Issue 12 - LAST CHANCE TO SEE!

As climate change sets in, some of the wonders of the world may not wait around for you to experience them. David Salt makes a whirlwind tour of the top 10 places you need to visit - before they disappear.

In this travel issue of Cosmos, we highlight the best places Earth has to offer. From the long-hidden treasures of Angkor, Cambodia, to a kingdom ruled by birds in the remote South Pacific, our writers transport you to the wonders of our world.

Issue 11 - THE GREEN ISSUE

Many of the problems we face today are not insurmountable: it's amazing how just a few changes can have a dramatic impact. Take cars: if all of us drove petrol-electric hybrids we'd be 70 per cent of the way to reaching the targets we need to by 2050 in order to stabilise the planet. Not bad.

In this issue of Cosmos we look at some of the background and solutions to our growing environmental challenges. We look at green cars, technology mimicking nature, Earth's evil twin, the coming plagues and more.

Issue 10 - MARIJUANA AND THE BRAIN

Cannabis divides people: some see it as unfairly demonised, others as a medical catastrophe in the making. Elizabeth Finkel breaks through the panic and the hype to find out what science has to say.

Issue 9 - THE WATER CRISIS

Australia is facing a water crisis. The population has increased 20-fold in the last 200 years, and climate change is about to make things worse: where rain once was plentiful, it is likely to decrease. But now, more than ever technology offers solutions. The only question is whether the public will swallow it. Sara Phillips reports.

Issue 8 - THE FUTURE OF ENERGY

It's the biggest issue facing our society, our economy and even human civilisation in the 21st century: our galloping demand for more energy... and urgent need to reduce greenhouse gas emissions. In this 19-page special report, COSMOS looks at two sides of the problem: the oil we need to keep our vehicles and industry running, and where we get our electricity.

Issue 7 - STAR STRUCK
The psychology of our celebrity obsession

Our modern obsession with celebrities may be the result of evolution, scientists say. We delve deep into human psychology to answer the question: Why do we care about the lives of the rich and famous? You may dismiss celebrity gossip as harmless fun, but it may be not only be deeply ingrained in the human psyche - it may even be good for you, as Erica Harrison discovers.