ourselves to the Milky Way galaxy, which is the galaxy that contains the solar system, it is said that there are 40 billion planets located in the habitable zone where life is likely to be born. Given ...

The Search for Extraterrestrial Intelligence (SETI) is a dream of humanity, but advanced extraterrestrial civilizations do not necessarily communicate in the same way as humans. A paper published on ...

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 ...

If alien civilizations rise and fall, they may leave behind artifacts long after they are gone. From abandoned megastructures ...

Enrico Fermi’s decades-old question—“Where is everybody?”—remains one of science’s most haunting mysteries. If the universe is teeming with stars and planets, and life has evolved on Earth, why hasn’t ...

A NASA-backed study reveals that alien civilizations could detect human signals sent to spacecraft. Radio transmissions aimed at Mars rovers and orbiters aren't fully contained, creating a 'spillover' ...

Whether or not aliens exist, the SETI program has never stopped believing. Yet today, radio telescopes are no longer seen as the best way to ...

In his classic science fiction novel Contact, Carl Sagan remarked, “The universe is a pretty big place. If it's just us, seems like an awful waste of space.” Physicist Enrico Fermi is credited with ...

New theoretical models have strengthened the case that immense, energy-harvesting structures orbiting their host stars could ...