This Renewable Energy Device Powers 100 LEDs with a Single Drop of Water
What if an umbrella could charge your phone? By tweaking well-known principles, scientists have created a highly efficient generator that can pump out lots of renewable energy with just a bit of water.
This Is the Best Spot for Humans to Land on Mars Yet, NASA Says
If humans want to not die on Mars, they’ll need a reliable source of water. NASA scientists think they’ve found it in a place where ice is so close to the surface that astronauts could get to it with a shovel.