StarChild: The Moon

The Moon: Earth's Satellite. The Moon is the only place in our solar system, other than Earth, where humans have visited. ... The Moon is a little lopsided. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/moon.html - 8k

What are the phases of the Moon?

1998. Question: What are the phases of the Moon? Answer: The Moon orbits Earth at an average distance of 382,400 kilometers. The ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question3.html - 8k

Where did the Moon come from?

Question: Where did the Moon come from? Answer: Any theory which explains the existence of the Moon must naturally explain the following facts: ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question38.html - 10k

What is the <A HREF = "/docs/StarChild/glossary_level1 ...

Question: What is the orbital period of the Moon? Answer: There are two periods involved with the orbit of the Moon around the Earth. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question32.html - 6k

If you are on the Moon, does the Earth move in the sky?

StarChild Question of the Month for June 2003. Question: If you are on the Moon, does the Earth move in the sky? Answer: Generally ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question58.html - 6k

Why is the crescent moon sometimes lit on the bottom?

StarChild Question of the Month for March 2002. Question: Why is the crescent Moon sometimes lit on the bottom? Answer: A careful ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question43.html - 8k

StarChild: Pluto's Moons

Pluto's Moons. From 1975 until 2005, astronomers knew of only one moon for Pluto. However ... picture. The new moons were named Nix and Hydra. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto_moons.html - 4k

How many moons does Jupiter have?

To be recognized by the scientific community as a new moon involves a process which may take several years - and some announced objects never get recognized at ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question51.html - 7k

The Phases of the Moon

In the diagram above, you can see the Moon always has a lit side (facing the Sun) and a dark side (facing away from the Sun). From ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/phases.html - 4k

How do planets and their moons get their names?

beauty. The planet is aptly named since it makes a beautiful sight in the sky, with only the Sun and the Moon being brighter. Earth ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question48.html - 8k

StarChild: Artist's Concept of Haumea and Its Moons

This artis't concept of Haumea and its two moons is courtesy of NASA, ESA, and A. Feild (STScI). It shows how the rapid spin of ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/haumea_image.html - 4k

StarChild: Facts about the Moon

Facts about the Moon. Earth Distance, 356,000 to 407,000 km. Revolution Period, 27.3 Earth days. Rotation Period, 27.3 Earth days. Equatorial diameter, 3476 km. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/moon_facts.html - 4k

StarChild: Answer to the Moon Question

And the answer is... Neil Armstrong, an astronaut from the United States, was the first human to touch the Moon's surface. Return ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/moon_answer.html - 4k

StarChild: Did you know... (The Moon)

Did you know...? The Moon is very slowly moving away from Earth at the rate of about 3 centimeters a year. Return to StarChild homepage, ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/moon_know.html - 4k

Understanding Angular Size

How the Sun and Moon Can Appear to be the Same Size. The diameter of the Sun is over 400 times the diameter of the Moon. So how can ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/understand_size.html - 5k

StarChild: Multidisciplinary Solar System Activities: Moonlight ...

Moonlight Madness. The revolution of the Moon around the Earth causes the Moon to appear to change shape in the sky. These apparently ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/activity/moonlight.html - 11k

What is an eclipse?

From Earth, we routinely experience two kinds of eclipses: an eclipse of the Moon and an eclipse of the Sun. Eclipses of the Moon. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question6.html - 8k

Total Eclipse

In a solar eclipse, the Moon moves between the Earth and the Sun. ... The sky slowly gets dark as the Moon moves in front of the Sun. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/total_eclipse.html - 6k

StarChild: Saturn's Natural Satellites

As of January 2008, Saturn has 52 named moons. Eight additional moons have been detected and are awaiting official confirmation and naming. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/saturn_satellites.html - 15k

StarChild: Neptune's Natural Satellites

Neptune's Natural Satellites. As of January 2008, Neptune has 13 named natural satellites. Name, Diameter, Mass, Distance from Neptune. Naiad, 58 km, 48,227 km. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/neptune_satellites.html - 7k

Problems in Space Activity

Problems in Space. Imagine that you are part of a space exploration mission flying from a space station orbiting the Moon to a base on the Moon itself. ... http://starchild.gsfc.nasa.gov/docs/StarChild/space_level2/activity/problems_space.html - 8k

StarChild: Apollo 11

Apollo 11. Astronauts' foot prints and Lunar Rover tire tracks will stay on the Moon for millions of years because there is no wind to blow them away. ... http://starchild.gsfc.nasa.gov/docs/StarChild/space_level1/apollo11.html - 7k

Archive of Questions

[October 1998]. What are the phases of the Moon? [November 1998]. ... Why is there day and night? [March 2001]. What is the orbital period of the Moon? [April 2001]. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/archive.html - 14k

What is so important about volcanoes on Io?

kilometers. While observing Jupiter's moon Io, the two spacecraft captured images of a volcanic plume coming from the moon's surface. ... http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question33.html - 6k

StarChild: The Dwarf Planet Pluto

Pluto: The First Dwarf Planet. Pluto is actually smaller than one of Neptune's moons, Triton. ... Pluto's largest moon, Charon, is half the size of Pluto. ... http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto.html - 7k