Trivia

Hard

Which Moon Orbits Closest To Its Host Planet?

Phobos
Titan
Earth's Moon
Europa

Answer: Phobos

Among moons in our solar system, Phobos, the largest and most innermost of Mars’ two moons, is quite a curiosity. Phobos orbits just a scant 3,700 miles above the surface of Mars; for comparison, Earth’s moon has an average distance of 239,228 miles from Earth (or nearly 65 times the distance between Phobos and Mars).

The tiny distance between Mars and its largest moon would be more than enough to make it noteworthy, but the close distance creates all sorts of equally as noteworthy elements in the Martian/lunar relationship. Because Phobos is so close to Mars, it actually orbits the red planet faster than the planet itself rotates, such that Mars experiences two moon rises and sets per day.

Further, mathematical models suggest that, based on the fact that Phobos is quietly drifting closer to Mars by two meters every century, within 30-50 million years the moon will either smash into Mars or break apart and create a planetary ring like a smaller version of those seen around Saturn.

Trivia

Hard

Long Before The World Wide Web French Citizens Enjoyed Online Banking And More Courtesy Of?

Trivia

Hard

After Whom Was Princess Zelda, Of The Legend of Zelda Fame, Named?

Trivia

Hard

Which G.I. Joe Character Was Introduced To Save Money On Manufacturing Costs?

Trivia

Very Hard

Before It Was Known As The Black Plague The Population Decimating Pandemic Was Known As?

Trivia

Easy

What Is It Illegal For The U.S. Treasury To Print On Currency?

Trivia

Hard

The Generation Between Generation X And The Millennials Is Known As The?

Trivia

Hard

The Speed Of Electricity Was First Measured By What Method?

Trivia

Hard

The Oldest Soda Still In Production Today Is?

Trivia

Hard

The Strongest Bite In The Animal Kingdom Belongs To The?

Trivia

Hard

In The 1980s, It Was Possible To Download Software From Which Of These Unlikely Sources?