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By Fraser Cain on August 25, 2018 in
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In ancient times, astronomers and philosophers thought that the Earth was the center of the Universe. We know that’s wrong, but is there anything special about where we live?

By Astronomy Cast on August 13, 2018 in
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This week we look at age of the Universe. How old is the Universe, and how do we know?

By Paul M. Sutter on August 7, 2018 in
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What are some weaknesses with the standard Big Bang model? What are the horizon and flatness problems? How does accelerated expansion solve these?

By Paul M. Sutter on July 26, 2018 in
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Could we use a telescope to see the dinosaurs? What are the challenges to living on Mars?

By Paul M. Sutter on July 17, 2018 in
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What is the cosmological constant? How is the expansion of the universe related to quantum fields? How does a vacuum energy produce accelerated expansion?

By WSH team on May 18, 2018 in
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Lets discuss about Treknology: The Science of Star Trek and more updates including helicopter for mars & stars from the early moment of the universe

By Paul M. Sutter on February 6, 2018 in
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What did Hubble really discover? Why does redshift imply an expanding universe? Why is the night sky dark? Why is there so much hydrogen, and how is that connected to the Big Bang?

By Fraser Cain on October 31, 2017 in
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The speed of light gives us an amazing tool for studying the Universe. Lets study about it.