LCS-1 – Oldest spacecraft still in use (en.wikipedia.org)

Ran into this while I after reading about Project West Ford, which was also really interesting: https://en.wikipedia.org/wiki/Project_West_Ford

"[I]t has no power supply or fuel; it is merely a metal sphere."

There's something beautiful about that.

More info + photo here: http://space.skyrocket.de/doc_sdat/lcs-1.htm

Can hardly believe LCS-1 is still in orbit, given how low its density is.

https://en.wikipedia.org/wiki/LARES_(satellite) has a density of 15,833 kg/m^2, and is the densest orbiting object in the Solar System.