In a world of wild talk and fake news, help us stand up for the facts.

The four passengers on the Polaris Dawn mission that launched from Kennedy Space Center early Tuesday reached their goal of flying farther away from Earth than anyone since the last Apollo mission.

Add Yahoo as a preferred source to see more of our stories on Google. The ongoing COVID-19 crisis has had a number of unexpected impacts on global economic activity — most of them negative. But the ...

Eclipses inspire awe and bring people together to observe a stunning celestial phenomenon, but these cosmic events also enable scientists to unravel mysteries of the solar system. NASA will launch ...