Introduced by Jim Al-KhaliliCould you surf down an erupting volcano?Why do zebras have stripes?Are you breathing the same air as Leonardo da Vinci?Are there any green mammals?Why do pineapples have spikes?Why do songs get stuck in your head?What happens when black holes collide?Can you extract your DNA?New Scientist has be...

Ever wondered what's going on inside your head?You are your brain. Everything that makes you you, and all your experiences of the world, are somehow conjured up by 1.4 kilograms of grey matter inside your skull. That might seem impossible, but science has advanced so much that we now understand not just its structures and inner workings but also how it can give rise to perception, consciousness, emotions, memories, intelligence, sleep and more.HOW YO...

Forget everything you thought you knew about reality.The world is a seriously bizarre place. Things can exist in two places at once and travel backwards and forwards in time. Waves and particles are one and the same, and objects change their behaviour according to whether they are being watched. This is not some alternative universe but the realm of the very small, where quantum mechanics rules. In this weird world of atoms and their constituents, our common sense ...

There's a whole universe out there...Imagine you had a spacecraft capable of travelling through interstellar space. You climb in, blast into orbit, fly out of the solar system and keep going. Where do you end up, and what do you see along the way?The answer is: mostly nothing. Space is astonishingly, mind-blowingly empty. As you travel through the void between galaxies your spaceship encounters nothing more exciting than the odd hydrogen molecule. But when i...

Every year, readers send in thousands of questions to New Scientist, the world's best-selling science weekly, in the hope that the answers to them will be given in the 'Last Word' column - regularly voted the most popular section of the magazine.Does Anything Eat Wasps? is a collection of the best that have appeared, including: Why can't we eat green potatoes? Why do airliners suddenly plummet? Does a compass work in space? Why do all the local dogs howl at emerge...

The ancient Greeks called it Gaia; the Romans Terra. We know it simply as Earth, the planet we call home. And what a planet it is.Formed around 4.6 billion years ago from the debris of the big bang and long-dead stars, at first it was nothing special, but somehow it evolved to become the most amazing place in the known Universe. The only living planet we know of, it also has a very unusual moon, a remarkably dynamic surface, a complex atmosphere and a deeply myster...

How did it all begin? Where is it all going?A little over a century ago, a young Albert Einstein presented his general theory of relativity to the world and utterly transformed our understanding of the universe. His theory changed the way we think about space and time, revealed how our universe has been expanding from a hot dense state called the big bang and predicted black holes.WHERE THE UNIVERSE CAME FROM is a 13.8-billiion-year journey ...

Why Don't Penguins' Feet Freeze? is the latest compilation of readers' answers to the questions in the 'Last Word' column of New Scientist, the world's best-selling science weekly. Following the phenomenal success of Does Anything Eat Wasps? - the Christmas 2005 surprise bestseller - this new collection includes recent answers never before published in book form, and also old favourites from the column's early days.Yet again, many seemingly simple questio...

Think of a number between one and ten.No, hang on, let's make this interesting. Between zero and infinity. Even if you stick to the whole numbers, there are a lot to choose from - an infinite number in fact. Throw in decimal fractions and infinity suddenly gets an awful lot bigger (is that even possible?) And then there are the negative numbers, the imaginary numbers, the irrational numbers like pi which never end. It literally never ends....

Where did we come from? Where are we going?Homo sapiens is the most successful, the most widespread and the most influential species ever to walk the Earth. In the blink of an evolutionary eye we have spread around the globe, taken control of Earth's biological and mineral resources, transformed the environment, discovered the secrets of the universe and travelled into space.Yet just 7 million years ago, we were just another species of great ape mak...

Think of a number between one and ten.No, hang on, let's make this interesting. Between zero and infinity. Even if you stick to the whole numbers, there are a lot to choose from - an infinite number in fact. Throw in decimal fractions and infinity suddenly gets an awful lot bigger (is that even possible?) And then there are the negative numbers, the imaginary numbers, the irrational numbers like pi which never end. It literally never ends....

What is this strange mental world that seems so essential to being human?The conscious mind brings together sensations, perceptions, thoughts and memories to generate the seamless movie of a person's life. It makes us aware of the world around us and our own self. How all this emerges from a kilogram of brain cells is one of the greatest unanswered questions.In Your Conscious Mind leading brain scientists and New Scientist take you on a jou...