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By Paul M. Sutter on January 1, 2019 in
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What does ‘time’ mean for light? What is the real lesson of the twin paradox? How can we all agree on the true age of the universe? Why is it all so technical?

By Richard B. Drumm on December 26, 2018 in
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Today, we understand gravity much better than we did in Galileo’s day, thanks to Albert Einstein. Over 100 years ago, Einstein came up with a theory of gravity that has so far passed all tests, in laboratories and out in space.

By Paul M. Sutter on December 13, 2018 in
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How hot was the cosmic microwave background? Do gravitational waves travel at the speed of light? How do we understand cosmological redshift?

By Paul M. Sutter on April 12, 2018 in
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The Milky Way is getting largeerrrrrr. Wait… how com? Check it out. And more about light in the void.

By WSH team on March 30, 2018 in
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A Light in the Void, a live concert experience that will tell the story of science through live music, scientists’ live presentations, video, animations, and more.

By Astronomy Cast on July 24, 2017 in
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We see the Universe in visible light with our photon detecting eyes. But there’s a whole spectrum of photons out there, from radio waves to gamma rays that astronomers use to understand the Universe. It’s time to see the whole picture.

By Chris Impey on February 28, 2015 in
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Podcaster: Chris Impey

By Chris Impey on February 21, 2015 in
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Podcaster: Chris Impey