Greg Foot discovers why the sky is blue. He explains that outside the Earth’s atmosphere space looks black, but from the Earth’s surface the sky looks blue. He investigates this effect by ...

One among those concepts is, “Why does the sky appear blue during the day but space looks pitch black?” Doesn’t it really wreck the human mind? To truly get an answer to this, we need to ...

It’s a simple question and one of the first often asked by inquisitive children: Why is the sky blue? The complex answer to this seemingly straightforward inquiry was explained by one of the most ...

In this week’s episode of Space Minds, Bill Nye, CEO of the Planetary Society sits down with host David Ariosto. The ...

(Why is the sky blue? Learn about it with your kids.) The aurora borealis lights up the night sky behind Iceland's iconic Kirkjufell volcano. Auroras are caused when charged particles from the sun ...