The belief in aliens is still a topic that many in the scientific community are waiting to see real evidence.
This wait is not over yet. Scientists at Cornell University in the United States say that in about 1,500 years, we may receive contact from aliens.
The researchers explained the details at the astronomy meeting of the American Astronomical Society in San Diego last week. They used two theories to calculate how long it would take for Earth to receive contact from our fellow universe members.
Both theories help explain why the wait could be longer than a thousand years.
The first theory is called the Fermi Paradox, which states that there are billions of stars that are similar to Earth in many ways, but there is no contact that we, as humans, can detect.
The contradiction that the theory tries to point out is that there is a high possibility that there should be contact from other stars to Earth. But that has not happened yet.
Scientists say that our galaxy is full of stars and is still considered a small galaxy compared to other galaxies in the vast universe.
Another theory is called the Mediocrity Principle, which dates back to Copernicus in the 16th century. It states that Earth’s physical features are not particularly special, and therefore unlikely to be easily noticed by aliens.