Exploring 55 Cancri e: An Alien World

What is the orbital period of 55 Cancri e around its star?

• 24 hours

• 12 hours

• 365 days

• 18 hours

How does the proximity of 55 Cancri e to its star compare to Mercury's distance from the Sun?

• It is 10 times closer

• It is 5 times closer

• It is 26 times closer

• It is the same distance

What class of exoplanets does 55 Cancri e belong to?

• Gas Giants

• Super-Earths

• Dwarf Planets

• Ice Giants

What is a supercritical fluid?

• A low-pressure liquid

• A high-pressure, high-temperature liquid-like gas

• A frozen gas

• A solid-like gas

What lesson does 55 Cancri e teach us about exoplanets?

• All planets are similar to Earth

• Exoplanets are always habitable

• Size does not determine similarity to Earth

• All exoplanets have water