It is a common sight at public parks, schools and housing complexes: waste scattered on the grass just a few feet away from ...

Today's Mars rovers typically drive at about 500 to 1,000 feet per hour — roughly the length of one to three football fields ...

A new fleet of robots delivering food in the Rosslyn-Ballston corridor is turning heads and sparking some community debate. Since they began carrying their first Uber Eats orders last week, the ...