By Amanda Freeman, 4 December 2024
When astronomers first looked at the Moon through telescopes, they thought they were seeing great oceans. They gave the Moon’s big, dark patches names such as Oceanus Procellarum, and the Sea of Tranquillity. Now we know that these ‘seas’ are ancient lava flows, and that the Moon’s surface is very dry. It’s also airless.
Categories:
By Ariel Marcy, 3 December 2024
A famous person built a square house so that the windows on all four sides look south. Where is this house? (And can you name the famous person?)
By Chenxin Tu, 26 November 2024
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.
By Ariel Marcy, 22 October 2024
Space is huge. But exactly how huge are the spaces between the Sun, Moon and planets? Find out by making a scale model of the inner solar system at your nearby park!
By Ariel Marcy, 15 October 2024
With this quiz, everything is looking up! Can you dazzle us with a stellar 5/5?
By Ariel Marcy, 6 September 2024
If good things come to those that wait…then these bold oldies are gold! Do you have the patience and wisdom to top this quiz or will you need to wait for the next one?
What caused the dinosaurs to go extinct 66 million years ago? Most scientists think an asteroid impact sealed their fate. But others think massive volcanic eruptions in India did the job. Now, scientists from Europe have used chemistry to support the asteroid theory and they can even say where the asteroid came from!
By Ariel Marcy, 6 August 2024
Meet Aurora Foo: when a natural disaster strikes, she’s helping the helpers. Her job is assisting situation rooms and command centres around the country!
By Ariel Marcy, 25 July 2024
On 11 July, Australian scientists made a super-fast connection with a satellite. This feat of engineering required the team to aim a laser up in space at a receiver built into the back of a ute.
By Amy Briggs, 12 June 2024
Would you like to help satellites keep an eye on Australian water quality? This hands-on activity shows you how! Through the EyeOnWater app, you can help CSIRO scientists match satellite data to photos of the water in your neighbourhood!
12 months, 8 issues
Print & digital subscriptions available.
Sign up to our Double Helix newsletter
Stay in touch with new updates by signing up to our free newsletter
Perfect for ages 8 – 14
Developed by experienced editors
Engaging and motivating
*84% of readers are more interested in science
Engaging students voice