As the number of satellites in Earth orbit increases, so too does the risk from space debris — and some experts warn certain orbits could already be getting dangerously crowded. The mass of ...

Location, location, location! Where a satellite orbits Earth is a major factor in how well it does its job. It takes a lot of different perspectives to collect data to help us understand how our ...

Polar orbits take the satellites over the Earth’s poles. The satellites travel very close to the Earth (as low as 200 km above sea level), so they must travel at very high speeds (nearly 8,000 m/s).

Galactic Energy, the Ceres-1 manufacturer and operator, announced in a statement that five satellites had been successfully inserted into preplanned orbits. Aboard the flight were four Yunyao-1 ...