Astronomy Picture of the Day · February 19, 2003

Pauli Exclusion Principle: Why You Don't Implode

The Astronomy Picture of the Day for February 19, 2003 is “Pauli Exclusion Principle: Why You Don't Implode,” an image. The picture is copyrighted by its creator (Credit & Copyright: Andrew Truscott & Randall Hulet ( Rice U. )). The original explanation runs about 160 words.

From the explanation

“Why doesn’t matter just bunch up? The same principle that keeps neutron stars and white dwarf stars from imploding also keeps people from imploding and makes normal matter mostly empty space.”

— APOD editors, February 19, 2003

Read the full explanation on science.nasa.gov

At a glance

Date: February 19, 2003
Type: Image
Credit: Credit & Copyright: Andrew Truscott & Randall Hulet ( Rice U. )
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 160 words

All of February 2003 → · 2003 by month → · Full archive since 1995 →

On this day: February 19 in other years

On Amazon

Popular picks for space fans

As an Amazon Associate I earn from qualifying purchases.

Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read astronomy and space-history books anywhere. View on Amazon → Electronics Bose QuietComfort Wireless Headphones Noise-cancelling headphones for documentaries and launch livestreams. View on Amazon →

Source

Astronomy Picture of the Day, February 19, 2003 — science.nasa.gov/image-article/apod-2003-february-19-pauli-exclusion-principle-why-you-dont-implode

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.