What is a Meteor Shower?

A meteor shower happens when Earth passes through a stream of debris left behind by a comet.

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What Are Shooting Stars?

A "shooting star" isn't a star at all -- it's a tiny particle, often no bigger than a grain of sand, burning up in the atmosphere.

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Planetary Alignment 2026: Uranus, Saturn & Neptune

A look at Uranus, Saturn, and Neptune sharing the same region of sky in 2026 -- a reminder of how planetary motion works.

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A Rare Cosmic Event Is Coming

A total solar eclipse happens when the Moon passes directly between the Sun and Earth, casting its shadow on the surface.

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