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Remembering the oil-drop experiment
In their memoirs, Robert Millikan and Harvey Fletcher describe what happened during the months leading up to their now-famous measurements on charged droplets. But intriguing differences in the accounts make it unclear just who made the key contributions

Warm spring ‘affecting wildlife’
A warm spring has brought about the early arrival of some UK wildlife, the first results of this year’s Springwatch survey suggest.

NASA cancels science flight, ditches international partners
A 12-year project to build a billion-dollar particle-physics lab in space is grounded unless someone comes up with at least $380 million.

‘Living plugs’ smooth ant journey
Army ants have devised a remarkable way to smooth a bumpy journey - by plugging potholes with their bodies.

Obituaries: Alvin Martin Weinberg

Captive shark had ‘virgin birth’
A hammerhead shark kept at a US zoo produced a pup without having had sex, scientists confirm.

Captive shark had ‘virgin birth’
A hammerhead shark kept at a US zoo produced a pup without having had sex, scientists confirm.

In Focus: Ten Years Later, AIDS Vaccine Search Continues
Science gets closer, but a fully effective vaccine remains elusive
JR Minkel

Ask the Experts: Does the length of a baseball player’s arm affect the distance of his throw? If so, how?

In Focus: 10 Animals That May Go Extinct in the Next 10 Years
The Dodo may soon have some august company
Coco Ballantyne