Water on Mars carved deep gullies and left a ‘great puzzle’ for Red Planet history cqchoi@sciwriter.us (Charles Q. Choi)

[#item_full_content]The post Water on Mars carved deep gullies and left a ‘great puzzle’ for Red Planet history cqchoi@sciwriter.us (Charles Q. Choi) appeared first on NEWDAWN Blog.

The post Water on Mars carved deep gullies and left a ‘great puzzle’ for Red Planet history cqchoi@sciwriter.us (Charles Q. Choi) appeared first on NEWDAWN Blog.