While the Sun is the centre of our solar system, it only makes up about 99.8 per cent of the mass of the entire solar system. So, the Sun's centre is not exactly located on the barycentre of the ...

"Instead, everything orbits the solar system center of mass," James O'Donoghue ... and moon will move over the next three years, in 3D. (The distance between Earth and the moon is not to scale.) ...

Identifying asteroids on a potential collision course with Earth could be made easier thanks to an advancement in how to ...