Astro-comb

An astro-comb is a special tool that helps scientists study light from space. It's kind of like a ruler, but for light waves instead of physical objects like blocks or toys.

When light travels through space, it can get stretched out or squished together, which makes it harder to measure accurately. The astro-comb fixes this problem by creating a grid of evenly spaced lines that the light waves can line up with. This helps scientists measure the light much more precisely, like how a ruler helps you measure the length of a piece of paper.

This is really important because when scientists study light from space, they can learn a lot about what's out there. They can find new planets, figure out what stars are made of, and even study the way the universe is changing over time.

So, the astro-comb is a really cool tool that helps scientists study light waves and learn more about the universe!