So far, scientists have managed to identify a series of planets whose position might be suitable for them to develop conditions friendly for sustaining life. However, they rarely thought of the situation the other way around. Recently, a group of scientists from Queens University in Belfast found nine exoplanets which are ideally positioned to observe Earth and its transits.
Researchers made a series of exciting discoveries regarding both distant exoplanets, and those present in our solar system. During their searchers, they managed to spot at least nine exoplanets which might be able to spy upon Earth just like we do with them. However, they made some other findings regarding several other nearby planets.
They found several spots where some planets in our solar system, as well as Earth, can be studied just right when they pass in front of the sun. This would make them easier to study by distant alien worlds. Although it might sound unlikely, those planets who are easier to spot are not the big ones. Earth, together with Mercury, Venus, and Mars, are more visible than the giants.
The smaller planets of the solar system are easier to spot by faraway exoplanets
As they pass in front of the sun, big planets block more light than the smaller ones. Also, the closer the planet is to its star, the easier it is for it to be spotted and studied from faraway. Researchers think a combination of three planets at most should be visible, but the chances are still small for all three of them to be seen at the same time.
From all exoplanets discovered so far, researchers identified 68 which might be able to look at the planets of the solar system. From these 68, nine of them are positioned perfectly to spy upon Earth. However, the conditions on these nine worlds are not really suitable for life. However, they think there should be at least 10 more such planets which haven’t been discovered yet, but might have a good position for looking at Earth.
Image Source: Exoplanet Exploration – NASA