Space Mars 500 crew share thoughts on their mission The crew back on terra firma An all-male international crew of six has emerged from 520 days of confinement on a mock mission to Mars. They have hugged their families and been greeted by Moscow's first snow of winter. Here, Alexey Sitev and his crew tell New Scientist about life inside, how the experience has … News
Health The dope on mental enhancement Yet another survey has revealed surprisingly large numbers of people using drugs to boost their mental powers. What should be done? Opinion
Earth Just how much meat can eco-citizens eat? Many of us love meat – but eating less could help save the planet Meat is bad: bad for you, bad for the environment. At least, that's the usual argument. Each year, the doors to the UN climate negotiations, which kick off again in Durban, South Africa, on 28 November, are assailed by demonstrators brandishing … News
View a colossal telescopic eye into the cosmic past See more: To see the image this article refers to, keep checking Picture of the Day on our news blog Short Sharp Science AS SOON as the sun sets over the Atacama desert in Chile the world's most advanced visible-light observatory begins to catch rays that have taken billions of years to travel across the … Regulars
Physics Nothingness: Zero, the number they tried to ban Every schoolchild knows the concept of zero – so why did it take so long to catch on? Richard Webb follows its convoluted path from heresy to common sense Features
Tim Minchin uses comedy to open a door to rationalism With his heavy eyeliner and quirky act, comedian and musician Tim Minchin considers himself a "gateway drug" to science, philosophy and rationalism Your comedy is often about scepticism and rationalism – why? Any understanding of science I have is reverse-engineered from my suspicion about belief systems: I don't think this medicine works, and how can … CultureLab
Enigma Number 1673 Just one By placing the digits 1 to 9 in the boxes of a 3×3 grid, you create three three-figure numbers across the rows and three down the columns. Choose the positions of the digits so that, of those six three-figure numbers, just one is divisible by 2, just one is divisible by 3, just … Regulars
Feedback: Plight of the imprisoned executives Plight of the imprisoned executives CAREER transitions can be difficult, especially when they are involuntary. After reading about recent well-deserved status changes for some former high-level executives, Feedback can see the need for Executive Prison Consultants (EPC). An error message flashed up on Abbi Connor's Lenovo laptop saying: "The Network Connect session will time out … Regulars