In the case of the planets, Neptune's migration created a gravitational well for resonant objects like Pluto. Neptune keeps Pluto in check despite its strange orbit. For 20 years of 248-year orbit, ...

Old rocket parts and decommissioned satellites are whizzing around in low Earth orbit, where they risk colliding with the ...

Last February, a remote research station in the Canadian High Arctic captured a striking image of the night sky. It showed a dense network of bright streaks against the blackness. Those streaks were ...

A trio of secretive Russian satellites launched earlier this year has released a mysterious object into orbit, sparking interest among space trackers and analysts. In March, the satellites appeared to ...

Beyond the race for scientific, commercial and military purposes, there is another space race of a more curious sort. A race to be the first to send various objects up there. But why? The space temple ...

WASHINGTON — Defense technology company Anduril and space transportation startup Impulse Space are preparing to demonstrate one of the most complex operations in space: autonomous rendezvous and ...