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The Solar System

In the Solar System Channel, you can explore the planets and celestial objects around our own sun. Learn about topics such as Mars, Jupiter and the Moon.

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Earth Explained

Saturn is the sixth planet from the sun and the second largest planet in the solar system. It is named for the Roman god of agriculture, one of the most important gods in the Roman world.


The Most Detailed 3-D Sky Map Ever of the Galaxy's 100 Billion Stars

The ESA Gaia satellite observatory created a billion-star 3-D map of the Milky Way. Learn more about astronomy in this HowStuffWorks Now article. See more »

Huge Solar Storms Could Have Kickstarted Life on Earth

What impact did the sun have on creating life on Earth? Learn more about research into the sun and life on Earth in this HowStuffWorks Now article. See more »

Weird Physics: The Closer You Get to the Sun, the Cooler It Gets

Why is the atmosphere of the sun hotter than its surface? Learn more about the sun's photosphere in this HowStuffWorks Now article. See more »

Plasma Rain, Plasma Rain: Fascinating New Footage From the Sun's Surface

What does a solar flare with plasma rain look like? Learn more about this footage of plasma rain on the sun in this HowStuffWorks Now article. See more »

A Portion of Your Suntan Comes From Distant Galaxies

Does radiation from beyond our galaxy reach our skin? Learn more in this HowStuffWorks Now article about photons, radiation and sunburns. See more »

If You Think Jupiter Orbits the Sun, You're Mistaken

Technically Jupiter does not orbit the sun's center. Learn more about Jupiter orbiting the sun in this HowStuffWorks Now article. See more »

Watch: The Sun Obliterate a Doomed Comet

A NASA spacecraft detected a sun-grazing comet plunging toward the sun — and its death. Learn more about sun-grazing comets at HowStuffWorks Now. See more »

May I Go to the Moon, Please?

The private space industry is maturing rapidly, so we need to figure out a few things first, like who needs to sign your lunar permission slip. See more »

NASA's Juno Spacecraft Arrives at Jupiter on Monday, July 4

The NASA probe Juno will arrive at Jupiter on Monday, July 4. Learn more about the Juno mission to Jupiter in this HowStuffWorks Now article. See more »

Hubble Captures New Images of Jupiter's Northern Lights

Hubble captures new images of Jupiter's aurora. Learn more about these aurora images in this HowStuffWorks Now article. See more »