What powers Cepheid variable stars? What about Mira variables and pulsating stars? And are there variable stars that don’t actually vary at all? The post Aug 19th: How Do Variable Stars, You Know, Vary? appeared first on 365 Days of Astronomy.
What would the Sun sound like if we could hear it? Does any noise at all happen in the universe? What’s the biggest sound of all? The post Aug 5th: What Does Outer Space Sound Like? appeared first on 365 Days of Astronomy.
Why does the vacuum of spacetime have energy? How much energy does it have? What prevents us from using it to do anything useful? The post Jul 22nd: Why Can’t We Get Free Energy from the Vacuum? appeared first on 365 Days of Astronomy.
How do we actually define voids? Are there regions within them that are truly empty? What would it be like to be inside one? The post Jul 8th: Are the Cosmic Voids Really Empty? appeared first on 365 Days of Astronomy.
What are the modern constants of nature? Is the universe fine-tuned for life? Does the multiverse or string theory explain the origins of the constants? The post Jun 17th: Where Do the Constants of Nature Come From? Part 2 appeared first on 365 Days of Astronomy.
How do fundamental constants appear in physics? Why are they so important? Why do we care where they come from? The post Jun 3rd: Where Do the Constants of Nature Come From? Part 1 appeared first on 365 Days of Astronomy.
What’s inside a neutron star? What strange states of matter do we encounter? And what mysteries will we find deep in the core? The post May 20th: What’s Going On Inside Neutron Stars? appeared first on 365 Days of Astronomy.
How do we explain the giant black holes appearing in the young universe? Is it possible to directly collapse a black hole, skipping the formation of stars? What does ultraviolet radiation have to do with this? The post May 6th: Is There Any Other Way to Make Black Holes? appeared first on 365 Days of Astronomy.
How do you measure the impact of a scientist? Does Stephen Hawking compare to Newton or Einstein? What were his contributions to black holes, the big bang, and quantum gravity? The post Apr 22nd: What is Stephen Hawking’s Legacy? appeared first on 365 Days of Astronomy.
Why is the moon so special? Why do we think a giant impact created it? Why didn’t the same thing happen to other planets? I discuss these questions and more in today’s Ask a Spaceman! The post Apr 8th: What Made the Moon? appeared first on 365 Days of Astronomy.
What is 21-cm radiation? What (and who) produces it? What causes it, and what does it tell us about the universe? The post Mar 18th: What’s the Most Important Wavelength in All Astronomy? appeared first on 365 Days of Astronomy.
What is an Alcubierre warp drive? What would it take to make it work? Could it propel spacecraft even below the speed of light? The post Mar 4th: So Is the Warp Drive Legit or Not? appeared first on 365 Days of Astronomy.
What is an axion? How could axions make a star, and what does that have to do with dark matter? What would these stars look like? The post Feb 18th: Are There Invisible Stars in the Universe appeared first on 365 Days of Astronomy.
Podcaster: Paul M. Sutter Title: AaS! Ep. Ep. 241: Could We Travel to Parallel Universes? Organization: INFN Trieste and OSU CCAPP Link : Twitter @PaulMattSutter, http://www.Facebook.com/PaulMattSutter, and http://www.askaspaceman.com Support the show: http://www.patreon.com/pmsutter YouTube: http://www.youtube.com/c/PaulMattSutter Description: Where do parallel universes exist? Could we use wormholes to travel to them? What does time travel have to do with […] The post Feb 4th: Could We Travel to Parallel Universes? appeared first on 365 Days of Astronomy.
Are dark photons as sinister as they sound? What did the curvaton do in the early universe? And is everything really made of preons? The post Jan 21st: Does the Great Filter Explain Why We’re Alone? appeared first on 365 Days of Astronomy.
Are dark photons as sinister as they sound? What did the curvaton do in the early Universe? And is everything really made of preons? The post Jan 7th: What Are the Weirdest Hypothetical Particles? appeared first on 365 Days of Astronomy.
How can the solar corona be hotter than the surface? What has the Parker Solar probe learned so far? What do magnetic fields have to do with all this? The post Dec 17th: What Makes the Sun’s Corona So Dang Hot? appeared first on 365 Days of Astronomy.
Are we “in range” of any potential supernovae? Has the Earth ever been hit in the past? What about gamma-ray bursts from across the galaxy? The post Dec 3rd: Could Any Supernova Harm the Earth? appeared first on 365 Days of Astronomy.
How do black holes get close enough to merge? What causes them to emit gravitational waves, and where do the waves come from? The post Nov 19th: How Exactly Do Black Holes Merge? appeared first on 365 Days of Astronomy.
How did Pluto get demoted? What makes a planet a planet anyway? Why do we now have so many different kinds of planets, and should we make things simpler? The post Nov 5th: Is it Time to Redefine the Planet? appeared first on 365 Days of Astronomy.