Last summer, astronomer Calvin Leung was excited to analyze data from a newly built radio telescope. His goal was to pinpoint ...

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

If extraterrestrial civilizations exist with technology similar to ours, could they detect Earth? A team of SETI researchers ...

If an extraterrestrial civilization existed with Earth-like technology, would they be able to detect Earth and evidence of humanity? If so, what ...

Supermassive black holes are seen as sources of wanton cosmic destruction, but there may be more to their powerful influence ...

SETI scientists suggest that extraterrestrial civilizations could detect Earth through 'technosignatures' like planetary ...

Earth's pollution and technology might reveal our presence to aliens. From radio signals to city lights, scientists study ...