Alien life may one day be found not from radio signals beamed across the cosmos but from an all-too-familiar side-effect of civilisation: pollution. It's the Earth's atmosphere that he's usually ...

Scientists say they have found 50 galaxies that may contain intelligent alien races. These galaxies were found to be emitting ‘unusually high’ levels of radiation - possibly indicating ‘the presence ...

Researchers have detected signals from tens of light years away that suggest a planet outside our solar system could support life. Analysing a planet’s magnetic field and the radio waves it gives off ...

The first experience that an alien civilization might have of us may not be telecommunications – no ETs watching early The Simpsons episodes. Astronomers have found that up to 200 light-years away, ...

ET, are you there? The Green Bank Telescope is one of many radio telescopes being used by SETI to detect alien radio signals Jarek Tuszynski / Wikimedia Commons Alien civilisations are either ...

At the end of last year, researchers using Nasa’s Swift space observatory launched an investigation to study a group of mysterious radio sources first detected nearly six decades ago. For four months, ...

A sequence of 14 of the 15 detected radio pulses. The streaks are the bursts appearing at different times and different energies Breakthrough Listen ­– a scientific programme searching for signs of ...

Are we alone in the universe? It’s a question that fascinates scientists and the public alike. In science, the focus tends to be on our search for life elsewhere. The idea that we might be watched by ...