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Our Solar System Is Teeming With Life | A Journey To All 8 Planets

Our Solar System Is Teeming With Life | A Journey To All 8 Planets


The universe. A place with infinite possibilities and wonders
that fascinate us everytime we look into the sky. For years scientists were looking for other
live signs out there in order to answer the most important question for humankind: Are
we alone ? But before we explore the depths of the universe we should take a look to our
neighbours, because our solar system is teeming with life. Stay close while we will take you into a journey
to every planet in our solar system, in a search for alien life and exotic places. Its orbit around the Sun takes 87 days, the
shortest of all the planets in the Solar System. It is named after the Roman deity Mercury,
the messenger of the gods. Daytime temperatures can reach 430 degrees
Celsius and drop to -180 degrees Celsius at night. Mercury has an oddball orbit it takes longer
for it to rotate on its axis and complete a day than it takes to orbit the sun and complete
a year. Now, researchers suggest photosynthesis could
take place on an alien planet with a similarly bizarre orbit, potentially helping support
complex life. However the threat of prolonged periods of
darkness and cold on these planets would present significant challenges for life, and could
even potentially freeze their atmosphere. Despite searing daytime temperatures, Mercury
has ice and frozen organic materials inside and permanently shadowed craters in its north
pole. Earth-based telescopes have been compiling
evidence of ice on Mercury for 20 years, but the finding of organics was a big surprise. Both ice and organic materials, which are
similar to coal, were believed to have been delivered millions of years ago by comets
and asteroids crashing into the planet. It’s believed that Venus may have been a temperate
planet hosting liquid water for 2 to 3 billion years. A massive resurfacing event about 700 million
years ago triggered a runaway greenhouse effect, which caused the planet’s atmosphere to become
incredibly dense and hot. The hellish planet Venus may have had a perfectly
habitable environment for 2 to 3 billion years after the planet formed, suggesting life would
have had enough time to emerge there. Until the mid 20th century, the surface environment
of Venus was believed to be similar to Earth, therefore it was widely believed that Venus
could harbor life. In 1870, the British astronomer Richard Proctor
said the existence of life on Venus was impossible near its equator, but possible near its poles. What we know so far about the planet Mars
is that in the past it had liquid water. Currently there is frozen water at the poles
and traces of microbial life on the planet’s surface, but scientists suspect that there
may be advanced life forms inside the planet. Groundwater might be the only habitat for
extant life on Mars, if it still exists today. The surface of Mars is cold, dry and there
is lots of radiation. Underground could be more habitable for life
forms and may have some form of stable water supply. Some scientists think that agile robots should
be made that could try and explore the cave systems on Mars. More than 1,000 potential cave entrances have
been mapped on Mars by the US Geological Survey’s (USGS) Astrogeology Science Center. Also NASA could use a rover that could sense
underground water or chemicals associated with life from the surface. This would make it easier to target specific
areas that life is most likely to be found.NASA intends to send its WED rover to Mars later
this year. The plan for the space probe is to gather
new evidence of life that’s alive or extinct and send Martian samples back to Earth. In a stunning scientific discovery, researchers
have found water clouds inside Jupiter’s Great Red Spot, raising the prospect that
life may exist on the planet. Jupiter’s Great Red Spot is a storm that
has been continuously observed since 1830, and remains a mystery to NASA and much of
the scientific community, but the discovery of water clouds may lead to a greater understanding
of the planet, its atmosphere and whether it ever held life. Water may play a critical role in Jupiter’s
dynamic weather patterns, so this will help advance our understanding of what makes the
planet’s atmosphere so turbulent. But Jupiter’s story is far from over. Even we don’t find any life signs on the giant
gas planet there is another candidate: His moon Europa; This icy world can have oceans
under the ice sheet full with life and creatures we don’t even imagine. In the next years NASA is planing to send
a probe there that can drill thru the ice and explore Europa’s oceans. Saturn’s environment is not good for 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. While planet Saturn is an unlikely place for
living things to take hold, the same is not true of some of its many moons. Satellites like Titan, home to internal oceans,
could possibly support life. Titan is a geological wonderland for planetary
scientists. It has rivers, lakes and seas of actual liquid;
not water but the hydrocarbons methane and ethane. It has mountain ranges, possible ice volcanoes
and vast hydrocarbon dunes. There is also evidence for a subsurface ocean
of water, similar to those believed to lie beneath the surface of Jupiter’s moon Europa. Scientists suggested that the best locations
to look for life on Titan would not be the lakes or seas. Instead, the new work shows a better place
to look would be within impact craters. They also reason that these areas are where
ice in Titan’s crust could temporarily melt into a liquid. Water is still the only solvent known to be
able to support life as we know it. Uranus’s atmosphere is full of hydrogen
and helium, but unlike its larger cousins, Uranus also holds an abundance of methane,
ammonia, water, and hydrogen sulfide. Methane gas absorbs light on the red end of
the spectrum, giving Uranus its blue-green hue. If you were to fly down through the layers
of the atmosphere, the surrounding clouds would grow denser and denser, colder and colder,
bluer and bluer as the gases absorbed more of the visible spectrum. And deep below the atmosphere you may find
the answer to yet another one of Uranus’s big puzzles: Its unruly magnetic field is
tilted 60 degrees from its rotational axis, much stronger on one pole than the other,
and shifted a few thousand miles off-center. Some astronomers believe the warped field
may be the result of vast oceans of ionic liquids hidden beneath the greenish clouds,
full of water, ammonia, or even liquefied diamond. 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 find life on Neptune, the planet would
need to have a source of energy that bacterial life can exploit, as well as a standing source
of liquid water. At its surface, the temperature of Neptune
dips down to -220 degrees Celsius. That’s very cold, and there’s no way liquid
water could exist. But as you travel down into Neptune’s interior,
temperatures and pressures increase. And there could very well be a point inside
the planet where water remains as a liquid, and life could exist inside it. Of course, this region would be hundreds of
kilometers below the surface, and would be impossible for us to study. So for now, it will have to remain a mystery. Right now, scientists don’t know if there’s
any life on Neptune, and the conditions on the planet seem very hostile for life. Recent studyes spotted something that appeared
to be moving and “leaving a path” across the surface of Pluto in a NASA photograph. Despite being downgraded to a dwarf planet
Pluto is very geologically active beneath the surface. One area, known as Sputnik Planitia, is covered
in “scars” believed to have been created by convection cells in a kind of soft nitrogen
ice. This flat surface area on Pluto is host to
these strange markings we find on the surface. Many people believed that Pluto is a dead
world, but it turns out that’s not true. So are we missing something ? Oh yes…this
Pale Blue Dot that is our home: Planet Earth. Even we find many exoplanets in the habitable
zone every year none can compare to our planet so far. We should fell lucky and special on this beautiful
world that provided everything for us. Thank you for watching this short documentary. If you like our content hit that subscribe
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Reader Comments

  1. Our Solar System Is Teeming With Life | A Journey To All 8 Planets
    In this short documentary we will explore: Life on Mercury | Life on Venus | Life on Mars | Life on Jupiter | Life on Saturn | Life on Uranus | Life on Neptune | Life on Pluto | Life on Europa | Life on Titan

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