According to the British Telegraph newspaper, researchers at NASA’s Goddard Space Flight Center have discovered that many planets are at an ideal temperature, only for a short period of time, which greatly reduces the chance of life emerging on them. .
The researchers noted that the number of worlds that could contain alien life has been greatly exaggerated, as experts had assumed before this study that the temperature on the planets had remained relatively constant.
Although some planets are located in the so-called “moderate zone”, which is defined as “habitable” at the present time, their previous history makes it impossible for life to exist on them. Because it was not in that area previously, according to experts at NASA.
Meanwhile, experts at NASA believe that between 29 and 74 percent of planets in the current habitable zone have never been there.
Even the Earth we live on, it took hundreds of millions of years for asteroids and meteorites to fall to Earth’s surface, bringing water and chemicals, before life could be launched on it.
(ٍسبوتنيك)
