The Earth may be crawling with undiscovered creatures with a different biochemistry to life as we know it.
From alien life to human spaceflight, 2020 may deliver some exciting news.
Scientists can't expect the unexpected if they're not open-minded about how their theories might be wrong.
New research shows how rock features that look like fossilised microbes can form without life.
Humans evolved through a series of highly unlikely events – so finding another intelligence like us would be like winning the lottery many times over.
Musk's plans have potentially dire consequences for alien life, astronauts and the environment.
K2-18 b is now the exoplanet most likely to be habitable.
NASA's Europa Clipper mission just got the green light - here's what it could achieve.
Listen up, conspiracy theorists – it is virtually impossible that there could be alien visitors on Earth.
As more than a million people have indicated plans to partake in a citizen 'raid' on the famed Area 51 to 'see them aliens,' a scholar on the search for extraterrestrial life weighs in on the hype.
Rovers including 'Rosalind Franklin' will pick up where Opportunity left off – trying to answer the question of whether there is, or ever has been, life on Mars.
We will never see 'Oumuamua again, and we may never know exactly what it is. But with the right kind of media coverage it could inspire some kids to take up a career in science.
Studies from our own planet shed light on whether there could be life in a subglacial lake on Mars.
Life could have evolved on exoplanets Kepler-452b and Kepler-62e, according to a new study.
Following NASA's latest discovery of organic matter on the red planet, new findings in a salt lake in California could point to where to look for alien life.
We could find evidence of life on Europa within a couple of decades.
Using AI to search for ET might help us find things we couldn't even imagine we should look for, but to succeed we also have think critically about how we create and use that technology.
New research may help us to look for messages from alien civilisations.
If we find microbes on Mars, it will be difficult to exclude the possibility that we have accidentally brought them there from Earth.
Scientists looking for signs of alien life from the mystery object passing through our Solar system say they've found nothing "so far".