Planck

Planck cosmic microwave background

Planck Spacecraft Shut Down

After four years of exquisite observations, the latest mission to study the universe's earliest light has been shuttered. But this end is a happy one and comes with a significant cosmological legacy.

Planck cosmic microwave background

Planck: Best Map Yet of Cosmic Creation

Planck mission scientists have released the first half of their observations of the cosmic microwave background. The results are a stunning confirmation of today's standard model for how the universe formed and grew. But they also raise some head-scratchers.