Visualization of the Sun-Earth Lagrange points. Orbital mechanics is a fun subject, as it involves a lot of seemingly empty space that’s nevertheless full of very real forces, all of which must be ...

Humanity’s need to track the Moon’s changing phases and motions is ancient. Mammoth hunters used the Moon as a timekeeper, carving crescent-shaped notches into bone and tusk. Sumerian astronomers ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles within this cloud collided and clumped together, driven by gravity and ...

Earth's cosmic neighbourhood is more dynamic than imagined, hosting temporary 'mini-moons' captured by gravity and ...