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Sirius is the brightest star in the whole sky and is visible in the Southern Hemisphere in the constellation Canis Major, which is near Orion. Alpha Centauri is the brighter of the pointer stars that point at the Southern Cross. It’s the third-brightest star in the sky, and it’s actually two stars orbiting each other. Actually, it’s three stars, but the third, Proxima Centauri, is so far from the other two that it appears as its own star in the sky.

Magnets are surrounded by an invisible magnetic field that shoots out from the magnet’s north pole and then curves back towards the south pole. You can imagine that they sprout arrows that point from north to south. When the same poles are pushed together, the line arrows point opposite ways and the two magnets get repelled. When opposite poles are pushed together, the line arrows point the same way and the two poles are attracted. Opposites attract!

Bertha Benz completed her record-breaking road trip in August 1888, just two years after her husband Karl Benz developed the first modern automobile. Bertha did the road trip without telling Karl!

Auroras occur mostly at the poles due to the way Earth’s magnetic field channels high-energy particles from the Sun. When these particles collide with atoms in our atmosphere, it makes a beautiful glow. Near the South Pole, Antarctica is a prime location for auroras.

Tsunami comes from two Japanese words: “tsu” meaning port or harbour and “nami” meaning wave. Japan sits in a very geologically active place, meaning they are more likely than most other countries to experience earthquakes and tsunamis.

NASA’s InSight lander detected several “Marsquakes” and recorded meteorite impacts, too. Once every 5 years or so, Mars has dust storms that cover the entire planet! Meanwhile, tropical cyclones need to form over an ocean, which Mars currently doesn’t have.

Something you show is the odd one out though it may be a way you prove your identity in real life. MFA usually relies on something you know first, like a password and then verifies your identity by sending you a code to your device and/or gathering biometric data like a fingerprint. These combos make your sign in much more secure!

Polymer banknotes are harder to fold compared to paper money. But that trade-off comes with lots of benefits. Polymer banknotes are waterproof and can’t be easily ripped. Polymer banknotes last at least 2.5 times longer than paper and they more recyclable than paper banknotes.

False. Historians found a recipe for a baldness cure written by a Cleopatra. But it uses weight measurements that were invented after Queen Cleopatra died!

True. After more than a decade of work, CSIRO scientists invented highly efficient, flexible and roll-up-able solar panels. These special solar panels can be put on buildings and even clothing! In March of this year, they were launched into space where they successfully powered a spacecraft.