Astronomy Topics

• Black holes-celestial body, strong gravity, invisible, time doesn't exist inside one, are the evolutionary endpoint of stars, after wards it could leave behind a massive burnout stellar remnant, will not have a chance of living, are prevalent in the universe, first composed in 1783, Albert Einstein brought it to a boom in 1915, masses 20-25 times that of the sun

• Dark energy-I chose dark energy b/c i have no clue what it is and won't chose it b/c i can't find any info on it.
  

• The Moon-It is the second brightest object in the sky. It orbits around the earth once per month. The moon controls the tides, it is Earths only natural satellite. The moon is a cold, dry orb whose surface is studded with craters and strewn with rocks and dust. The moon has no atmosphere.

• Big Bang Theory-I chose this b/c i have heard of it and like the tv show and thats about it but is won't chose this one
  

• Milky Way Galaxy-home of our solar system, galactic center, mass between 750 billion and one trillion solar masses, diameter about 100,000 light years, spiral galaxy, belong to local group, consist of over 400 billion stars, known as home, half a million miles per hr. (sun revolving around it), has a bulge, disc, and halo