According to a new study, even if an intelligent species exists, the physical constraints which are present on some planets are likely to prevent them from taking any step in space travel.

The research article, which was published in the Journal of the British Interplanetary Society, looked into the possibility of alien civilisations&nbsp;which may exist in other worlds and the factors that may influence their ability to explore space.

The researchers studied the influence exerted by the escape velocity of the planet permitting a species to launch into space and explore the Solar System.

Also Read:&nbsp;<a href="https://www.wionews.com/science/aliens-made-the-meteor-that-hit-earth-10-years-ago-scientist-claims-687718">Aliens made the 'meteor' that hit Earth 10 years ago, scientist claims</a>

The escape velocity of Earth is 11.2 km/s, which is more than 40,000 kmph and is the speed which a rocket should attain to escape the gravitational pull of our planet.

In recent studies, the super-Earth planets which scientists have identified as potential candidates for hosting alien life, have comparatively higher masses and gravity.

<h2>Aliens likely deal with higher escape velocities</h2>

The planets are likely to have more than 10 Earth masses, which means intelligent alien civilisations living on them are likely to deal with higher escape velocities.

“It could therefore be the case that an intelligent species on these planets would never be able to travel into space due to sheer physical impossibility,” said Elio Quiroga, the study’s author and a professor at the Universidad del Atlántico Medio in Spain, as reported by Science Alert.

In the study, Dr Quiroga calculated the likely escape velocity needed in some of the planets outside the solar system and introduced a measure called the Exoplanet Escape Factor (Fex). The research added that space travel is unlikely on a planet with a Fex value of 2.2.&nbsp;

Watch:&nbsp;NASA Chief says aliens exist | This World

<div class="videoWrapper trancodeVideo"><iframe allowfullscreen="" autoplay="1" class="includeVideo" frameborder="0" height="350" src="https://www.wionews.com/videos/nasa-chief-says-aliens-exist-this-world-636678/embed" style="width:100%;max-width:560px;" width="560"></iframe></div>

“Values of Fex greater than 2.2 would make space travel unlikely for the exoplanet’s inhabitants,” the study emphasised.

“They would not be able to leave the planet using any conceivable amount of fuel, nor would a viable rocket structure withstand the pressures involved in the process, at least with the materials we know,” wrote Dr Quiroga.

For such aliens, not only leaving super-Earths but re-entry of spacecraft will also pose significant challenges.

(With inputs from agencies)

According to a new study, even if an intelligent species exists, the physical constraints which are present on some planets are likely to prevent them from taking any step in space travel.

According to a new study, even if an intelligent species exists, the physical constraints which are present on some planets are likely to prevent them from taking any step in space travel. The research article, which was published in the Journal of the British Interplanetary Society, looked into the possibility of alien civilisations which may exist in other worlds and the factors that may influence their ability to explore space. The researchers studied the influence exerted by the escape velocity of the planet permitting a species to launch into space and explore the Solar System. Also Read: Aliens made the 'meteor' that hit Earth 10 years ago, scientist claims The escape velocity of Earth is 11.2 km/s, which is more than 40,000 kmph and is the speed which a rocket should attain to escape the gravitational pull of our planet. In recent studies, the super-Earth planets which scientists have identified as potential candidates for hosting alien life, have comparatively higher masses and gravity. Aliens likely deal with higher escape velocities The planets are likely to have more than 10 Earth masses, which means intelligent alien civilisations living on them are likely to deal with higher escape velocities. “It could therefore be the case that an intelligent species on these planets would never be able to travel into space due to sheer physical impossibility,” said Elio Quiroga, the study’s author and a professor at the Universidad del Atlántico Medio in Spain, as reported by Science Alert. In the study, Dr Quiroga calculated the likely escape velocity needed in some of the planets outside the solar system and introduced a measure called the Exoplanet Escape Factor (Fex). The research added that space travel is unlikely on a planet with a Fex value of 2.2. Watch: NASA Chief says aliens exist | This World “Values of Fex greater than 2.2 would make space travel unlikely for the exoplanet’s inhabitants,” the study emphasised. “They would not be able to leave the planet using any conceivable amount of fuel, nor would a viable rocket structure withstand the pressures involved in the process, at least with the materials we know,” wrote Dr Quiroga. For such aliens, not only leaving super-Earths but re-entry of spacecraft will also pose significant challenges. (With inputs from agencies)

Intelligent aliens can also not beat humans in space travel: Study

Outrage seems to be growing as the Association of Zoos and Aquaria (Eaza) has been considering a cull of intelligent&nbsp;gorillas, citing the high number of the animals in zoos across Europe.&nbsp;

Campaigners, who say they should be returned to the wild, have slammed this plan to solve zoo overcrowding. &nbsp; &nbsp;

Across its 69 locations, Eaza seems to be responsible for 463 great apes. The association says it is looking for solutions to reduce the number of critically-endangered western lowland gorillas as there is overpopulation in its facilities. &nbsp;

Also Read:&nbsp;<a href="https://www.wionews.com/science/global-warming-affecting-one-of-the-most-monogamous-birds-leading-to-break-ups-431575" hreflang="en">Global warming affecting one of the most monogamous birds, leading to 'break-ups'</a>

A western lowland gorilla logged an IQ score between 70 and 90, which isn't far off the 85 to 115 usually logged by humans. &nbsp;

Apart from culling, it is also considering castrating and housing adult males in isolation. These methods are currently in use. &nbsp;

According to a gorilla action plan, which is being told to shareholders, culling is the "most appropriate tool" in biological terms. &nbsp;

Also Read:&nbsp;<a href="https://www.wionews.com/world/ultra-rare-deep-sea-footballfish-washes-ashore-california-beach-432233" hreflang="en">‘Ultra-rare deep-sea’ footballfish washes ashore California beach</a>

“The main downside of this option is that it is controversial in many countries and in some illegal, in specific circumstances. Any discussion on culling can quickly become an emotional one because it is easy to empathise with gorillas. This carries a high risk that an emotional response by the public and/or zoo staff and keepers, catalysed by social media, inflicts damage to zoos and aquariums,” the document said. &nbsp;

(With inputs from agencies)

Outrage seems to be growing as the Association of Zoos and Aquaria (Eaza) has been considering a cull of intelligent gorillas, citing the high number of the animals in zoos across Europe.

Outrage seems to be growing as the Association of Zoos and Aquaria (Eaza) has been considering a cull of intelligent gorillas, citing the high number of the animals in zoos across Europe. Campaigners, who say they should be returned to the wild, have slammed this plan to solve zoo overcrowding. Across its 69 locations, Eaza seems to be responsible for 463 great apes. The association says it is looking for solutions to reduce the number of critically-endangered western lowland gorillas as there is overpopulation in its facilities. Also Read: Global warming affecting one of the most monogamous birds, leading to 'break-ups' A western lowland gorilla logged an IQ score between 70 and 90, which isn't far off the 85 to 115 usually logged by humans. Apart from culling, it is also considering castrating and housing adult males in isolation. These methods are currently in use. According to a gorilla action plan, which is being told to shareholders, culling is the "most appropriate tool" in biological terms. Also Read: ‘Ultra-rare deep-sea’ footballfish washes ashore California beach “The main downside of this option is that it is controversial in many countries and in some illegal, in specific circumstances. Any discussion on culling can quickly become an emotional one because it is easy to empathise with gorillas. This carries a high risk that an emotional response by the public and/or zoo staff and keepers, catalysed by social media, inflicts damage to zoos and aquariums,” the document said. (With inputs from agencies)

Outrage over plan to cull intelligent gorillas due to overcrowding in zoos  

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