Earth Day is on Tuesday, April 22, this year. The annual observation is set aside to increase awareness around environmental ...

We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third ...

And that means kids in space. Providing the nurturing care they'll need will not be easy. Right now, 100% of the human species calls Earth home. But very soon, on the timescale of human ...