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Alien Diet Could Be Deadly For Humans, New Research Makes Shocking Claim About Life Beyond Earth

A new scientific study suggests alien life may survive on radioactive energy sources in cold and dark worlds, raising serious concerns that such forms of life could be extremely dangerous for humans.

Last Updated : Monday, 15 December 2025
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New Delhi: As space agencies and private companies plan human settlements beyond Earth, a new research study has raised fresh concerns about alien life. Scientists now believe that extraterrestrial organisms may survive on energy sources that are deadly for humans. According to the study, alien life may not need Earth-like conditions to exist. Instead, it could thrive in cold, dark environments using radiation-based energy. This discovery could change how scientists view life beyond Earth. It also raises questions about the risks such life may pose to humans.

What Could Aliens Be Using As Food?

Researchers say alien organisms may depend on high-energy particles known as galactic cosmic rays. These rays travel through space and can penetrate planets and moons. When they interact with water or ice, they release radiation. This radiation triggers chemical reactions that break molecules apart. The process is called radiolysis. The byproducts created during radiolysis can act as fuel for living organisms. Scientists believe alien life could survive by using this energy source.

Why Radiolysis Is Dangerous For Humans

While radiolysis may support alien life, it is extremely harmful to humans. Radiation released during this process can damage human cells. Prolonged exposure can lead to serious health problems and even death. Experts warn that environments supporting such life forms would be unsafe for human settlement. Dr Atri, one of the researchers, said radiolysis is destructive for humans. He added that radiation-based ecosystems could be lethal for people.

Can Life Exist Without Earth Like Conditions?

The study challenges the long-held belief that life needs sunlight, warmth, and oxygen. Scientists say life may exist in places with no sunlight at all. Cosmic radiation could provide enough energy to sustain living organisms. This means life may exist deep below the surface of planets or moons. Such environments would be completely dark and extremely cold. Yet, they could still support alien ecosystems.

Focus On Europa And Enceladus

Researchers studied Mars and two moons of Jupiter and Saturn, Europa and Enceladus. These moons are covered with ice and are believed to have water beneath their surfaces. Scientists observed the production of electrons in these environments. Electrons play a key role in energy generation for living organisms. The findings suggest these moons could support radiation-based life forms. This has increased scientific interest in these distant worlds.

What Earth’s Extreme Life Forms Reveal

Scientists compared alien life possibilities with extremophiles found on Earth. Extremophiles are organisms that survive in extreme environments. Some of them feed on substances that are deadly for humans. One example is a bacterium called Candidatus Desulforudis audaxviator. It survives by using energy from the radioactive decay of uranium. Such organisms prove that life can adapt to harsh conditions. This strengthens the theory of radiation-based alien life.

Why This Research Raises Alarm

The findings suggest that alien life, if encountered, may not be friendly or harmless. Environments that support such organisms could be fatal for humans. This poses serious challenges for future space missions and colonization plans. Scientists say extreme caution will be needed while exploring such regions. The study highlights that the search for life must also consider human safety. As space exploration advances, understanding these risks becomes crucial.