This started as a mountain range.
Sand may seem abundant when your toes are buried in it, but it's becoming scarce along many coastlines around the world.
Russian President Vladimir Putin (waving) with some of the heads of state who attended the first Russia-Africa Summit in Sochi, Russia.
At the Sochi summit, African states embraced Russia's newly established relations.
Pictured is a slag pile at Broken Hill in New South Wales. Slag is a man-made waste product created during smelting.
Manufacturing minerals is an expanding field of study. Making more of them could help alleviate various pressures faced by our growing population. But how are they made, and where can they be used?
The view of our planet from aboard the International Space Station.
Of all the planets in the solar system, there’s a reason we call Earth home. It’s made of just the right stuff. It’s not too small, or too big, or too hot or too cold. It’s just right.
Are the celebrities onto something with their IV vitamin cocktails? Let’s look at the evidence before rushing to the therapy lounge.
If their social media accounts were anything to go by, celebrities can't get enough of vitamin and mineral infusions, or vitamin drips. Now therapy lounges are popping up for everyone else to try.
One recent study revealed no evidence that selenium supplements help prevent diabetes, even in geographical areas where there are relatively low amounts of selenium in the natural diet.
Most vitamins and other nutritional supplements are unlikely to prevent chronic disease. Invest in good quality foods, sleep and exercise instead.
Surgeonfish on a reef in the Maldives.
Drastic oxygen losses in the world's oceans millions of years ago coincided with mass extinctions. Scientists see this as a warning about how climate change could affect oceans today.
Space mining has the potential to provide a greater supply of resources either for being exploited locally for construction or being sent back to earth.
Electric cars and smartphones have created growing demand – and volatile prices – for once obscure metals.
Taste the rainbow.
More and more people are trying veganism, but how does the human body respond to losing animal products from its diet?
The mining industry in South Africa needs an inclusive model that builds on and improves shared value.
Could a secret ingredient make crumbling concrete a thing of the past?
Adding a bit of fungus to the initial ingredient list might be one way to endow concrete with the ability to fill in any bits of damage that occur, without the need for human intervention.
Tasty, nutritious, traditional – it's a seasonal superfood. Here's the evidence.
Copper and other minerals will be increasingly important to the growing renewable energy sector.
In the decades ahead, our mineral supply will still need to double or triple to meet the demand for electric vehicles and other renewable energy technology.
Rural areas across South Africa are hosting battles for control of land.
A different form of state capture is underway in South Africa's rural areas where traditional leaders are selling off people's land to miners. But communities are fighting back.
There’s evidence vitamins can slow the progression of existing macular degeneration.
Vitamin and mineral supplements won’t prevent the development of age-related macular degeneration. But there is some evidence taking supplements containing vitamin C, vitamin E and zinc may slow the progression…
Former president of Boswana Ketumile Masire.
Botswana’s late president Ketumile Masire was original and daring. He should be remembered for his courage and prudence.
There are things that come from plants that aren’t in multivitamins.
Recent diet and health surveys show the typical Australian diet is far from what is considered a healthy diet. Can vitamin and mineral supplements come to the rescue?
Africa needs to structure better economic deals with China.
The Chinese £1bn investment in Sheffield, a former mining town in northern England, comes with valuable lessons about how Africa can maximise economic value in its dealings with China.
If the government wants people to be healthy, they're going to need to make varied diets more affordable.