For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could ...

When engineers at a control center in Turin, Italy, sent a faint radio signal into space, they set off a world-first ...

An international team of researchers has found that radio wave measurements from the moon could advance scientific understanding ...

The mysterious “Wow!” signal from deep space, caused by a yet unknown astronomical event, was much stronger than previously thought, a new study suggests.“Wow!” is the name given to the enigmatic and ...

Solar flares are colossal explosions in the sun's atmosphere that hurl out bursts of powerful radiation. These events are ...

On September 14, 2015, a signal arrived on Earth, carrying information about a pair of remote black holes that had spiraled ...

Gravitational-wave astronomy has exploded since 2015, capturing hundreds of black hole and neutron star collisions. With ever ...

On a remote beach in Northern California, my Pixel 10 connected to satellites 200 miles overhead, allowing me to make video ...

The first-ever detection of gravitational waves was made 10 years ago today (Sept. 14). In celebration, Space.com takes you ...

Electromagnetic Spectrum (EMS) operations in contested environments require battlefield assumptions based on mission dependent factors and complex ...

A massive ejection from the sun has unleashed multiple solar storms in Earth's magnetic field, potentially messing with ...

A massive earthquake and subsequent tsunami off Russia in late July tested an experimental detection system that had deployed ...