Northern dune in the early spring season defrosting! Image credit: NASA/HiRISE/ASU

Northern dune in the early spring season defrosting! Image credit: NASA/HiRISE/ASU

Greetings, Earthlings! Hope everyone is keeping warm!

Meanwhile on Mars...

When the winter season overtakes the hemispheres of Mars, a light covering of carbon dioxide frosts over the northern or southern sandy hills and plains, almost preserving the sandy dunes in time. As sunlight is able to penetrate through this frost layer, the carbon dioxide *pops* and blackens the sand temporarily due to immediate exposure!

Ice spiders emerging! Image credit: NASA/HiRISE/ASU

Ice spiders emerging! Image credit: NASA/HiRISE/ASU

These little black spots are affectionately known as "ice spiders"!

Thanks for reading and come back next week for what ocean worlds are up to!

Larger and longer dune fields defrosting! Image credit: NASA/HiRISE/ASU

Larger and longer dune fields defrosting! Image credit: NASA/HiRISE/ASU