Interstellar objects such as Comet 3I/ATLAS can be sent by alien civilizations to "sow" life on Earth. At the same time, it is almost impossible that for the entire time of Earth's existence the Earth ...

Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping ...

Researchers are considering the fact that there might be already the presence of very developed aliens civilizations which are out of reach of the humans. This theory is based on an assumption. The ...

The search for extraterrestrial intelligence (ETI) has long been a topic of fascination. However, a new study available on ...

In this scenario, our first contact with aliens would be tragic. We should look for "loud shouts in the night".

After searching 100,000 galaxies for signs of highly advanced extraterrestrial life, a team of scientists using observations from NASA's WISE orbiting observatory has found no evidence of advanced ...

Assuming our solar system’s newest interstellar object isn’t an alien mothership sent here to menace us, humankind still hasn’t spotted any signs of extraterrestrial life, let alone intelligence — ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

There are many attempts to get humanity to be found by extraterrestrial civilization, such as the In considering how many hostile extraterrestrial civilizations are in the galaxy, Alberto Caballero, ...

golden record that can decipher data with hints of mathematics and chemistry. It is hoped that it will become a kind of common language between the unknown extraterrestrial civilizations. A novel ...