Tiangong-1: China space lab’s return approaches
The defunct station is hurtling towards Earth but chances of it falling into your garden are slim.
Author Archives: BBC News - Science & Environment
Scientists explain the sound of knuckle cracking
What's behind the snapping sound when we crack our knuckles? Scientists have the answer.
Up close: The moment a cheetah joined a safari
Britton Hayes was on safari with his step uncle in Tanzania when a cheetah entered the vehicle.