, net electric charge, and net angular momentum.

Six

Which element has the highest atomic number of all elements created in the Big Bang?
Click to Flip
Iron, with atomic number 26. A supernova is the only known natural process to produce any higher elements.

Seven

How would your perception of reality differ if you were inside the event horizon of a black hole, but somehow still alive?
Click to Flip
Our uncontrollable travel through time would halt, allowing us to freely move through time, but that uncontrollable travel would shift to the radial direction, drawing us inevitably to the singularity at the core of the black hole.

Eight

The first galaxy ever discovered was originally misidentified as what?
Click to Flip
The Andromeda Galaxy was mistaken for a nebula

Nine

What is the Schwarzschild radius of the Earth?
Click to Flip
0.887cm, or 0.349 inches. It's safe to say our planet will not become a black hole any time soon.

Ten

When was the first comet discovered by telescope?
Click to Flip
1680
It was known as the Great Comet of 1680, Kirch's Comet, and Newton's Comet

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