When was the Universe the MOST compact, from these choices?
How far away from outer space are you RIGHT NOW?
The universe includes all of , all the matter and that space contains, and even itself.
space
time
energy
The currently accepted age of the Universe is approximately years old.
13.8 million
47
36 million
13.8 billion
4.6 billion
Observable matter makes up less than of the universe's total mass-energy content. The two mysterious components that make up the majority of the universe are dark energy () and dark matter (). All of these added together make up .
100%
27%
5%
68%
13.8%
Which of the following count as "observable matter" present in the universe? Pick all that apply, and please remember that the number of correct selections is not always equal to the number of points for the question!
Before our ancestors had means of understanding the universe, they created to explain the of everything. Because our ancestors themselves invented them, the myths reflect , hopes, aspirations or fears rather than the nature of .
skeletons
origins
reality
myths
opera
fate
coprolites
human concerns
mathematical calculations
Why are dark matter and dark energy called "DARK"?
Which of the following are actual technologies and discoveries that have been made in the last 150 years?
Pick all that apply, and please remember that the number of correct selections is not always equal to the number of points for the question!