Three years on, the Lego Ideas Tree House is still a stunning set.
Four new studies confirm that NASA's DART mission, which crashed a rocket into the asteroid Dimorphos, changed the asteroid's trajectory and could potentially save Earth one day, given enough time to prepare.
For years, scientists have known there was something hidden above the entrance to the Great Pyramid. Now, they've finally revealed it.
A higher lactate threshold may be beneficial during endurance sports, research suggests.