Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

Scientists used the 100-metre Green Bank Telescope to look for alien signals but detected no radio signals from 3I/ATLAS.

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...

Researchers used the Green Bank Telescope to study the interstellar comet and found that it exhibits typical cometary behavior, with no unusual features detected ...

Harvard physicist Avi Loeb challenges NASA, suggesting the iron-rich composition of interstellar object 3I/ATLAS indicates ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

The cosmos is typically a predictable dance of gravity and orbits, but occasionally, a visitor crashes the party with such ...

Mars. From forming black holes to phantom dark energy, discover the cosmic mysteries astronomers uncovered last year.

If nonliving materials can produce rich, organized mixtures of organic molecules, then the traditional signs we use to ...