Life Women abused as children likelier to bear autistic child Women abused in childhood are more likely to have children with autism, a new epidemiological study suggests. The finding adds a disturbing new dimension to the heated debate over the condition's underlying causes. Andrea Roberts of the Harvard School of Public Health suspected that there might be a link between childhood abuse and having an … 51¶¯Âþ
Space Nobel physicist: Give people a one-way ticket to Mars Gerard 't Hooft explains why he is an ambassador for the Mars One project, and whether he fancies a reality-TV-funded move to the Red Planet himself Opinion
Technology Robo-surgeon da Vinci faces lawsuits Robot surgery can mean less blood loss, smaller scars and quicker recovery time, but what if there are complications? 51¶¯Âþ
Cherry-blossom volcano spews forth lava and lightning See more: To see the image this article refers to, keep checking Picture of the Day on our news blog Short Sharp Science IT LOOKS like the end of the world – in fact it's only the end of Japan. This is Sakurajima volcano, on the southern tip of Kyushu, the most southerly of Japan's … Regulars
Life Stupidity: What makes people do dumb things Human intelligence varies astonishingly. Why didn’t evolution make us all geniuses, and why do even those with high IQ act like fools? Features
Enigma Number 1742 Chip-chop I have a seven-figure number that uses seven consecutive digits in some order. Starting at the left and deleting a digit leaves a six-digit number, then deleting the right-end digit leaves a five-digit number, then deleting the left-hand end digit leaves a four-digit number, and so on, alternating sides until a single digit is … Regulars
Feedback: Which part of 'partial zero' don't we get? Caption Which part of "partial zero" don't we understand? READER John Cleveland is puzzled. His new Subaru car proudly declares itself to be a "Partial Zero Emission Vehicle" (PZEV). "Not being a great mathematician," he writes, "I've spent way too much time sussing out what quantity of greenhouse gases might be in a part of … Regulars