The universe is vast and our journey to understand it has just begun.

An curved arrow pointing right. Space is so unfathomably large and so unbelievably weird, that it can sometimes be difficult to convey basic facts. For example, you can fit all of our solar system ...

Gray wrote for Scientific American. If you're in total darkness at the coldest spot in the known universe, the vacuum of space can get down to -454 degrees Fahrenheit. Brr! But in sunlight near ...

Sound as we know it does not exist in space. That’s because, on Earth, sound mainly travels to our ears via vibrating air molecules. Because space is a vacuum, meaning there is no matter at all ...

Despite being unspectacular, Deimos remains a fascinating mystery. Deimos is one of only three moons in the inner solar system, and its origins are uncertain, meaning it still holds many secrets.