Light

Why Do Shadows Change Over Time?

 

Have you noticed that your shadow changes over time? The cartoon on this page shows why shadows change during the day.

 



Screenshot of the shadows animation.


Light and Mirrors Card Match

Short Intro Text: 

Astronomers use light to study things in space. Objects like planets, stars and galaxies all emit or reflect light. Telescopes help astronomers collect light from objects that are far away in space.

How much do you know about the topic of light? Match the word to the correct definition to find out!

 





What Can We See on the Sun?



Close up images of the Sun including solar flares, sunspots, and a solar eclipse


Moonsaic

You have probably seen the Moon in the sky but have you ever studied it in detail? 



Photo of school children assembling the Moonsaic


What Makes Shadows on the Moon?



A close-up view of the Moon's surface. The bottom of the image is in shadow.


The Changing Moon

You can use the Liverpool Telescope to observe features on the Moon’s surface. This is because the telescope has a field of view that shows small areas of the sky in lots of detail.



The Moon at Waning and Waxing gibbous phases.


Why Do We Have Day and Night?



The left half of the picture shows a cartoon day time scene, the right half of the picture shows a cartoon night time scene


Telescopes Quiz

Short Intro Text: 

Telescopes are used to magnify distant objects. They are a vital tool for astronomy. Over the last few hundred years, scientists and engineers have built bigger and better telescopes, revealing the mysteries of the Universe. But how much do you know about telescopes on Earth and beyond?

 





Interferometry

What is Interferometry?

Interferometry is a technique used by scientists and engineers. Tools called interferometers add together 2 or more waves of light. When they do this, the waves of light interact (or interfere) with each other. This can add the waves together, making them brighter. It can also cancel the waves out. Interference only takes place if the waves come from the same object or have the same frequency. We call these types of wave coherent.


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