On January 2, 2019 at 9:26pm EST, China's Chang’E-4 probe did what no human or machine has ever done before, and landed on ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

Director Steven Spielberg claimed aliens have already visited planet Earth – and now scientists said he may be on the money, ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...

Harvard astrophysicist Avi Loeb has floated the provocative idea that humans might themselves be alien‑made 'autonomous probes,' built through advanced synthetic biology rather than evolving entirely ...

A NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to rule them out. From misidentified rocket boosters to blurry moon maps, it ...

There is no chance in hell our species will be able to reach another Earth-like planet in the Universe in the foreseeable future, so the only way we can get a sense of the habitability of such places ...