University of Washington researchers have published a 5-billion-year computational simulation of Earth without life, ...

For thousands of years, humanity has looked up at the stars asking the same question. Are we alone? Then one day, it finally happens. Scientists announce they have found convincing evidence that life ...

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 ...

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, ...

With next-generation telescopes, tiny space probes, and more, scientists aim to search for life beyond our solar system—and ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known exoplanets that may have the right conditions to support life. Using new ...

Scientists have quietly rewritten the global rulebook for what happens if alien intelligence is ever detected, updating long‑standing 'first contact' plans in 2026 to prevent panic and confusion in an ...

On planet Earth, our 'secondary atmosphere' has been with us for billions of years and its chemical balance reflects the ...