"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the ...

A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...

NASA still views the moon as a stepping stone to Mars, even though Elon Musk has dismissed Earth's nearest neighbor as "a ...

Proponents of going to Mars see peril and opportunity in Elon Musk's close relationship with Trump. Experts say just getting ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

What makes NASA’s InSight different from past Mars missions? Instead of exploring the surface, this lander is studying the planet’s interior, searching for seismic activity (marsquakes) and measuring ...