Today 🧒
Child: Does space have an end?
Space is really, really big. Scientists don’t know if it has an end or if it just goes on forever.
Child: How can space go on forever?
Imagine walking in a straight line but never reaching a wall or edge. Space might be like that—no edges to stop us.
Child: But if there is no end, where does all the stuff go?
Stars, planets, and everything spread out in space. It keeps going, so the stuff is spread over huge distances.
Child: How do we know space is so big?
Scientists use telescopes to see far away. They measure light from stars and galaxies to guess how far away they are.
Child: How far can we see with telescopes?
Some telescopes see billions of light-years away. A light-year is how far light travels in one year.
Child: What’s a light-year?
Light moves super fast—about 186,000 miles every second! A light-year is how far light travels in one whole year.
Child: Can space ever end like a circle?
Some scientists think space might be curved like a ball, so if you travel far enough, you could end up where you started.
Child: That sounds like a fun trip! Can I try something like that?
You can spin a globe and trace a path around it. It’s a tiny way to see how moving in one direction could bring you back.
Child: If space is curved, does that mean Earth is curved too?
Yes! Earth is a round ball, and space might be curved on a much bigger scale.
Child: So space might have no edges but can be curved like Earth?
Exactly! Space is huge and mysterious. Keep asking questions—there’s always more to explore!