CisLunar is studying how to turn space debris into fuel for electric propulsion systems, among other things.
“The government's been encouraging companies that help provide the public services in space to also develop commercial customers on the side,” said Harvard’s Matt Weinzierl.
Hydropower is a diminishing resources in a megadrought.
A new chart shows elements sorted by quantities left on earth rather than weight.
A journalist with a baby visits his diaper connection.
A network of fire departments can call for help outside their jurisdictions.
Harvard economist Sendhil Mullainathan has written a book called, "Scarcity: Why Having Too Little Means So Much."
Today and yesterday on Marketplace, we ran a set of stories about end of life care. Yesterday, we looked at the economics of dying. Why is it so…
