SpaceMagnetic meteorites narrow down solar system’s birthdate Magnetic fields in 4-billion-year-old rocks suggest the dust and gas cloud that spawned the solar system had gone by 3.8 million years after the sun formed News
SpaceKatherine Johnson: The brilliant woman who got the US into space In deeply divided 1950s America, how did a black woman become the one person astronauts would trust to get them into orbit? Discover Katherine Johnson's amazing story Features