A photo showing many different galaxies which are scattered across the image, appearing as dots of various sizes and colors.

every little dot in this photo isn’t a star, but a GALAXY.
and there are 15,000 of them here.

Golden Record Cover - NASA Science In the upper left-hand corner is an easily recognized drawing of the phonograph record and the stylus carried with it. The stylus is in the correct position to play the record from the beginning. Writ...

I've been geeking out on the golden record recently. Imagine the non-human intelligence that finds this and decodes it. How impossibly difficult it would be to grok encoding of the time base is the fundamental transition of the hydrogen atom. Imagine how exciting… science.nasa.gov/mission/voya...

Beautiful! Is that from the Juno data?

I know everyone is into Axlers Linear Algebra Done Right currently. It’s a fine book. But, Strang’s LA class on YouTube is much more practical if you just want to know LA.

Pluto as seen by the New Horizons space probe

Some of my mountain adventure from this summer.