Imagine If There’s Life on Kepler 69c?

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Located 2,383 light-years from Earth, in the Cygnus constellation, is a potential super-Earth. At least that’s what it’s often referred to as. Kepler 69c is an exoplanet about 1.7 times larger than our planet. And it could also be around 3.5 times more massive.But there’s a catch. We don’t really know if this planet is located within the habitable zone of its star. If it’s too close, Kepler 69c would be too hot for liquid water to exist on its surface. If it’s too far from its sun, well, then it would be nothing more but a frigid world.Before you begin your journey to Kepler 69c, there’d be one very important thing to keep in mind. It’s far away. Almost 600 times further away than Proxima Centauri, our closest neighboring star.To even make this trip possible, you’d need a super-advanced hibernation pod. You don’t want to grow too old and die before you could even get to your destination, right? Well, hibernation technology that could make you sleep for over 200,000 years doesn’t exist yet.Looking back at the planet you left behind, who knows what changes would happen to our human civilization during your trip? No matter what, it’s way too late to turn around now.Based on the planet’s distance from its star, we know that Kepler 69c receives a similar amount of sunlight as Venus. And despite being more massive than Earth, it has a relatively low density. All this means is that instead of metals, this rocky planet is made of silicate and carbonate minerals.If Kepler 69c is anything like Venus, it would be a pretty hot planet. All because, similar to Venus, its clouds would trap the heat and create an extreme greenhouse effect.As you made your approach, you’d find surface temperatures as high as 475 °C (900 °F). And the atmospheric pressure would be over 90 times that of Earth at sea level. It would be like being 900 m (3,000 ft) deep in the ocean. Except you’d be on dry landWith conditions like this, you’d likely not find anything resembling an ocean here. Just like on Venus, the high temperatures would boil away all the water.Whatever life you could potentially encounter on this planet, it would need to be able to survive in these brutal conditions. Or it would have to exist somewhere else besides the surface.One place you could discover life on Kepler 69c would be up in the clouds. Around 50 km (30 mi) up, temperatures would be much, much cooler. They would range from about 30 to 70°C (86 to 158°F). And with its low density, this planet could have a surface gravity that would be just over 70% of what is found on Earth. This weaker gravity could allow lifeforms to thrive in the sky, where Kepler 69c is most hospitable.Life could just be floating freely in the atmosphere. This would be another way in which this planet could have far more in common with Venus than with Earth.Probes around Venus have picked up traces of a gas that could be a potential sign of life, phosphine. If you discovered phosphine in Kepler 69c’s atmosphere, it could be the result of bacteria that don’t require oxygen to survive.But be ready to hold your nose. This smelly gas has an odor similar to decaying fish. On Earth, the bacteria that produce phosphine often live in swamps or wetlands. But on Venus or Kepler 69c, this bacteria could exist in the thick, oxygen-less atmosphere itself.So in the end you may have just traveled a very, very long way to find the smallest and stinkiest of lifeforms. On the upside, you’ve just discovered extraterrestrial life.