Appearance
Grey
What color is Mercury?
our Sun
What star is Mercury closest to?
Zero
What is the number of moons Mercury has?
-184 °C
What is the coldest temperature on Mercury?
60 million km
What is the mean distance of Mercury from the Sun?
47 kilometers/second
What is Mercury's orbital speed?
Hermes, the Greek messenger on the gods
Who is Mercury named after?
466 °C
What is the hottest temperature on Mercury?
2015
When did the Messenger spacecraft crash into the surface of Mercury?
Smallest
Mercury's relative size among the planets
88 earth days
How long is a Mercury year?
Texas
What is the size of one of Mercury's craters?
Lack of atmosphere
Why does Mercury have extreme temperature variations between night and day?
early morning and late evening
When is Mercury is most visible?
Asteroids and Comets
What is the reason Mercury is coverd with craters?
Mariner 10
What was the first space probe launched into Mercury?
2026
When is BepiColumbo expected to enter Mercury orbit?
27 pounds
What is the weight of an object on Mercury if its weight on Earth is 70 pounds? (g=3.7 m/s2)
1/18th
What is the mass of Mercury compared to Earth?
Wednesday
What day of the week is named after Mercury?
Storms
What weather doe NOT occur on Mercury?
3.2 minutes
How long does it take sunlight to get to Mercury?