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AaS! 223: Why is it So Hard to Return to the Moon?
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/pmsut
AaS! 222: What is the Most Distant Thing We Can See?
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:/
AaS! 221: Will Emergent Gravity Rewrite Physics?
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:/
AaS! 220: Will Our Universe End in a Big Rip?
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.patr
AaS! 219: What's the Best Way to Defend Our Planet?
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.p
AaS! 218: How Do We Know What the Milky Way Looks Like?
Why is it so hard to get a picture of the Milky Way? How much of our galaxy have we mapped? What the heck is a "barred spiral" and what does that have to do with our core? I discuss these questions and more in today's Ask a Spaceman! Suppor
AaS! 217: Will We Achieve Fusion Power Soon?
How do we achieve nuclear fusion in the laboratory? What are some experiments that are trying to achieve fusion power generation? Why is it so difficult? I discuss these questions and more in today's Ask a Spaceman! Support the show: http:/
AaS! 216: Do Aliens Look Like Us?
Is evolution universal throughout the cosmos? What are the different forms that life can take? When did life first appear in the universe? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.co
AaS! 215: How Does Science Regain Trust?
What forces people to lose trust in science? How does this affect the process of science itself? What are scientists doing to make this worse? How can we fix it? In this special episode themed from my latest book, I discuss these questions
AaS! 214: Is Empty Space Really...Empty?
What's floating around in space between all the stuff? Are there any truly empty places in the universe? What is the "fabric" of spacetime? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.c
AaS! 213: How Were Ancient Astronomers So Good?
How were ancient people able to predict eclipses so well? How did they make predictions without modern science? What were they able to discover? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patr
AaS! 212: Where Do All the Elements Come From?
What processes create all the elements? Why are some elements more common than others? How does fusion happen inside and outside of a star? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.c
AaS! 211: Will AI Take Over Astronomy?
How long have astronomers been using artificial intelligence? How do computers sift through massive amounts of data? Will AI discover something new about the universe? I discuss these questions and more in today's Ask a Spaceman! Support th
AaS! 210: How Does Space Affect the Climate?
What triggers ice ages and other climate events? How are sunspot cycles and orbital motions related to climate patterns? What does Jupiter have to do with all this? I discuss these questions and more in today's Ask a Spaceman! Support the s
AaS! 209: What Secrets Are Hiding in Triton?
What's so cool about Triton? How did it end up in orbit around Neptune, and what can we learn from it? Could we send a mission there one day? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon
AaS! 208: Where Are All the White Holes?
How are white holes different from black holes? What would happen if you were stuck inside of one? Why don't they appear in the universe? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com
AaS! 207: How Far Do We Travel in Our Lives?
What is the combined motion of everything in the universe? How does all of that influence us? Are we just going around in circles, or is there something more? I discuss these questions and more in today's Ask a Spaceman! Support the show: h
AaS! 206: What are the Weirdest Names in Astronomy?
What are some wild stories behind names in astronomy and physics? How did we get the jargon words that we did? What are some of the funniest names? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.p
AaS! 205: What's the Difference Between Science and Pseudoscience?
What's the difference between science and pseudoscience? What is a scientific mindset? How are we able to spot pseudoscience when it's happening? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.pat
AaS! 204: How did Annie Jump Cannon Bring Order to the Universe?
How was massive astronomy done in the 1800's? Who were the Harvard Computers? How did Annie Jump Cannon figure out how to classify stars? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com
AaS! 203: Is the Universe a Giant Black Hole?
Why didn't the big bang collapse in a singularity? What would a universe-sized black hole be like? Now that I think about it, do we live inside a giant black hole already? I discuss these questions and more in today's Ask a Spaceman! Suppor
AaS! 202: Could the Earth Leave the Solar System?
Could we nudge the orbit of the Earth to avoid the death of the Sun? Could it get kicked out of the solar system altogether? What are rogue exoplanets? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://w
AaS! 201: How Does Light Slow Down?
If light always travels at the speed of light, how does it slow down when passing through air or water? Does it matter if light is made of particles or waves? What's the difference between phase velocity and group velocity, and how does tha
AaS! 200: What are the Top 5 Mysteries in Astronomy?
What are the biggest mysteries facing modern astronomers? What questions do I wish could be answered in my lifetime? What are most astronomers working on right now? I discuss these questions and more in today's Ask a Spaceman! Support the s
AaS! 199: What are the Top 5 Discoveries of All Time in Astronomy?
What discoveries and insights made the biggest impacts in astronomy and physics? What were the biggest surprises? What results took the longest to achieve? I discuss these questions and more in today's Ask a Spaceman! Support the show: http
AaS! 198: What's So Weird About Black Hole Shadows?
How does a black hole make a shadow? What can we learn from it? What are we seeing when we look at a black hole? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: h
AaS! 197: Which is Better, Human or Robotic Exploration?
What are the advantages of robotic exploration of the solar system? What are the limitations? Is there any situation where human exploration is better? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://w
AaS! 196: Could We Ever Build a Dyson Sphere?
What are Dyson spheres? What would be involved in building one? How much energy would it cost, and could we ever pay it back? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter Al
AaS! 195: How Cold Can Space Get?
What's the temperature of deep space? Can it get any colder than that? How do we even define temperature when there's nothing around? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pms
AaS! 194: Does the Universe Rotate?
How do we know that the universe doesn't rotate? Why would it matter if it did? What does all this have to do with time travel? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter
