The ice must flow to make Pluto’s dunes, but how?

[ This blog is dedicated to tracking my most recent publications. Subscribe to the feed to keep up with all the science stories I write! ]

And if I can be shameless: Forbes pays according to traffic, so the more of you who share and visit and read my stuff, the better they pay me. Ahem.

The Wrinkles On Pluto’s Heart Could Be Methane-Ice Dunes

possible dunes on Pluto

In this high-resolution image of Pluto’s heart, you can see wrinkles in the nitrogen ice. Those are possibly dunes made of methane, which raises an interesting question: how can such dunes form? [Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute]

For Forbes:

Sand dunes are found all over Earth: along the shores of lakes or oceans, deserts like the Sahara in Africa, and even underwater. Robotic space probes have also found dunes on Venus, Mars, and Saturn’s giant moon Titan.

Now researchers think they have found dunes on Pluto, which presents a huge (and fun) mystery. How can dunes form on a world where the atmosphere is a bare wisp, not enough to create the kind of winds responsible for making dunes elsewhere in the Solar System?

[Read the rest at Forbes…]

Advertisements

Let me know what you think! Please see the Commenting Policy http://galileospendulum.org/commenting-policy/

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 )

w

Connecting to %s

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