Why are private space companies pushing tourism? Is there a future for tourism in space? Is this an overall good thing for space exploration, or just a distraction?
Sep 17th: Is Space Tourism a Good Idea?
Paul M. Sutter Archive
Sep 3rd: What Made the Local Bubble?
Where do we live within the galaxy? What shapes the local bubble? How long will we be inside it?
Aug 20th: Is the Universe Making Any New Galaxies?
Aug 6th: Is the James Webb Breaking Cosmology?
Jul 16th: Can a Galaxy Be Destroyed?
Can galaxies ever get destroyed? What happens to their stars? Do galaxies ever die? More on today’s Ask a Spaceman!
Jul 2nd: Where is the Center of the Universe?
What does it mean for the Universe to have a center? Could we ever travel to ours? What is a singularity?
Jun 18th: Does the Universe Get Shorter When You Go Faster?
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?]
Jun 4th: What is the Cosmic Flaw That Shouldn’t Exist?
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!
May 21st: Can Life Survive on Locked Planets?
How do planets get tidally locked? What are these systems typically like? Can life find a home in such a challenging environment?
May 7th: 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?