Which planet has the hottest average surface temperature in the solar system?
- Venus
- Mercury
- Mars
- Jupiter
What is the largest moon in the solar system?
- Ganymede
- Titan
- The Moon
- Europa
The Great Red Spot, a giant storm that has raged for centuries, is a feature of which planet?
- Jupiter
- Saturn
- Mars
- Neptune
The main asteroid belt lies between the orbits of which two planets?
- Mars and Jupiter
- Earth and Mars
- Jupiter and Saturn
- Venus and Earth
Which planet is tilted so far over, with an axial tilt near 98 degrees, that it essentially rotates on its side?
- Uranus
- Neptune
- Saturn
- Mars
Excluding the Sun, which star is closest to our solar system?
- Proxima Centauri
- Alpha Centauri A
- Sirius
- Barnard's Star
A light-year is a unit that measures which of the following?
- Distance
- Time
- Brightness
- Mass
In 2006, Pluto was reclassified from a planet into which category?
- Dwarf planet
- Asteroid
- Comet
- Moon
A total solar eclipse occurs when which body passes directly between the Earth and the Sun?
- The Moon
- Venus
- Mercury
- A comet
Relative to the size of its planet, Earth's Moon is unusually large compared with the moons of most other planets in the solar system.
- True
- False
Light from the Sun reaches the Earth in about one second.
- True
- False
A shooting star streaking across the night sky is actually a small fragment of rock or dust burning up in the Earth's atmosphere, known as a ___.
Olympus Mons, the tallest volcano in the solar system, is located on the planet ___.