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There's More to the North Star Than Meets the Eye

Spitzer Puts a New Spin on the Helix Nebula

Scientists Find Black Hole's 'Point of No Return'

A Planet Colder Than It Should Be

Galaxy's Neighboring Spiral Arm Is Closer Than Thought

A Holiday Gift from Space: Spitzer Photographs Christmas Tree Cluster

Flashes from the Past: Echoes from Ancient Supernovae

Planet-sized Brown Dwarf May Yield Miniature Solar System

Einstein's Rings in Space

Spitzer Harvests Dozens of New Stars