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International Astronomical Union
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How do features on Pluto and its moons get their names?
Why isn't Pluto a planet?
Related Questions
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Remarkable new details of Pluto's largest moon Charon are revealed in this image from New Horizons' Long Range Reconnaissance Imager (LORRI), taken late on July 13, 2015 from a distance of 289,000 miles
Why Is Pluto No Longer a Planet?
Planet Earth and lunar moon from space
Where Did the Moon Come From?
solar eclipse, sun, moon, astronomy, space
How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?
Arrangement of the phases of the moon in total eclipse with Blood Moon
9 Celestial Omens
1 July 2002: The Solar and Heliospheric Observatory (SOHO) satellite reveals a massive solar eruption more than 30 times the Earth's diameter. The eruption formed when a loop of a magnetic field over the surface of the Sun trapped hot gas.
6 Questions About the Sun Answered
Discover
Young boys working in a thread spinning mill in Macon, Georgia, 1909. Boys are so small they have to climb onto the spinning frame to reach and fix broken threads and put back empty bobbins. Child labor. Industrial revolution
The Rise of the Machines: Pros and Cons of the Industrial Revolution
King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes
Candles Burning On Table In Church
What Is the Most Widely Practiced Religion in the World?
Illustration for Demystified "How Dangerous is Quicksand"
How Deadly Is Quicksand?
Computer mapping, woman at early 1990s computer
Timeline of the 1990s
Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,
Which Religion Is the Oldest?
New Zealand. Political/Physical map. Includes locator.
Where Is “Old Zealand”?

International Astronomical Union: Media

Videos

How do features on Pluto and its moons get their names?
Learn how physical features on Pluto, Charon, and nearby moons are named according...
Video: Encyclopædia Britannica, Inc.
Why isn't Pluto a planet?
Being a dwarf planet isn't really a downgrade.
Video: Encyclopedia Britannica INC.
VIEW MORE in these related Britannica articles: