StarChild: The planet Mercury

Mercury: Planet Closest to the Sun. The temperature on Mercury gets so hot it could melt a tin pan. Mercury is the smallest planet in our solar system. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/mercury.html - 7k

What does it mean for Mercury to be in retrograde?

StarChild Question of the Month for June 2002. Question: What does it mean for Mercury to be in retrograde? Answer: Retrograde motion ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question46.html - 6k

StarChild: Facts on Mercury

Facts about Mercury. Average Solar Distance, 57.8 million km. Revolution Period, 87.9 Earth days. Rotation Period, 58.6 Earth days. Equatorial diameter, 4878 km ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/mercury_facts.html - 4k

StarChild: Did you know... (Mercury)

Did you know...? Four billion years ago, a very large asteroid hit Mercury. It made a hole on Mercury's surface big enough to hold the state of Texas. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/mercury_know.html - 4k

StarChild: Answer to the Mercury Question

And the answer is... Mercury can be seen just before sunrise or just after sunset on some clear nights. Return to StarChild homepage, ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/mercury_answer.html - 4k

Urbain Le Verrier

Le Verrier studied the planets Mercury and Uranus. ... Le Verrier thought an asteroid belt between Mercury and the Sun caused Mercury's unusual motion. ... http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level1/leverrier.html - 7k

StarChild: Io

This temperature is hotter than the surface temperature of Mercury. Mercury is the planet closest to the Sun. Show me the Level 2 version of this page. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/io.html - 4k

StarChild: The Planets and Dwarf Planets

Eight planets have been discovered in our solar system. Mercury, Venus, Earth, and Mars are the planets closest to the Sun. They are called the inner planets. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/planets.html - 7k

What is a light-year and how is it used??

It is approximately 150 million km (93 million miles). Mercury can be said to be about 1/3 of an AU from the Sun and Pluto averages about 40 AU from the Sun. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html - 7k

StarChild: Multidisciplinary Solar System Activities: Planet Hop

Planet, Gravitational pull, Revolutional period, Your weight (pounds), Your age (years). Mercury, 0.38, 87.9 days Earth (1/4 of a year), ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/activity/planet_hop.html - 9k

StarChild: Answer to the Clyde Tombaugh Question

And the answer is... Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Return to StarChild homepage, Return to the StarChild ... http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level1/tombaugh_answer.html - 4k

StarChild: Multidisciplinary Solar System Activities: Where does ...

After you have matched the planets or dwarf planet with their orbits, check to see if each is in its right home. Earth, Jupiter, Mars. Mercury, Neptune, Pluto. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/javascript/planet_go.html - 7k

StarChild: Multidisciplinary Solar System Activities: Where does ...

Earth, Planet number: 3. Jupiter, Planet number: 5. Mars, Planet number: 4. Mercury, Planet number: 1. Neptune, Planet number: 8. Pluto, Planet number: 9. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/planet_go_solution.html - 5k

Archive of Questions

[April 2002]. Who discovered the first pulsar? [May 2002]. What does it mean for Mercury to be in retrograde? [June 2002]. Can you tell me about gamma-ray bursts ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/archive.html - 14k

Solar System Shuffle Solution

D. This planet moves so fast, it was named after the swift messenger of the ancient Greek gods. Solar System Object: Mercury Matching Card Number: 5. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/shuffle_solution.html - 7k

Can you tell me about the other solar systems being discovered?

The red dots mark the orbits of planets b, c, and d. The dashed circles show the orbits of Mercury, Venus, Earth and Mars (inside to outside, respectively ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question10.html - 11k

StarChild: Space Probes

The Messenger spacecraft was launched in 2004 and will arrive at Mercury in 2011. It will be only the second probe sent to that small, rocky planet. ... http://starchild.gsfc.nasa.gov/docs/StarChild/space_level1/probes.html - 9k

StarChild: Space Wardrobe

If they want to move freely through space, they wear a special backpack called the "manned maneuvering unit" or MMU. A Mercury Spacesuit, Gemini Spacesuits. ... http://starchild.gsfc.nasa.gov/docs/StarChild/space_level1/wardrobe.html - 8k

How do planets and their moons get their names?

Mercury is the god of commerce, travel and thievery in Roman mythology. The planet probably received this name because it moves so quickly across the sky. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question48.html - 8k