New Delhi: In September 2017, scientists with the help of NASA’s Hubble Space Telescope found that the outer Earth-sized planets orbiting the nearby dwarf star TRAPPIST-1 might still harbour substantial amounts of water.
The findings lent further weight to the possibility that the planets may indeed support alien life.
Now, a new study has offered more hope by saying that while all of the planets orbiting TRAPPIST-1 are mostly made of rock, some have the potential to hold far more water than Earth – 250 times more than the oceans on our home planet.
The form that water would take on TRAPPIST-1 planets would depend on the amount of heat they receive from their star, which is a mere nine percent as massive as our Sun.
Planets closest to the star are more likely to host water in the form of atmospheric vapour, while those farther away may have water frozen on their surfaces as ice.
TRAPPIST-1e is the rockiest planet of them all but still is believed to have the potential to host…