It's a question that has puzzled scientists for decades – if there are aliens out there, why haven't they visited Earth yet? Now, scientists believe they may have the answer to the so-called Fermi ...

Although there has been no evidence of aliens, a new study has revealed many advanced aliens could be sending communication signals across the cosmos. The research from the University of Nottingham is ...

The search for extraterrestrial intelligence (ETI) has long been a topic of fascination. However, a new study available on ...

An ominous spike in UFO sightings has captured America's imagination - but what state is the safest to live in if aliens decide to invade the earth? A new study has attempted to put the question to ...

The first time we find evidence of life on a planet orbiting another star (an exoplanet), it is probably going to be by analysing the gases in its atmosphere. With the number of known Earth-like ...

There are as many as 400 billion stars in the Milky Way galaxy alone, meaning there could be trillions of planets. As is evident from our solar system, the majority of these planets would be lifeless ...

Terminator star Arnold Schwarzenegger is the man we would choose to lead Earth if we were invaded by aliens, research has found. A study of 2,000 British adults revealed the top 20 celebrities and ...

This illustration shows a star behind a shattered comet. Researchers still don't know what's causing the erratic dimming in the light from KIC 8462852, dubbed "the most mysterious star in our galaxy." ...

MYSTERIOUS flashing lights visible among the stars may be signs of alien activity, scientists claim. Around 100 of the blinking red glow have been spotted by astronomers over the past 70 years and ...

Humans are not yet ready to make contact with intelligent aliens, a study suggests. Space psychologist Professor Gabriel de la Torre came to the conclusion after questioning 116 American, Italian and ...

Invasive animal species - such as the American mink - are a threat to protected areas, researchers have said (Professor Tim Blackburn / UCL) Most of the world’s protected areas are under threat from ...

Other solar systems could have large numbers of planets that are home to alien life, a new study has found. The research suggests that other parts of the universe could be host to numerous planets ...