Check your calendars - the Annual Rock Flipping Day is coming

The third Annual Rock Flipping Day will be on September 20th this year. So start scouting for good places to go and be ready to participate.

And if you find cool critters under the rock, you can always submit your posts to the Friday Ark, of which the issue #259 is now live on Modulator.

More like this

The law of superimposition says that stuff found on top is younger than stuff found lower down, in a geological or archaeological column. This is generally true, but there are exceptions, mostly trivial and easily understood.
Bora wants some scientist rock stars Astronomy obliges!
The cores of mountain belts formed by continental collisions often contain metamorphic rocks, formed when sediments were buried in the collision and transformed by heat and pressure.