Scientists are seeing deeper and deeper into space.

Could they find another planet?

Today, we'll hear the latest in space news.

I'm Bethany Van Delft.

It's September 9th, and this is the 10 News.

10, 9, 8, 7, 6, 5, 4, 3, 2, 1.

My very educated mother just served us noodles.

What?

That's a mnemonic device, or a way to remember the names of all the planets in our solar system.

The sentence is based on the first

letters of each planet, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

It used to be, my very educated mother just served us nine pizzas back when Pluto was on the planet

list. Why did Pluto get taken off the list?

And is there another ninth planet out there? Jacob and Olivia Rosenzweig from the Curious

Kid podcast are here to tell us more about what's up with the solar system.

When I was a kid, there were nine planets.

They included the eight planets we know of today, plus the planet furthest from the sun named Pluto.

But something strange happened 15 years ago.

That's when scientists decided to demote Pluto to a dwarf planet, leaving us with only eight planets. Okay.

In order to be considered a planet, three things need to be true. First, it has to orbit the

sun. It takes one year for Earth to orbit the sun. Plans that are closer to the sun, like

Mercury, for example, are able to orbit the sun faster.

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