Earlier this month, aerospace company Boeing unveiled what it is calling "the lightest metal ever ... and telescopes to block out light when capturing images of objects in space.

"Ending 2024 with a historic approach!" Astroscale posted online. "Our ADRAS-J mission has achieved the closest ever approach ...

A shadow is a dark shape made when light is stopped or blocked by an object or a person. Some objects are opaque such as stone, metal and wood. This means light doesn't travel through them.

The simple answer is how heavy something is for its size. If something seems very heavy for its size (like a heavy metal object), we say it is more dense. If something seems light for its size (like a ...

Have you ever found yourself suddenly in need of finding a small metal object hidden in the woods? No? Well, neither have we. But we can’t say the same thing for [zaphod], who’s family was ...

But some metals are magnetic and some are not. The most common magnetic metal is iron. You don't see too many objects made of pure iron but you do see lots of different things made of steel, which has ...

An experiment by KSL's COLD Podcast has revealed the likely source of a key piece of evidence in the death of Susan Cox Powell, 15 years after she disappeared.