Ethan Siegel – Medium

Ethan Siegel

Published in
Starts With A Bang!

Ask Ethan: What does it mean to live in a quantum universe?

Over a century after we first unlocked the secrets of the quantum universe, people find it more puzzling than ever. Can we make sense of…

16h ago

Ask Ethan: What does it mean to live in a quantum universe?

16h ago

Published in
Starts With A Bang!

100 years ago, Cecilia Payne discovered what the stars are made of

For centuries, even after we knew the Sun was a star like any other, we still didn’t know what it was made of. Cecilia Payne changed that.

1d ago

100 years ago, Cecilia Payne discovered what the stars are made of

1d ago

Published in
Starts With A Bang!

Is dark energy weakening? DESI’s results are ambiguous

DESI, by mapping galaxies, has claimed they see evidence for dark energy evolving by getting weaker. But that’s only one interpretation.

2d ago

Is dark energy weakening? DESI’s results are ambiguous

2d ago

Published in
Starts With A Bang!

Just one exo-Earth pixel can reveal continents, oceans, and more

Even from a single pixel, multiwavelength data taken over time can reveal clouds, icecaps, oceans, continents, and even signs of life.

3d ago

Just one exo-Earth pixel can reveal continents, oceans, and more

3d ago

Published in
Starts With A Bang!

The most distant galaxy has oxygen, and that’s no surprise

Someday, we’ll look back and see a young galaxy forming stars for the first time. JADES-GS-z14-0, the farthest ever, isn’t early enough.

4d ago

The most distant galaxy has oxygen, and that’s no surprise

4d ago

Published in
Starts With A Bang!

Ask Ethan: Can we turn Einstein’s equations into Newton’s law?

Einstein’s General Relativity has reigned supreme as our theory of gravity for over a century. Could we reduce it back down to Newton’s…

Mar 28

Ask Ethan: Can we turn Einstein’s equations into Newton’s law?

Mar 28

Published in
Starts With A Bang!

Science’s great paradox: we don’t know what we don’t know until we look

Our scientific instruments are constantly improving, revealing nature’s workings as never before. Without them, we’ll remain in the dark.

Mar 27

Science’s great paradox: we don’t know what we don’t know until we look

Mar 27

Published in
Starts With A Bang!

Following the scientific consensus: how to be “the least wrong”

All scientific theories are limited in scope, power, and application, being mere approximations of reality. That’s why consensus is vital.

Mar 26

Following the scientific consensus: how to be “the least wrong”

Mar 26

Published in
Starts With A Bang!

What are all the different types of nebula in astronomy?

Some nebulae emit their own light, some reflect the light from stars around them, and some only absorb light. But that’s just the…

Mar 25

What are all the different types of nebula in astronomy?

Mar 25

Published in
Starts With A Bang!

How to tell which edge of a galaxy is tipped towards you

When we see spiral galaxies, some are face-on, others are edge-on, but most are tipped at an angle. But which side is closest to us?

Mar 24

How to tell which edge of a galaxy is tipped towards you

Mar 24

Ethan Siegel

Ethan Siegel

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, science communicator & NASA columnist.

Following

Help
Status
About
Careers
Press
Blog
Privacy
Rules
Terms
Text to speech