General Relativity
Black Holes
The Universe
100
Einstein's theory of gravity
What is General Relativity?
100
The distorted shape a black hole makes in spacetime
What is a singularity?
100
Collection of stars, gas and dust
What is a galaxy?
200
What matter does to the fabric of space
What is distorts?
200
The boundary where light can't escape a black hole.
What is the event horizon?
200
Everything, including billions of galaxies
What is the universe?
300
When light is bent by gravity
What is gravitational lensing?
300
Approximate size of a 1 solar mass black hole
What is 3 km?
400
Because gravity does this, gravitational redshift changes the wavelength of light
What is slows time?
400
Property of the event horizon of a black hole
What is extreme gravity, nothing can escape, very small?
500
The result of small perturbations in spacetime when massive objects interact.
What are gravitational waves?
500
Used to detect black holes in binary systems
What are x-rays or gravitational waves?
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