Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

If alien life exists, its absence from our instruments may have several very different explanations. The longer the silence continues, the more interesting the mystery becomes.

Some scientists believe the sheer number of stars, planets and potentially habitable environments in space makes ...

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 ...

For years, scientists across the world have searched for the signs of life beyond our home planet in two main ways. They have either looked for signs of biology on other worlds, known as biosignatures ...

Uncover the Deep Ocean's Hidden Wonders! Explore hydrothermal vents, abyssal plains, and alien life thriving in Earth's ...

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Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

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