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
SpaceWhen computers were human: The black women behind NASA’s success In the mid-20th century, when discrimination and segregation were rife, a number of black women were making their mark at NASA. Here are just a few Features