The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

Sunita Williams, retired astronaut, reveals surprising sights from space, including numerous satellites and rare lightning ...

Blue Origin sent six more people to the edge of space on its New Shepard rocket on Thursday morning.

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction.

Sunita Williams made a candid appearance on entrepreneur Raj Shamani’s podcast. During the conversation, she spoke about her life beyond Earth, reflected on her Indian roots and more.