A high school teacher gives his students projects that offer opportunities to help others. He finds these projects generate a lot of enthusiasm in the classroom.

Human cells are extremely small and tightly packed – at about 20 micrometers across, roughly one-fifth the width of a human ...

A new study shows how astronauts could use carbon from Mars’ air to print metal tools, and skip hauling argon from Earth.

Discover the top 5 photo printers on Amazon, allowing you to create high-quality prints of cherished memories or professional ...