C1
The planet that allegedly slammed into Earth and created the Moon 4.5 billion years ago.
What is Theia?
The comet that slammed into Jupiter
What is Shoemaker Levy-9?
The closest exoplanet to the Solar System
What is Proxima B?
The 2nd planet from the Sun
A planet the same size as Venus, whose lifeforms were almost completely wiped out by a hostile alien race
what is Teonchof?
The 8th planet from the Sun
What is Neptune?
An exoplanet thought to be habitable
What is K2-18b?
Another of Proxima Centauri's planets
What is Proxima D?
A hypothetical brown dwarf far beyond the Kuiper Belt
What is Tyche?
A dwarf planet that is binary with its largest moon
What is Pluto?
The disproven hypothetical planet closer to the Sun than Mercury (also appears in Star Trek)
What is Vulcan?
Proxima Centauri's 3rd, unconfirmed planet
What is Proxima C?
A trio of stars---the closest stars to us outside of the Solar System
What is Alpha Centauri?
I build a wall, the ______ break it, you stupid ______, my wall has fallen! -China
The only planet orbiting a somewhat-distant G-type star
What is Kepler-22b?
The most volcanicly active object in the Solar system
What is Jupiter's moon, Io?
The dinky, pathetic moons of Mars
What are Phobos & Deimos?
A fictional country in North America
What is Stonia?
The country that sold Alaska to the US in the 1800s
What is Russia?
A distant wormhole pair
What are Av-14-95-A and AV-14-95-B?
What is Nemesis?
A certain man who is known for using a certain symbol for the wrong meaning in the 1940s
Who is Adolf Hitler?
A hypothetical planet far beyond the Kuiper Belt?
What is Planet X/Planet 9/Nibiru?
Another trio of stars---an F-type, a G-type, and an M-type
What is the Centaox Trinary System?
A dwarf planet with abnormally far rings?
What is Quoaor?