When astronomers detected the first long-predicted gravitational waves in 2015, it opened a whole new window into the universe. Before that, astronomy depended on observations of light in all its ...

The car, launched in 2018 on a SpaceX rocket’s upper stage, is one of many human-made objects in deep space that could ...

I was completely thrown for a loop. I thought I was hallucinating for a second,’ a Jewish student enrolled in the class tells ...