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Listed under:  Science  >  Earth and space  >  Atmosphere  >  Atmospheric light  >  Sky
Video

Why we can see some planets but not others

In this planetarium demonstration, the air has been sucked out of the sky to give us a black sky so we can actually see the planets that are above us. Why is it that we can't always see the planets? How does our proximity to the sun affect how visible a planet is to us?

Video

Why do the stars move across the sky?

If you stand still and look up at the night sky for hours on end, you'll notice that the stars will move across the sky westwards. The truth is, it's not the stars that are moving, it's us! Do you know how the Earth moves in space? What do we orbit?

Video

Phases of the moon

Can you name the different phases of the moon? Watch this video and learn about the phases, how long a full lunar cycle is and why the moon looks larger at times.

Video

What is a cumulus cloud?

There are many different types of clouds, all with different names. Here, Brianna finds out what a cumulus cloud is. What are other types of clouds?

Video

Stars in the southern hemisphere

Have you heard of the Southern Cross? It's a constellation (a grouping of stars) that can be found in the southern hemisphere. What does it look like? See if you can follow the tips from this video and find it in the sky at night!

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How the sky works

This ABC Astronomy Basics article is an excellent example of simple explanations of many of the phenomena we observe in the sky. Features such as constellations, neighbouring galaxies and nebulae are outlined. It explains that finding constellations and planets in the ever-moving night sky can be challenging. It gives tips ...