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8 lessons on lifelong learning from an astrophysicist

8 lessons on lifelong learning from an astrophysicist

Beyond stars, galaxies, and gravity, studying the fundamental workings of nature reveals widely applicable lessons for learners everywhere.
Go to the profile of Ethan Siegel
Ethan Siegel
How has the James Webb Space Telescope changed cosmology?

How has the James Webb Space Telescope changed cosmology?

More than two years after JWST began science operations, our Universe now looks very different. Here are its biggest science contributions.
Go to the profile of Ethan Siegel
Ethan Siegel
Euclid mission reveals “page 1” of our cosmic story

Euclid mission reveals “page 1” of our cosmic story

What are dark matter and dark energy? The large-scale structure of the cosmos encodes them both, with ESA’s Euclid mission leading the way.
Go to the profile of Ethan Siegel
Ethan Siegel
Ask Ethan: Why is the Big Bang shown as a tube?

Ask Ethan: Why is the Big Bang shown as a tube?

The most common visual depictions of the history of the Universe show the Big Bang as a growing tube with an “ignition” point. Why is that?
Go to the profile of Ethan Siegel
Ethan Siegel
Time: yes, it’s a dimension, but no, it’s not like space

Time: yes, it’s a dimension, but no, it’s not like space

The fabric of spacetime is four-dimensional, with three for space and only one for time. But wow, time sure is different from space!
Go to the profile of Ethan Siegel
Ethan Siegel
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