To unravel why we are trapped on the Earth and if there’s anyone else out there in the universe, we, the humans, have been peeping deep into the sky since ages. Although we haven’t found “the thing” thus far, we have spotted a lot of Earth-like giant planets, the Super-Earths, which, according to our scientists, lie in the habitable zone of their star and may host life, just like Earth.

What is a Habitable Zone

A habitable zone (for the earthlings) is a temperature zone (around a star) which supports liquid water (which technically means: life) on the surface of the planet.

For us, the earth sits in the habitable zone of the Sun.

Super-Earths are a type of Exoplanets that can be up to 10 times the mass of Earth. Earlier studies suggest that – not only can these bigger versions of Earth offer an environment that supports life, but they can also go even beyond and be more suitable and habitable owing to factors such as stronger and thicker atmosphere. The thick atmospheric layer would provide stronger protection against detrimental cosmic rays from their stars.

The good news is, we have found several super-Earths in recent years. But, the bad news is, if any of these massive rocks is home to some sort of alien life, they might not be able to leave their planet and explore the outer space, reveals a new study.

In an interview, Michael Hippke, an independent researcher associated with Sonneberg Observatory, Germany told Space dot com, “On more-massive planets, spaceflight would be exponentially more expensive .”


A space launch vehicle will need to be heavier and massier to be able to escape a super-size planet. More fuel will be required as the rocket will have to work really hard to cross the layers of the atmosphere.

More fuel means the rocket will need a larger fuel reserve which will ultimately add to the total mass of the rocket. They will need to build a heavier and more robust and capacious space shuttle that can sustain the tough gravitational pull of the super-earth. Additionally, they will also need a higher escape velocity to depart from the planet.

The biggest challenge for them would be to prevent fuel leak and lower its consumption during the launch of a rocket or space exploration mission. It will be an even bigger challenge for other extraterrestrial civilizations (like us) to visit there and come back to their home planet again.

The study remarks that the civilization on Super-Earths may not have access to satellite TV, orbital telescopes, and space stations. Their planet will be like a jail from where they cannot leave. The only way they can contact other alien civilizations and explore the mysteries of the space is through radio telescope and lasers if they are familiar with these technologies.

Related Read: Will humans ever be able to identify extraterrestrial life?