Uranus' environment is not conducive to life as we know it. The temperatures, pressures, and materials that characterize this planet are most likely too extreme and volatile for organisms to adapt to.
6. Uranus and Neptune. Uranus and Neptune are also gas giants, so as Tyson explains point-blank, “No, forget about it.” Yep, you would only survive on each of these for less than one second. That's not even taking into account the temperatures, with Neptune averaging -373 degrees F and Uranus at -353 F.
The other problem is that life on Earth requires sunlight to provide energy. There's no process inside Uranus, like volcanism on Earth, that would give life inside the planet a form of energy. Life on Uranus would have to be vastly different from anything we have here on Earth to be able to survive.
If you tried to land a spacecraft on Uranus, it would just sink down through the upper atmosphere of hydrogen and helium, and into the liquid icy center. When we look at Uranus, we see the blue-green color that seems to come from the surface of Uranus. This color is light from the Sun reflected off Uranus' surface.
It's about 3.6 billion miles away from the Sun, and it has a thin atmosphere composed mostly of nitrogen, methane, and carbon monoxide. On average, Pluto's temperature is -387°F (-232°C), making it too cold to sustain life. Pluto is orbited by five known moons, the largest of which is Charon.
Jupiter's environment is probably not conducive to life as we know it. The temperatures, pressures, and materials that characterize this planet are most likely too extreme and volatile for organisms to adapt to.
Robert Zubrin has pointed out that Titan possesses an abundance of all the elements necessary to support life, saying "In certain ways, Titan is the most hospitable extraterrestrial world within our solar system for human colonization." The atmosphere contains plentiful nitrogen and methane.
You couldn't stand on Saturn, because there's no solid surface to stand on. If you tried to “land” on Saturn, you'd sink thousands of miles to depths where the heat and pressure are so high that not even the sturdiest submarine could survive! liquid metallic hydrogen layer.
Saturn's environment is not conducive to life as we know it. The temperatures, pressures, and materials that characterize this planet are most likely too extreme and volatile for organisms to adapt to.
Flexi Says: Right now and for the foreseeable future, humans can only live on Earth. Humans have not traveled very far into space. The Moon is the only other place humans have visited. No other planet in our solar system currently has the conditions to support life as we know it on Earth.
The primary reason that humans cannot walk or stand on the surface of Uranus is that the surface isn't solid. Most of Uranus underneath its gaseous atmosphere appears to be composed of a slushy mixture of water, methane, and ammonia.
Astronauts need space suits to stay alive. You could only last 15 seconds without a spacesuit - you'd die of asphyxiation or you'll freeze. If there's any air left in your lungs, they will rupture.
It's relatively cool with an average annual temperature of -60 degrees Celsius, but Mars lacks an Earth-like atmospheric pressure. Upon stepping on Mars' surface, you could probably survive for around two minutes before your organs ruptured.
Potential for Life. Uranus' environment is not conducive to life as we know it. The temperatures, pressures, and materials that characterize this planet are most likely too extreme and volatile for organisms to adapt to.
NASA is considering a concept for a mission to Uranus and its moons. It's called the Uranus Orbiter and Probe, and it's a flagship mission that could be launched in 2031.
Tough Place for Life
It is unlikely that life as we know it could survive on Mercury due to solar radiation, and extreme temperatures.
Exploring the surface of Venus is difficult because of the intense heat and crushing air pressure. The longest any spacecraft has survived on the surface is a little over two hours – a record set by the Soviet Union's Venera 13 probe in 1981.
The surface of Venus is completely inhospitable for life: barren, dry, crushed under an atmosphere about 90 times the pressure of Earth's and roasted by temperatures two times hotter than an oven.
Titan is not a pleasant place for life. It is far too cold for liquid water to exist, and all known forms of life need liquid water. Titan's surface is -180°C.
The atmosphere of Venus is very hot and thick. You would not survive a visit to the surface of the planet - you couldn't breathe the air, you would be crushed by the enormous weight of the atmosphere, and you would burn up in surface temperatures high enough to melt lead.
Could humans land on Mercury's surface? In spite of being so close to the Sun, and wild swings in extreme temperatures, humans could technically walk on the planet's surface. Mercury's slow rotation means it takes 59 Earth days for it to turn around once.
Uranus holds the record for the coldest temperature ever measured in the Solar System: a very chilly -224℃. The temperature on Neptune is still very cold, of course – usually around -214℃ – but Uranus beats that. The reason why Uranus is so cold is nothing to do with its distance from the Sun.
Thus, Titan could potentially harbor environments with conditions suitable for life—meaning both life as we know it (in the subsurface ocean) and life as we don't know it (in the hydrocarbon liquid on the surface).
Humans exposed to this level of radiation for one day would have greater than a 50% mortality rate within 30 days. Another problem is that the surface temperature of Europa averages around 90K, or -183 °C. Furthermore, the low gravity of Europa may also present challenges to colonization efforts.
Europa's surface is blasted by radiation from Jupiter. That's a bad thing for life on the surface – it couldn't survive. But the radiation may create fuel for life in an ocean below the surface. The radiation splits apart water molecules (H2O, made of oxygen and hydrogen) in Europa's extremely tenuous atmosphere.