Can galaxies ever get destroyed? What happens to their stars? Do galaxies ever die? I discuss these questions and more in today's Ask a Spaceman!

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Hosted by Paul M. Sutter.

What does it mean for the universe to have a center? Could we ever travel to ours? What is a singularity? I discuss these questions and more in today's Ask a Spaceman!

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Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Duncan M, Corey D, stargazer, Robert B, Tom G, Naila, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Denis A, Jules R, Mike G, Jim L, Scott J, David S, William W, Scott R, Bbjj108, Heather, Mike S, Michele R, Pete H, Steve S, wahtwahtbird, Lisa R, and Couzy!

Hosted by Paul M. Sutter.

How does length contraction work in relativity? Do moving objects really get shorter? What about from their perspective? How are we supposed to make sense of any measurement? I discuss these questions and more in today's Ask a Spaceman!

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Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Corey D, stargazer, Robert B, Tom G, Naila, BikeSanta, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Demethius J, Jules R, Mike G, Jim L, Scott J, David S, Scott R, Bbjj108, Heather, Mike S, Michele R, Pete H, Steve S, wahtwahtbird, Lisa R, and Couzy!

Hosted by Paul M. Sutter.

What is the "cold spot" on the cosmic microwave background? Why shouldn't it exist? What are some possible explanations for it, and why are they unsatisfying? I discuss these questions and more in today's Ask a Spaceman!

Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books

Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Corey D, stargazer, Robert B, Tom G, Naila, BikeSanta, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Demethius J, Jules R, Mike G, Jim L, Scott J, David S, Scott R, Bbjj108, Heather, Mike S, Michele R, Pete H, Steve S, wahtwahtbird, Lisa R, Couzy, Tim R, Mark R, Alan B, Craig B, Mark F, Richard K, Maureen R, Stace J, Stephen S, Stephen J, Joe R, David P, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Steven M, Bill E, Tim Z, Linda C, The Tired Jedi, Farshad A, Kenneth D, David W, dhr18, Lode D, Alyssa K, Bob C, Simon G, Red B, Herb G, Stephen A, James R, Robert O, Lynn D, Jeffrey C, Allen E, Michael S, Reinaldo A, Jessica M, Patrick M, Amy Z, Sheryl, John G, David W, Jonathan S, Sue T, Josephine K, Chris, P. Sprout, Michael S, Erlend A, James D, Larry D, Matt K, Charles, Jonathan S, and Karl W!

Hosted by Paul M. Sutter.

How do planets get tidally locked? What are these systems typically like? Can life find a home in such a challenging environment? I discuss these questions and more in today's Ask a Spaceman!

Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books

Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Corey D, stargazer, Robert B, Tom G, Naila, BikeSanta, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Demethius J, Jules R, Mike G, Jim L, Scott J, David S, Scott R, Bbjj108, Heather, Mike S, Michele R, Pete H, Steve S, wahtwahtbird, Lisa R, Couzy, Tim R, Mark R, Alan B, Craig B, Mark F, Richard K, Maureen R, Stace J, Stephen S, Stephen J, Joe R, David P, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Steven M, Bill E, Tim Z, Linda C, The Tired Jedi, Farshad A, Kenneth D, David W, dhr18, Lode D, Alyssa K, Bob C, Simon G, Red B, Herb G, Stephen A, James R, Robert O, Lynn D, Jeffrey C, Allen E, Michael S, Reinaldo A, Jessica M, Patrick M, Amy Z, Sheryl, John G, David W, Jonathan S, Sue T, Josephine K, Chris, P. Sprout, Michael S, Erlend A, James D, Larry D, Matt K, Charles, Jonathan S, and Karl W!

Hosted by Paul M. Sutter.

If we went to the Moon already, why can't we go back so easily? What technology have we lost? What are we trying to do differently? I discuss these questions and more in today's Ask a Spaceman!

Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books

Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Corey D, stargazer, Robert B, Tom G, Naila, BikeSanta, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Demethius J, Jules R, Mike G, Jim L, Scott J, David S, Scott R, Bbjj108, Heather, Mike S, Michele R, Pete H, Steve S, wahtwahtbird, Lisa R, Couzy!

Hosted by Paul M. Sutter.

What's the most distant thing we can see with the naked eye? What about with a telescope? What about at other wavelengths? Is there anything more to see? I discuss these questions and more in today's Ask a Spaceman!

Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books

Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Barbara K, Alberto M, Duncan M, Corey D, Tom G, Naila, John S, Joshua, Scott M, Rob H, Louis M, John W, Alexis, Gilbert M, David L, Rob W, Valerie H, Demethius J, Jules R, Mike G, Jim L, Scott J, Lewis I, Peter E, David S, Paul L, Jon-Boy, Scott R, Tim R, Mark R, Alan B, Craig B, Mark F, Richard K, Maureen R, Stace J, Stephen S, Stephen J, Joe R, David P, robert b, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Sarah K, Richard S, Sam R, Thomas K, James C, Syamkumar M, Homer v, Mark D, Bruce A, Steven M, Bill E, Tim Z, Linda C, Scott M, Avery P, Farshad A, Kenneth D, Gary K, Paul G, David W, dhr18, Lode S, Alyssa K, Bob C, Simon G, Red B, Herb G, Stephen A, James R, Robert O, Lynn D, Jeffrey C, Allen E, Michael S, Reinaldo A, Jessica M, Patrick M, Amy Z, Sheryl, John G, David W, Jonathan S, Sue T, Josephine K, Chris, P. S, Michael S, Erlend A, James D, Larry D, Matt K, and Charles!

Hosted by Paul M. Sutter.

What is "emergence" in physics and why is it a big deal? What would it mean for gravity to be emergent? How would we have to rewrite the laws of physics? I discuss these questions and more in today's Ask a Spaceman!

Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books

Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Barbara K, Alberto M, Duncan M, Corey D, Naila, John S, Joshua, Scott M, Rob H, Louis M, John W, Alexis, Gilbert M, Valerie H, Demethius J, Nathan R, and Mike G, Tim R, Mark R, Alan B, Craig B, Mark F, Richard K, Maureen R, Stace J, Stephen S, Stephen J, Joe R, David P, robert b, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Sarah K, Richard S, Sam R, Thomas K, James C, Syamkumar M, Homer v, Mark D, Bruce A, Steven M, Bill E, Tim Z, Linda C, Aissa F, Marc H, Scott M, Avery P, Farshad A, Kenneth D, Gary K, Paul G, David W, dhr18, Lode S, Alyssa K, Roger, Bob C, Simon G, Red B, Herb G, Stephen A, James R, Robert O, Lynn D, Jeffrey C, Allen E, Michael S, Jordan, Reinaldo A, Jessica M, Patrick M, Amy Z, Sheryl, John G, David W, Jonathan S, Sue T, Josephine K, Chris, Jules R, P. S, Michael S, Erlend A, James D, and Larry D!

Hosted by Paul M. Sutter.

How can a "big rip" tear the universe apart? What does that mean for existence itself? Is it going to happen, and what are we doing to find out? I discuss these questions and more in today's Ask a Spaceman!

Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books

Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Barbara K, Alberto M, Duncan M, Corey D, Naila, John S, Joshua, Scott M, Rob H, Louis M, John W, Alexis, Gilbert M, Valerie H, Demethius J, Nathan R, and Mike G, Tim R, Mark R, Alan B, Craig B, Mark F, Richard K, Maureen R, Stace J, Stephen S, Stephen J, Joe R, David P, robert b, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Sarah K, Richard S, Sam R, Thomas K, James C, Syamkumar M, Homer v, Mark D, Bruce A, Steven M, Bill E, Tim Z, Linda C, Aissa F, Marc H, Scott M, Avery P, Farshad A, Kenneth D, Gary K, Paul G, David W, dhr18, Lode S, Alyssa K, Roger, Bob C, Simon G, Red B, Herb G, Stephen A, James R, Robert O, Lynn D, Jeffrey C, Allen E, Michael S, Jordan, Reinaldo A, Jessica M, Patrick M, Amy Z, Sheryl, John G, David W, Jonathan S, Sue T, Josephine K, Chris, Jules R, P. S, Michael S, Erlend A, James D, and Larry D!

Thanks to Cathy Rinella for editing.

Hosted by Paul M. Sutter.

How do we track dangerous asteroids? What can impacts do to us? What do we plan to do if The Big One is headed for us? Is Armageddon a documentary? I discuss these questions and more in today's Ask a Spaceman!

Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books

Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!

Big thanks to my top Patreon supporters this month: Justin G, Chris L, Barbara K, Alberto M, Duncan M, Corey D, Naila, John S, Joshua, Scott M, Rob H, Louis M, John W, Alexis, Erin J, Gilbert M, Valerie H, Tim R, Mark R, Alan B, Craig B, Mark F, Richard K, Maureen R, Stace J, Stephen S, Stephen J, Joe R, David P, robert b, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Sarah K, Richard S, Sam R, Thomas K, James C, Syamkumar M, Homer v, Mark D, Bruce A, Steven M, Bill E, Tim Z, Linda C, Aissa F, Marc H, Scott M, Avery P, Farshad A, Michael W, Kenneth D, Gary K, Paul G, David W, dhr18, Ron D, Lode S, Alyssa K, Roger, Bob C, Simon G, Red B, Stephen A, James R, Robert O, Lynn D, Allen E, Michael S, Jordan, Reinaldo A, Jessica M, Patrick M, Amy Z, Sheryl, John G, David W, Jonathan S, Sue T, Josephine K, Chris, Jules R, P. S, Michael S, Erlend A, and James D!

Thanks to Cathy Rinella for editing.

Hosted by Paul M. Sutter.