Large volumes of liquid water transiently existed on the surface of Mars more than 3 billion years ago. Much of this water is hypothesized to have been sequestered in the subsurface or lost to space.

Transportation, in its broadest sense, is an important task in many fields, including engineering, physics, biology, and economics, and a great deal is known about optimal and efficient strategies to ...

We thank Ping Chun (Gloria) Wu from the Department of Laboratory Medicine and Sudip Ghosh from the Department of Experimental Medical Science, both at the Lund Stem Cell Center, Faculty of Medicine, ...

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Maria A. Holland et al.

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