This represents the shortest and longest periods of daylight.
What is a solstice?
Astronaunts recycle this to produce more water. WARNING: it is pretty gross!
What is urine (wastewater)?
This type of telescope uses lenses to gather and focus light.
What is a refracting telescope?
This is a grouping of stars we see in the night sky.
What is a constellation?
This robot allows space exploration on a planet.
What is a space probe?
This represents periods of equal day and night.
What is equinox?
Damaging effects of cosmic rays describes this type of hazard.
What is an environmental hazard?
In a reflecting telescope, the large mirror has to be this shape.
What is concave?
The name when a star is born.
What is a nebulae?
This station is a joint project with many nations that serves as a laboratory in space.
What is the International Space Station?
This planetary model was adopted by Galileo as a more "modern" model of the planets.
What is heliocentric?
Living in a confined space describes this type of challenge.
What is a psychological challenge?
This technique produces a better resolution by combining more than two telescopes together.
What is interferometry?
What is a white dwarf?
This part makes up 91% of a rocket.
What is fuel?
With the heliocentric model, the planets were described to orbit in this shape.
What is an ellipse?
Bones have less pressure on them and muscles begin to weaken due to this issue to the body.
What is microgravity?
The Hubble Space telescope is this type of telescope.
What is reflecting telescope?
Stars spend most of their lifetime converting hydrogen into this.
What is helium?
This futuristic technology uses xenon gas that makes a rocket engine very efficient.
What is an ion drive?
This scientist described a law that an object's speed varies in orbit.
Who is Kepler?
To help produce more oxygen, they have to use this process to split water into hydrogen and oxygen.
What is electrolysis?
Keck I and Keck II are examples of this type of telescope.
What is a segmented-mirror telescope?
This is invisible to telescopes.
What is a black hole?
This futuristic technology uses photons to allow fast travel.
What is solar sails?