Show:
NASA History
Current NASA
Scientists and Engineers
Our Solar System
The Milky Way and the Universe
100
The name of the first U.S. human spaceflight program.
What is Project Mercury?
100
The date that the Curiosity rover landed on Mars.
When is August 5, 2012?
100
He said "The cosmos is all that is, or ever was, or ever will be."
Who is Carl Sagan?
100
The unit that refers to the average distance between the Earth and the Sun.
What is an astronomical unit (AU)?
100
The portion of the universe that we can see in principle, given the current age of the universe.
What is the observable universe?
200
The date that Apollo 11 landed on the moon.
When is July 20, 1969?
200
The name of the satellite that reached interstellar space in August 2012.
What is Voyager 1?
200
He discovered the laws of planetary motion?
Who is Johannes Kepler?
200
The plane of Earth's orbit around the Sun.
What is the ecliptic plane?
200
The gas and dust that lies in between the stars in the Milky Way galaxy.
What is the interstellar medium?
300
The Challenger orbiter exploded this many seconds after launching.
What is 73 seconds?
300
The current NASA administrator.
Who is Charles F. Bolden?
300
He calculated the Earth's circumference with amazing accuracy.
Who is Eratosthenes?
300
The theory that states that our solar system was formed from the collapse of an interstellar cloud of gas and dust.
What is the nebular theory?
300
The cycle that involves the continuous recycling of gas in the galactic disk between stars and the interstellar medium.
What is the star-gas-star cycle?
400
The year that NASA was founded.
When is 1958?
400
The name of the engines that will power the upper stage of the 130-metric-ton configuration of the Space Launch System (SLS).
What is the J-2X engines?
400
The German born engineer who was chiefly responsible for launching the first American earth satellite, Explorer I, in 1958.
Who is Wernher von Braun?
400
The circle at a particular distance from the Sun, beyond which the temperature was low enough for ices to condense.
What is the frost line?
400
A colorful cloud of gas that glows because it is heated by light from nearby hot stars.
What is an ionization nebula?
500
In 1996, this spacecraft revealed that Europa may contain ice or even liquid water.
What is the Galileo spacecraft?
500
NASA's budget for 2015.
What is not enough ($17.5 billion is also acceptable)?
500
He helped develop the sundials that were used in the Mars Exploration Rover missions.
Who is Bill Nye?
500
Every terrestrial world has a layer of relatively strong, rigid rock, encompassing the crust and part of the mantle. This is the name of that layer.
What is the lithosphere?
500
This paradox asks "Why is the night sky dark?
What is Olbers' paradox?