Timing is everything these days. Our communications and GPS networks all depend on keeping careful track of the precise timing of signals—including accounting for the effects of relativity. The deeper ...

Our planet had a "second moon" for a hot minute in 2024. This gave space entrepreneurs a bright idea. Almost a year ago, the space science community watched as an asteroid entered Earth's orbit and ...

Almost a year ago, the space science community watched as an asteroid entered Earth's orbit and circled above our heads for almost two months before departing. Scientists usually track such asteroids ...