NASA astronaut Matthew Dominick captured this amazing view from the International Space Station using a new 15mm lens (T1.8, 1/3s exposure) that was delivered on a recent Cygnus cargo ship. Credit: ...

Rainbows may be a trick of the eye, but they’re also based in fascinating optical physics. Here's how they work and why we ...

In 1934, the celestial bodies began to twinkle, clouds floated across the dome ... And there is also an ‘Earth – Moon’ model, ...

Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space telescopes ...