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Japan’s Kei Nishikori, seen here at the 2017 Australian Open, missed out on this year’s event due to a wrist injury. AAP Image/Dean Lewins

Get a grip: the twist in the wrist that can ruin tennis careers

Wrist injuries forced some of the top players to miss out on this year's Australian Open. It's an ongoing problem and such injuries are partly to blame on how players grip their racquet.
It turns out that the world is about 4,600,000,000 years old. That’s 4.6 billion years. That’s pretty old! Marcella Cheng/The Conversation

Curious Kids: How do scientists work out how old the Earth is?

The world is made of tiny building blocks called 'elements'. Scientists have worked out how fast some elements change into other elements. That gives us a very big clue about how old the Earth is.
Two of the greatest: Switzerland’s Roger Federer (right) celebrates his win in the Men’s Singles Final against Spain’s Rafael Nadal (left) at the 2017 Australian Open. AAP Image/Julian Smith

Workrate, clutch and serve - how Federer and Nadal win Australian Opens

Roger Federer and Rafael Nadal are two of the greatest tennis players in recent years at the Australian Open. So what makes them stand out from the rest?
Glasses help people to see by focusing light onto the retina. Marcella Cheng/The Conversation

Curious Kids: How do glasses help you see?

Many people, from children to the elderly, wear glasses. Andy, age 5, wants to know how they work.
The Small Magellanic Cloud galaxy here seen in infrared light, but it looks different when viewed at other wavelengths. ESA/NASA/JPL-Caltech/STScI

Looking at the universe through very different ‘eyes’

The galaxies, stars and planets in our universe can look very different when you view them through equipment that sees beyond the visible light our eyes can see.
Images are so useful in medical diagnosis - but there are legal and ethical concerns about how they’re used. from www.shutterstock.com

Doctors already use phones to share clinical images of patients – legislation needs to catch up

Has your doctor ever taken a photo of your medical condition? It's really useful to aid diagnosis, but we still don't have the right legislation to ensure legal and ethical protections.
Next year’s must-have games include a number of sequels to popular franchises. from www.shutterstock.com

The five most anticipated digital games of 2018

From _Harry Potter: Wizards Unite_ to _The Last of Us Part 2_, the new year promises some exciting releases in the world of gaming.
The 2017 Geminids as seen from Ecuador, against the backdrop of the splendid Milky Way (centre) and the Large Magellanic Cloud (right). Flickr/David Meyer

Look up! Your guide to some of the best meteor showers for 2018

Your guide to some of the best meteor showers for 2018. Where to look and when in both the northern and southern skies to catch nature's fireworks.
In the Global Biodiversity Information Facility there are 682,447 records of human encounters with dandelions. from www.shutterstock.com

AI is learning from our encounters with nature – and that’s a concern

Does big data threaten how humans explore the natural world? We need to protect our impulses to observe, compare, play, discover and love, no matter what technological capabilities are available.