Earth's orbiting satellites are commonly regarded as if they were suspended in mid-air. It is a fact that they actually ...

One solar storm could trigger a catastrophic collision in orbit ...

Many people think satellites are “hovering” in one place, but that’s not true. They are in a state called free-fall, which means they are falling toward Earth but never land because they are moving ...

More objects are being launched into space than ever, and most are headed for low Earth orbit. This region of space has become increasingly crowded with launches from SpaceX and others that have ...

We’re all familiar with the sun’s daily motion in the sky. It rises in the east, gets higher in the sky until circa noon, then begins its hours-long descent to set on the western horizon. You may also ...

Far from the bright glare of the Moon, a much smaller companion has been quietly keeping pace with Earth, looping around the Sun in a complex dance that only looks like a shared orbit from our vantage ...

Despite decades of warnings, governments and private companies have continued launching missions with little plan for what ...