Space2021 in review: Space tourism begins – for billionaires, anyway A flurry of short flights aboard privately funded craft saw space tourism begin with a bang for billionaires in 2021. Perhaps by the end of the decade, mere millionaires will be able to join them News
SpaceLost in Space-Time newsletter: Will a twisted universe save cosmology? A forgotten idea of Albert Einstein’s might be the saviour of cosmology, plus the great man’s (vain) quest to undermine quantum weirdness and the question of why the universe looks “just right” for our existence News