1
Light tells the story of the universe. Since light takes time to travel, the farther out into space we look:
2
What is the most distant thing in space that we can see without a telescope?
3
In the 1920s, Edwin Hubble and fellow astronomers at Mount Wilson Observatory were the first to discover galaxies beyond the Milky Way. What else did they discover?
4
According to the Big Bang theory, the universe was born about 13.8 billion years ago. At the moment of the Big Bang, the universe was:
5
In 1964, astronomers working with a radio telescope in New Jersey accidentally discovered something that came to be known as the cosmic microwave background. What was it?
6
In 2009, the Planck satellite was launched into space to measure light in the microwave band. It orbits:
7
Albert Einstein's famous equation E=mc2 shows the relationship been an object's mass (m) and its energy (E). What does 'c' represent?
8
Normal matter is everything we can touch and see, including dogs, trees, planets, stars, and galaxies. It makes up how much of the total mass-energy in our universe?
9
Dark matter is invisible, so how do scientists know it exists?
10
How did dark energy get its name?