Solar System
The largest planet in our solar system.
This is the closest star to Earth.
What is the Sun?
This space telescope has provided us with stunning images of the universe.
What is the Hubble Space Telescope?
Astrobiology is the study of the possibility of this in outer space.
What is life?
This is what we call a group of stars that forms a shape or pattern in the night sky.
What is a constellation?
This planet has beautiful rings.
What is Saturn?
This galaxy is our home in the universe.
What is the Milky Way?
This is the name of the first human to walk on the Moon.
Who is Neil Armstrong?
Scientists look for this liquid on other planets because it's essential for life as we know it.
What is water?
This is the name of our galaxy.
What is the Milky Way?
This is the only planet in our solar system that supports life.
What is Earth?
These are formed when a massive star collapses at the end of its life cycle.
What are black holes?
This is the name of the space agency responsible for the Apollo moon missions.
What is NASA?
This planet in our solar system is of interest to astrobiologists because it may have had water in the past.
What is Mars?
This is the name of the first person to orbit the Earth in space.
Who is Yuri Gagarin?
This planet is known as the "Red Planet."
What is Mars?
This is the term for a group of stars that form a recognizable pattern in the sky.
What is a constellation?
This is the vehicle astronauts use to travel to space.
What is a spacecraft?
This is the term for tiny organisms that astrobiologists think might exist on other planets.
What are microbes or microorganisms?
This is the term for a "shooting star" that you might see streaking across the night sky.
What is a meteor?
This planet was once considered the ninth planet of our solar system.
What is Pluto?
This is the term for the brightness of a star as seen from Earth.
What is apparent magnitude?
This was the first human-made object to land on the Moon.
What is the Apollo 11 lunar module?
This is the term used to describe the potential for life to exist on planets other than Earth.
What is extraterrestrial life?
This is the term for the path that planets take as they orbit around the Sun.
What is an orbit?