Tectonic Surfing

https://xkcd.com/2987/

Every Scientific Field

https://xkcd.com/2986/

Asteroid News

https://xkcd.com/2984

Craters

https://xkcd.com/2985/

Monocaster

https://xkcd.com/2983/

Water Filtration

https://xkcd.com/2982/

https://www.youtube.com/watch?v=UXA-Af-JeCE

Slingshots

https://www.xkcd.com/2981/

Lava Lakes

https://xkcd.com/2980/

Sky Alarm

https://xkcd.com/2979/