Two major alien-life announcements in 2025 generated enormous excitement, but most astrobiologists remained unconvinced. Only 6.6% of surveyed experts thought possible biological molecules on K2-18b ...

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium gas escaping from the atmosphere of LHS 1140b propelled this exoplanet from ...

The leading UFO expert Nick Pope reportedly claimed before his death that the government was deliberately keeping information ...

The “post-detection protocols” for announcing the discovery and existence of alien life have just had their first major update in 16 years, though the all-important "no reply" rule remains in place.

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of biology because they are often produced by living microbes. However, ...

Saturn’s moon Enceladus is one of the places scientists say alien life could be hiding in plain sight. NASA/JPL-Caltech/Space Science Institute Space agencies might have already captured evidence of ...