My understanding with Ganymede and Callisto is that, unlike Europa and Enceladus, their subsurface oceans are separated from the rocky core by another layer of ice...

Is there anything in the solar system more compelling than Europa and Enceladus? Not in my mind. Even Titan is a far behind either. Or maybe deep groundwater on Mars, but drilling thousands of...

Historic moment!

Interesting article about the processors Perseverance uses: https://www.theverge.com/tldr/2021/3/2/22309412/nasa-perseverance-mars-rover-processor-cpu-imac-1998

Basically, it uses a special...

So. Fucking. Rad.

Incredible!

But with even more amazing rock formations thanks to the low gravity, e.g. the floating spoon:

https://i.dailymail.co.uk/i/pix/2016/12/26/17/3BA6EE0D00000578-4066618-image-a-53_1482772333193.jpg
...