The Planets: Inner Worlds

The rocky planets—Mercury, Venus, Earth and Mars—were born of similar material around the same time. Yet only one of them supports life. Were Earth's neighbors always so extreme? And is there somewhere else in the solar system life might flourish?

PBS’ premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.

NOVA Episodes

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Why Bridges Collapse

Can new engineering techniques help prevent deadly bridge collapses?

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The Planets: Ice Worlds

Beyond icy worlds of Uranus and Neptune, Pluto dazzles with its mysterious ocean.

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The Planets: Saturn

NASA's Cassini reveals the mysteries of Saturn's rings—and new hope for life on a mo...

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The Planets: Jupiter

Jupiter's massive gravitational force has made it a wrecking ball and a protector of Earth