Only Pluto Knows For Sure

Only Pluto Knows For Sure

Skytalk is hosted by WHYY's Dave Heller. Each week he discusses the latest news in astronomy with Dr. Derrick H. Pitts of the Franklin Institute.

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The Milky Way's Galactic Center in the night sky above the Paranal Observatory (the laser creates a guide-star for the telescope). ESO/Y. Beletsky

Galactic Two-Step

Our Milky Way is thought to have originally formed shortly after the birth of the universe, 13.5 billion years ago. Built from the first ...

Air Date: September 3, 2018

Listen 05:13
Orbit position of the asteroid 162173 Ryugu on June 30, 2018 (NASA)

Reaching Ryugu

Japan’s Hayabusa 2 spacecraft arrives at asteroid Ryugu on Wednesday, beginning a string of encounters including fly-bys, ...

Air Date: July 10, 2018

Listen 07:23
Atacama cosmology telescope

Signs of Inflation

Dave Heller and Derrick Pitts, chief astronomer at the Franklin Institute, discuss efforts to peer all the way back in time and space wit ...

Air Date: June 25, 2018

Listen 13:05

Only the Shadow Knows

As we approach Summer Solstice, vertical shadows come to their shortest length. Stepping out for lunch with your work colleagues tomorrow ...

Air Date: June 11, 2018

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