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Twinkle, twinkle, giant stars! Pairs of so-called ‘heartbeat’ stars change their brightness like the rhythm of a beating heart. For the first time, new models show that they also create gigantic waves.

With this quiz, everything is looking up! Can you dazzle us with a stellar 5/5?

This quiz is all about shiny things. Will there be a glimmer in your eye as you get 5/5?

Do you know how frogs breathe? We do! Test your knowledge in our latest quiz covering topics from plants and stars, to rocks and bytes.

Here’s a tricky puzzle for you! An eight pointed star, and seven coins. Can you put all the coins onto the star?

Written by Sarah Kellett Our Sun has a neighbour, and it’s as cold as the North Pole. An invisible brown dwarf has been found a mere 7.2 light years away, by space telescopes searching in the infrared.