Only 1 type of alien life-form could make it to Earth's doorstep: Harvard expert

A renowned astrophysicist is calling foul on reports of alien sightings in Earth's atmosphere, arguing that biological creatures would be unable to survive a journey to our planet. "It would take about a billion years to cross from one side of the Milky Way galaxy to the other," Avi Loeb, a Harvard astrophysicist, said during an appearance on GB News this week. "Given that, I don't think any spacecraft that would arrive to us from another star would carry biological creatures." Loeb's comments come amid increased reports of UFO sightings in recent years, with videos and pictures of supposed alien craft going viral across the internet. It also comes after NASA created a new position aimed at overseeing research on UFOs after a 2022 study by the agency determined that such sightings were unlikely to be caused by extraterrestrial life.