Planets/Moons
This planet is the 3rd the sun. It has a large amount of water on its surface and is the only planet that currently has conditions which sustain life as we know it.
What is Earth?
The currently theorized age of the universe
What is 13.8 billions years?
The Hubble classification of the galaxy we live in
What is Spiral?
The curvature of spacetime caused by an object with mass
What is gravity?
Hottest planet in the solar system
What is Venus?
A mysterious force/energy that we theorize makes the universe expand
What is the Dark Energy?
Densest objects in the universe
The orbit of each planet around the Sun is an ellipse
What is Kepler's First Law?
Number of moons Jupiter has as of March 23, 2023.
What is 95?
What we theorize makes galaxies spin faster than we expected
What is the Dark Matter?
These types of galaxies are generally older and redder.
What is an elliptical galaxy?
The radius vector to a planet orbiting the Sun sweeps out equal areas in equal time
What is Kepler's Second Law?
Approximately how long it takes light to travel from earth to the moon (in seconds, to the nearest whole number)
What is 1 second?
The theorized approximate value of Hubble's Constant in km/s/Mpc
(If you get it in the right range I'll give it to you)
What is 68-72 km/s/Mpc?
The radius below which the gravitational attraction between the particles of a body cause it to undergo irreversible gravitational collapse
R = 2GM/c^2
What is the Schwarzchild Radius?
T^2 = 4π^2/GM * r^3
(Technically T^2 = 4π^2/G(M_1+M_2) * r^3)
What is Kepler's Third Law?
Angular diameter of the full moon (to the nearest half-degree)
What is 0.5°?
The universe is homogenous on a sufficiently large scale
What is the Cosmological Principle?
The Hubble classification of a galaxy with a central bulge and disk but no arms
What is a lenticular galaxy?
v = √(2GM/R)
What is Escape Velocity?