A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer.

The skepticism and debate around the question of "are we alone in the universe" makes the field of astrobiology more cautious ...

NASA’s clean-rooms are meant to be the surgical suites of spaceflight—over-pressurised, HEPA-filtered boxes where not even a stray eyelash should survive. Yet ...

Yucatan's Chicxulub crater marks one of our universe's most momentous historical events: when an asteroid strike killed 75% ...

A type of lichen was able to survive extreme UV radiation in the lab, suggesting that ozone protection might not be required for life on exoplanets.

Two men have been sentenced for their roles in the deaths of 53 migrants being smuggled inside a tractor trailer in southwest ...

In this week’s episode of Space Minds David Ariosto sits down Nathalie Cabrol, Director of the Carl Sagan Center at the SETI Institute who explains why the Red Planet may hold answers about ...

Stories about the existence of aliens, and our chances of detecting them, tend to be positive. We are told that we might ...

Former NASA official Joseph Gutheinz dismisses the notion of alien visitors, urging people to focus on scientific evidence rather than speculation. He argues that vast astronomical distances and the ...

The search for extraterrestrial life is not held to a higher standard of scientific rigour, but it is constrained by an inability to independently detect and attribute multiple lines of evidence.

The search for extraterrestrial life is not held to a higher standard of scientific rigour, but it is constrained by an inability to independently detect and attribute multiple lines of evidence.

Astrobiologists thought they saw indications of water vapour. Claims of alien life have popped up throughout the years. Picture: iStock Upon revision, this later turned out to be methane.