The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

A Stanford scientist says a new planetary model may explain why we have not found aliens yet, arguing that most small rocky ...

NASA addresses the release of UFO files and discusses the ongoing search for life on Mars. What are they hiding?

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

Mars Perseverance rover found hundreds of complex carbon signatures in Jezero Crater mudstones - compelling evidence, but not ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

Researchers from the University of Oxford have uncovered evidence that Mars once hosted enormous, Earth-like magmatic systems ...

In September 2025, NASA announced that its Perseverance rover had discovered a potential biosignature, which is a substance or structure that might have a biological origin. A new paper, published in ...

After more than five years of roaming the desolate and dusty landscapes of the Martian surface, NASA’s Perseverance rover has come across some of the most intriguing evidence yet of ancient microbial ...

God and aliens are having a moment. But what do Christianity and other faiths really teach about ETs?

Could Martian mudstones be holding evidence of ancient microbes? New findings strengthen the case that the Red Planet once ...