The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything about it that might align with a hypothetical alien spacecraft.

Every once in a while, you may look up toward the sun and see strange bright lights on either side of it. Or perhaps you'll ...

Breaking space news, the latest updates on rocket launches, skywatching events and more!

In this latest instalment of Future Chronicles, an imagined history of future inventions, Rowan Hooper explores the advances ...

The new book "Gemini and Mercury Remastered" features iconic images from the earliest days of human space exploration ...

NASA is tracking a mysterious, fast-moving object entering our solar system, raising questions about whether it's just a ...