What is 21-cm radiation? What (and who) produces it? What causes it, and what does it tell us about the universe?
Mar 18th: What’s the Most Important Wavelength in All Astronomy?
Paul M. Sutter Archive
Mar 4th: So Is the Warp Drive Legit or Not?
What is an Alcubierre warp drive? What would it take to make it work? Could it propel spacecraft even below the speed of light?
Feb 18th: Are There Invisible Stars in the Universe
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?
Feb 4th: Could We Travel to Parallel Universes?
Jan 21st: Does the Great Filter Explain Why We’re Alone?
Are dark photons as sinister as they sound? What did the curvaton do in the early universe? And is everything really made of preons?
Jan 7th: What Are the Weirdest Hypothetical Particles?
Are dark photons as sinister as they sound? What did the curvaton do in the early Universe? And is everything really made of preons?
Dec 17th: What Makes the Sun’s Corona So Dang Hot?
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?
Dec 3rd: Could Any Supernova Harm the Earth?
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?
Nov 19th: How Exactly Do Black Holes Merge?
How do black holes get close enough to merge? What causes them to emit gravitational waves, and where do the waves come from?
Nov 5th: Is it Time to Redefine the Planet?
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?