The year’s top 10 science stories, chosen by scientists

Billionaires in space, an end-date for deforestation, facing up to racial bias in healthcare - we asked scientists to share the most important developments of 2021

Space made the headlines on many occasions in 2021: the landing of Nasa's Perseverance rover on Mars, the arrival of a rare meteorite in the UK, the launch of a mission to hit an asteroid, the discovery of almost 200 new planets beyond the solar system - all shared their moment of fame with the public. However, the most extensive coverage of space news was probably of the 11-minute flight to outside the edge of Earth's atmosphere made by William Shatner, AKA Captain James T Kirk of the USS Enterprise, in October 2021.