Reptilian-mammal fossil changes the timeline of supercontinent breakup
It was previously thought that by the end of the Jurassic, about 145 million years ago, the supercontinent of Pangaea had split into Laurasia & Gondwana
Russia & US will cooperate to build moon’s first space station
Part of a long-term project to send humans to Mars, the NASA-led programme will see the two countries working to create a crewed spaceport in lunar orbit
Computer solves a major time travel problem
The ‘grandfather paradox’ of time travel has been puzzling scientists for years
