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

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium ...

When Christopher Columbus first came ashore in the Caribbean in 1492, he made first contact with what was, to him, an unfamiliar world. While his journey took place on ships rather than spacecraft, ...

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 ...

Enceladus is hardly an inviting place. It sits 1.5 billion kilometers from the Sun, covered by a thick frozen exterior. Yet ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The search for extraterrestrial life has evolved from philosophy to a serious scientific and ...

In the late 1950s, a small group of scientists began to search for alien life. Among them was geneticist Joshua Lederberg at Stanford, who in 1960 spoke at the First International Space Science ...

There might be alien life on a nearby moon, scientists say - Saturn’s companion Enceladus has long been a particularly promising place to find aliens – and now researchers say that extraterrestrial li ...

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, ...

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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 ...