A series of new animations by a NASA scientist show just how zippy — and also how torturously slow — the speed of light can be. Light speed is the fastest that any material object can travel ...

This 1930s educational film illustrates the interconnected forces of nature, celestial motion, and Earth's geology through vivid animations and live demonstrations. It begins by explaining the ...

The moon is slowly moving away from us. About 4.5 billion years ago, a Mars-sized object (or perhaps a series of many smaller objects) crashed into Earth, sending bits of Earth's crust into space.

Have you ever wished the Jupiter or Saturn were closer to Earth? Saturn’s rings would offer a more interesting view than the Moon’s craters, right? Well, now you can stop imaging. Amateur ...

Contrary to what you may have heard, there is no mysterious dark side of the moon. Yes, there is a side of the moon that we never see from Earth, but it's not dark all the time. James O'Donoghue ...

Chilling animations depict the apocalyptic impact that “city-killer” asteroid YR4 2024 could have if it did hit Earth — while astronomers warn that the moon could be in the line of fire as well.