Space Astrophile: Exoplanetary bedfellows make odd couple Astrophile is our weekly column on curious cosmic objects, from the solar system to the far reaches of the multiverse 51¶¯Âþ
Earth Rio Summit? More like the absolute nadir SOME things defy parody. Leila Lopes – Miss Universe – came to last week's Earth Summit in Rio de Janeiro to help celebrate World Desertification Day. Thus a treaty to hold back the deserts – one of the signature outcomes of the first Earth Summit 20 years ago, agreed at a time when world leaders … Opinion
Chile's icy nazarenos line up on glacial plains See more: To see the image this article refers to, keep checking Picture of the Day on our news blog Short Sharp Science LIKE a procession of hooded sinners, these penitentes stand guard on Chile's Chajnantor plain. They get their name from the pointed headgear of the nazarenos, penitents who take part in Holy Week … Regulars
Space What kind of bang was the big bang? There's trouble at the start of time: the theory of cosmic inflation has got way out of control. Can quantum theory and holograms tame it? Features
Plotting the body's electricity grid See more: An illustrated version of this article will be published within the next two weeks on our CultureLab books and arts blog From fainting goats to paralysis, physiologist Frances Ashcroft explains how bioelectricity controls our every move, in The Spark of Life ELECTRICITY controls our bodies. Every impulse, from those that keep our hearts … CultureLab
Enigma Number 1704 Joe's triangle Joe drew a right-angled triangle on an A6 file card. He asked Penny to cut it out and then cut it in two to make two right-angled triangles. Then he asked her to cut each triangle in two to make four right-angled triangles in total. Now Joe's triangle was very special. Penny found … Regulars
Feedback: Elephant obsessions A pachyderm peculiar FEEDBACK has been invaded by elephants. The proximate cause is our plea for help in calculating how many actual elephants would be required to achieve the 8000 elephant-standing-on-a-Mini-Cooper units of pressure used by UK newspaper The Daily Telegraph . Should we take into account Newton's law of gravity and the reduced weight … Regulars