Star Noise

Karl Jansky, the Galileo of radio astronomy, was the first to wrench astronomy away from its dependence on the optical spectrum, beyond the narrow band of electromagnetic radiation visible to the human eye.

Chasing Galaxies

The legacy of "Brian Tinsley's clever wife"

Curiouser and Curiouser

Happy anniversary, white dwarf star!

stargazine

Virtual Universe

Centuries of astronomy, plus video-game technology, offer a stunning new perspective on our place in space.

sun

Our Quiet Star

An Internet guide to exploring the mysteries of sunspots

pioneer space

Spacecraft Behaving Badly

Could strange new physics be affecting a pair of distant space probes?

pioneer space

Spacecraft Behaving Badly

Could strange new physics be affecting a pair of distant space probes?

Sudbury Neutrino Collector

Little Neutral Ones

In John Updike's memorable description, "The earth is just a silly ball/To them, through which they simply pass."

Sudbury Neutrino Collector

Little Neutral Ones

In John Updike's memorable description, "The earth is just a silly ball/To them, through which they simply pass."

Sir Isaac Newton

The Perimeter of Ignorance

Scientists face a choice: invoke a deity or continue the quest for knowledge

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Recent Stories

Uneven handedness

A visual atlas of solifuge jaws enables research on these poorly-understood arachnids.

Frogs, like humans, irrationally switch their preferences.

Phytoplankton blooms gain nutrients from glacial melting.