A NASA scientist has revealed that she's absolutely certain there's alien life out there.
The expert told The U.S. Sun about her alien theory and where she thinks life is hiding.
Dr. Michelle Thaller works as a scientist at Nasa's Goddard Space Flight Center and has decades of experience.
She told us: "I definitely think we’ll find life on another planet.
"I think that in our own Solar System, we’re quite close to it but once again we don’t have that 100 percent thing.
"On Mars, we see chemistry that on Earth if it were here we would say is due to life.
"But the question is, how well do we understand Mars and are we being fooled by something?"
Dr. Thaller spoke to The U.S. Sun at , an exhibition at Artechouse in New York that aims to immerse the public in a deep space exploration experience.
The exhibit was created in collaboration with Nasa, and features newly analyzed galactical data from the James Webb Space Telescope.
Artechouse and Nasa collaborated extensively to present this data as an artistic expression of the US space agency's breathtaking discoveries.
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The JWST is a $10billion device that could help humans find habitable planets in distant galaxies.
However, Dr. Thaller thinks life could be much closer to home than that.
She continued: "We see possible signs of life in the atmosphere of Venus.
"Possibly underneath the ice in the icy moons of Jupiter and Saturn.
"The Solar System may be teaming with simple life, microbial life.
"We just have to get that 100 percent certainty to say that we found it and we don’t have that yet."
Of all those options, Dr. Thaller is excited about Venus' potential to harbor life.
The hostile and dry planet would kill a human who landed there instantly, and yet several studies suggest microbial life could live in its clouds.
Dr. Thaller said: "I never expected Venus. Venus is now one where we see something in the atmosphere that looks very much like it could be produced by bacteria."
The expert is certain we will find life and thinks it's just a matter of when.
Speaking to an audience at the event, she said: "I think it’s only a matter of time until we have proof that it’s in the Solar System.
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"But that’s the thing, we’re waiting until there’s nothing else it could possibly be because can you imagine the kind of trouble we’d get in."
Adding: "We don’t have absolute proof yet. Do I think there’s life out there? Absolutely."