Planets
The only other planet in the solar system with tectonic activity.
What is Mercury?
Despite its diminutive stature, this type of star is the most common in the universe.
What is a Red Dwarf?
This substance makes up about 85% of the matter in the universe.
What is dark matter?
The first human in space.
Who is Yuri Gagarin?
The hottest in the solar system.
What is Venus?
This phenomenon is actually an effect of the Earth’s atmosphere, not a property of stars.
What is twinkling?
The follow-up to Hubble.
What is the James Webb Space Telescope?
This Polish astronomer was central to our current understanding of the solar system.
Who is Nicolaus Copernicus?
This "planet" is thought to have crashed into the Earth to form the Moon.
What is Theia?
This guiding light will stray from its post in the next 13,000 years.
What is the North Star?
This property of space is frequently misrepresented in movies for dramatic effect.
What is silence?
This brave explorer recently passed away after a lifetime dedicated to science.
Who is Opportunity?
These planets float through space on their own instead of orbiting a star.
What are rogue planets?
This is the brightest star in our sky.
What is Sirius?
This spacecraft, the first artificial object to leave the solar system, is now over 13 billion miles away from the sun.
What is Voyager 1?
This 20th-century scientist is most famous for his books, which brought many people into contact with astronomy for the first time.
Who is Carl Sagan?
Unlike the children’s song, research suggests that planet Cancri e, found in the constellation Cancer, may actually be made out of this priceless material.
What is diamond?
This term comes from the Latin roots for “together” and “star.”
What is "constellation"?
This process occurs when two pieces of the same type of metal touch in space.
What is cold welding? (A permanent bond formed in a vacuum.)
This person discovered Pluto in 1930.
Who is Clyde Tombaugh?