How can our solar system never end?

Talia from New Zealand wrote:

How can our solar system never end? It has to end at some time doesn't it?

GLOBIO Traveling Teacher says:

Hi Talia,

That is a great question that one no one knows the answer to. Scientists are trying to understand how big the universe is, where it started and where it could end, but we just don't know. Living here on Earth we are just a small part of the universe. It may take many hundreds of more years before any scientists discovers the answer to your question.

Maybe think about this: circles never end. Maybe our universe is like that?

Thanks for the great question,
GLOBIO Traveling Teacher

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What energy does the sun bring?

Semaj from the United States wrote:
What energy does the sun bring?

GLOBIO Traveling Teacher says:

Hi Semaj,

The sun sends (radiates) off energy mostly in the form of heat and light and small stream of charged particles called gamma rays. As the energy leaves the hot sun surface and travels across the solar system to Earth it travels in constant waves - like on the surface of the ocean or a river. The waves enter Earth's atmosphere and slow down. They are critical to maintaining life on Earth.

You can find out more about our Sun by clicking on the picture below. It will take you to the Sun article in Glossopedia.

Thanks for the great question,
GLOBIO Traveling Teacher

To learn more click here: