Hidden deep within southern Siberia lies one of the most mysterious places on Earth. At first glance, Lake Baikal looks like ...

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

Alien probes could already be hiding somewhere in our Solar System – and our current surveys are nowhere near good enough to rule them out, according to a NASA‑linked study presented this month by ...