SCIENCE
-
Ask Ethan: Is there really a “dark side” of the Moon?
One side of the Moon always faces us: the near side. The “dark side” of the Moon began as a…
Read More » -
Jellyfish and bunny ear galaxies have cosmic consequences
Weird-looking galaxies, with tentacle-like tails or prominent dual streams, appear like jellyfish or bunny ears. But that’s just the start.…
Read More » -
Starts With A Bang podcast #123 — Alien physics | by Ethan Siegel | Starts With A Bang! | Nov, 2025
Press enter or click to view image in full size This image shows the cover of Dr. Daniel Whiteson’s and…
Read More » -
Our first terraforming goal should be the Moon, not Mars | by Ethan Siegel | Starts With A Bang! | Nov, 2025
Press enter or click to view image in full size While terraforming an entire world, like the Moon, may be…
Read More » -
The Red Spider Nebula gets its JWST glow-up | by Ethan Siegel | Starts With A Bang! | Nov, 2025
Press enter or click to view image in full size This three-panel look at the Red Spider Nebula showcases Hubble’s…
Read More » -
Ask Ethan: Could evolving dark energy lead to a Big Crunch? | by Ethan Siegel | Starts With A Bang! | Nov, 2025
Press enter or click to view image in full size The far distant fates of the Universe offer a number…
Read More » -
Neutrinos are still the most mysterious particle we know of | by Ethan Siegel | Starts With A Bang! | Nov, 2025
Press enter or click to view image in full size While the final DUNE detectors will live in Illinois and…
Read More » -
Ask Ethan: Why couldn’t the Universe have expanded forever? | by Ethan Siegel | Starts With A Bang! | Oct, 2025
Press enter or click to view image in full size There is a large suite of scientific evidence that supports…
Read More » -
We still don’t know how “hot” the hot Big Bang was | by Ethan Siegel | Starts With A Bang! | Oct, 2025
Press enter or click to view image in full size The early Universe was full of matter and radiation, and…
Read More » -
Ask Ethan: Is the Hubble tension the same thing as dark energy? | by Ethan Siegel | Starts With A Bang! | Oct, 2025
Press enter or click to view image in full size This slice of the DESI data maps celestial objects from…
Read More »