If 3I/ATLAS isn’t an alien probe, its discovery may be even more important. Scientists detected no radio signals from the ...

Voyager 1 is on a journey that will outlast civilizations, outlive the Sun’s familiar neighborhood, and eventually drift into ...

Scientists may have discovered how extraterrestrial civilizations could actually detect and find Earth.

A small space telescope with the eyes of a giant will spend the next year studying the planets around distant stars, and the University of Arizona will serve as mission control. The refrigerator-sized ...

A new analysis of NASA's Deep Space Network finds Earth's strongest radio beams align with planetary line‑ups, boosting the chance alien civilisations could detect us and suggesting where and when we ...