Finding indicates extinct forms of mosquitoes coexisted with modern ones during the dinosaur era

Short-lived flashes were first seen in a sky survey before launch of Sputnik satellite

Researchers find people who lay face down and covered their heads and necks, escaped serious injuries

Surgeons call the case ‘alarming’ due to the difficulty in enforcing the ban on magnets

Findings may lead to bridging critical treatment gap for Alzheimer’s patients, scientists say

Attack could be due to sharks’ previously unreported ‘begging’ behaviour, scientists say