Guest Videos: The Winds of Mars


The hardest part of space exploration, at least for laypeople trying to keep up to date, is getting used to familiar things, like wind, in unfamiliar settings.

Mars is smaller than the Earth, but it has enough wind to support the currently ongoing planetwide dust storm that has shut down Opportunity (hopefully, temporarily). And we have seen its twisters, though they don’t look as powerful as ours.

Martian winds must be pretty powerful, though, right? After all, the planet’s surface looks like it has been scoured in places:




There are some awesome wind-made features on the Red Planet, including yardangs. To really appreciate them, we need to understand just how weak the winds of Mars actually are.

Spoiler: Not quite as strong as they are depicted in The Martian.



Those beautiful Martian dunes and streamlined rocky features must have taken way longer than it took to sculpt similar structures on Earth. But then, according to a new study, Mars may have gotten a hundred-million-year jump on the Earth in terms of this whole solid planetary crust thing.

All told, over billions of years even weak winds can have impressive effects.




Featured image: NASA/JPL.


Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.