Jupiter: Largest Planet in the Solar System (03:41)
Jupiter is made up of hydrogen and helium, the two lightest gasses in the universe. The solar system's largest planet is visible to the naked eye. Jupiter's environment is hostile to life.
Jupiter: Earth's Protector (06:12)
The formation of Jupiter remains a mystery to scientists. Is it a failed star? Jupiter grabs things out of space and tosses them back out. It influences the courses of comets and may have saved Earth numerous times from catastrophic collisions.
Star of Bethlehem (01:18)
In August of 3 BC, Jupiter and Venus were in conjunction, creating a bright luminescence in the sky. Some people think this was the Biblical Star of Bethlehem. Galileo is the first man in recorded history to make a sighting of the Jupiter system.
Jupiter's Great Red Spot (02:44)
In 1665, Jupiter's red eye was first seen. It is an enormous storm 12,000 miles long. It is a high pressure system that can take 10 days to complete a rotation.
Jupiter's Storm (06:39)
Warmer gasses rising from deep within planet Jupiter might create a vortex that could fuel the planet's immense storm. Within Jupiter's Great Red Spot, winds blow at 350 mph. Streams of fierce jets continually circle the planet.
Moons of Jupiter (03:40)
Jupiter has dozens of moons. Jupiter's moon Io is the most volcanically active in the solar system. Ganymede is the largest moon in the solar system. Callisto is heavily cratered; Europa is the "Ice Queen."
Jupiter's Moon Europa (03:27)
Europa may have warm thermal vents deep below its frozen crust. The presence of water could indicate an environment suitable for life. Scientists prepare a prototype of a robot that would explore Europa's oceans.
Life on Europa? (05:13)
Scientists speculate about what kinds of life forms might be in Europa's oceans. On Earth, extremophiles like tube worms live in superheated thermal vents at the bottom of Earth's oceans.
Jupiter's Magnetosphere (03:47)
The kinetic field of Jupiter is the largest entity in the solar system. It is a bubble 450 million miles long buzzing with electrically charged particles.
Sounds of Jupiter (02:45)
Jupiter's magnetosphere "speaks" in sounds that humans can hear. They are described variously as roars, hisses, and whistles. In 1979, Voyager II passed through the outer magnetosphere and discovered why the planet was "talking."
Jupiter's Mysteries (02:37)
In 1979, the world learned that Jupiter has a ring. It is likely composed of material knocked off one of the interior moons. The ring is slowly growing. Visible evidence of storms reveals that Jupiter's storms form, transform, and disappear.
Credits: Jupiter: The Giant Planet (00:39)
Credits: Jupiter: The Giant Planet
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