Celebrities may soon follow Katy Perry's lead, with excitement and skepticism surrounding their upcoming space trips.

Slate Auto, an electric vehicle startup backed by Amazon CEO Jeff Bezos, unveiled its inaugural truck the company says starts ...

Imagine watching a rocket soar into the night sky, flames licking the darkness, carrying not just astronauts but the hopes ...

(Saul Loeb/Agence France-Presse/Getty Images) Elon Musk, wearing a suit and dark blue tie, just arrived to applause from people seated in the gallery who recognized him. He appears to be ...