Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Scientists are refining galactic motion models to predict whether ... regions in the past adds a new dimension to our ...

In late 2017, a mysterious object tore through our solar system at breakneck speed ... first wave of ISO-hunting missions is already in motion: NASA's mission concept is called Bridge and the ...

A new planet like Star Wars' Tatooine detected outside of our solar system may orbit two failed ... published in the journal Science Advances, that the motion of the brown dwarfs are changing ...