Timeline of discovery of Solar System planets - Space Discovery Documentary
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the discoverer(s) listed.
Historically the naming of moons did not always match the times of their discovery. Traditionally, the discoverer enjoys the privilege of naming the new object; however, some neglected to do so (E. E. Barnard stated he would defer any suggestions as to a name [for Amalthea] until a later paper but never got around to picking one from the numerous suggestions he received) or actively declined (S. B. Nicholson stated Many have asked what the new satellites [Lysithea and Carme] are to be named. They will be known only by the numbers X and XI, written in Roman numerals, and usually prefixed by the letter J to identify them with Jupiter.). The issue arose nearly as soon as planetary satellites were discovered: Galileo referred to the four main satellites of Jupiter using numbers while the names suggested by his rival Simon Marius gradually gained universal acceptance. The International Astronomical Union (IAU) eventually started officially approving names in the late 1970s.
ANOTHER EARTH: Alien Planet - Space Documentary HD
We Are Not Alone In The Universe
I cannot imagine any single discovery that would have more impact on humanity than the discovery of life outside of our solar system. There is a human-centric, Earth-centric view of life that permeates most cultural and societal thinking. Finding that there are multiple, perhaps millions of origins of life and that life is ubiquitous throughout the universe will profoundly affect every human.
We live on a microbial planet. There are one million microbial cells per cubic centimeter of water in our oceans, lakes and rivers; deep within the Earth's crust and throughout our atmosphere. We have more than 100 trillion microbes on and in each of us. The Earth's diversity of life would have seemed like science fiction to our ancestors. We have microbes that can withstand millions of Rads of ionizing radiation; such strong acid or base that it would dissolve our skin; microbes that grow in ice and microbes that grow and thrive at temperatures exceeding 100 degrees C. We have life that lives on carbon dioxide, on methane, on sulfur, or on sugar. We have sent trillions of bacteria into space over the last few billion years and we have exchanged material with Mars on a constant basis, so it would be very surprising if we do not find evidence of microbial life in our solar system, particularly on Mars.
The recent discoveries by Dimitar Sasselov and colleagues of numerous Earth and super-Earth-like planets outside our solar system, including water worlds, greatly increases the probability of finding life. Sasselov estimates approximately 100,000 Earth and super-Earths within our own galaxy. The universe is young so wherever we find microbial life there will be intelligent life in the future.
Expanding our scientific reach further into the skies will change us forever.
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Searching for Alien Life on other Planets Documentary - The Science of Exoplanet Discovery
This documentary investigates one of the most controversial questions of the past hundred years... are we alone in the universe?
This is not one those films that claims to have conclusive proof, but rather a look at the serious science of the search for extraterrestrial life.
The search for extra-terrestrial life has been going for 50 years – but there’s been a recent breakthrough. Astronomers have discovered a new planet called Gliese 581 c.
It is the most Earth-like planet ever found. It orbits a star and may have habitats capable of supporting life. NASA hopes to find 50 more Earth-like planets by the end of the decade, all of which increases the chance that alien life has begun elsewhere.
The Earth is Not Alone - Space Documentary HD
People began traveling in space in 1961 in tiny spacecraft called capsules, which were launched from Earth by powerful rockets. Russian crews still travel in this kind of craft, in Soyuz capsules, but Americans now travel into space in shuttles, which are rocket-powered space planes.
HOW DO HUMANS SURVIVE IN SPACE?
There is no oxygen in space, so all crewed spacecraft carry a life-support system. This supplies air for people to breathe. The system also includes equipment to keep the air at a comfortable temperature and pressure and to remove carbon dioxide and odors.
HOW DOES SPACE TRAVEL AFFECT PEOPLE?
Gravity in space is much weaker than it is on Earth. When people travel in space, they seem to become weightless. This often makes them feel sick. Their bodies do not have to work as hard, because they are not fighting gravity to sit or stand up. If they stay in space for a long time, the lack of gravity makes their muscles start to waste away. Exercise and a special diet help to combat these effects.
WHAT IS THE FARTHEST ANYONE HAS TRAVELED IN SPACE?
Astronauts on the APOLLO PROJECT traveled to the Moon, about 239,000 miles (385,000 km) away. Russian cosmonaut Valeri Poliakov traveled a distance of about 174 million miles (280 million km) around Earth while in the Mir space station.
In the space race of the 1960s, the US Apollo Project beat the Soviet Union by landing the first astronauts on the Moon. The first Moon landing, by Apollo 11, took place on July 20, 1969, when Neil Armstrong and Buzz Aldrin became the first humans to set foot on another world.
WHAT WAS THE APOLLO SPACECRAFT LIKE?
The Apollo spacecraft was launched from Earth by the Saturn V rocket. On the launch pad, the whole assembly stood 365 ft (111 m) tall. The spacecraft itself weighed 50 tons (45 metric tons). It was made from three main modules (sections). The command module for flight control housed the three-person crew. The service module carried equipment, fuel, and a rocket motor. The lunar module detached from the craft and landed two astronauts on the Moon’s surface.
HOW MANY APOLLO LANDINGS WERE THERE?
There were six Moon landings, beginning with Apollo 11 in July 1969 and ending with Apollo 17 in December 1972. During the missions, 12 astronauts explored the lunar surface for a total of over 80 hours and brought back nearly 880 lb (400 kg) of Moon rock and dust for examination on Earth.
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The Search For Life On Mars | Space Science Documentary 2019
The possibility of life on Mars is a subject of significant interest to astrobiology due to its proximity and similarities to Earth. To date, no proof has been found of past or present life on Mars. Cumulative evidence shows that during the ancient Noachian time period, the surface environment of Mars had liquid water and may have been habitable for microorganisms. The existence of habitable conditions does not necessarily indicate the presence of life.
Scientific searches for evidence of life began in the 19th century, and continue today via telescopic investigations and deployed probes. While early work focused on phenomenology and bordered on fantasy, the modern scientific inquiry has emphasised the search for water, chemical bio-signatures in the soil and rocks at the planet's surface, and biomarker gases in the atmosphere.
Mars is of particular interest for the study of the origins of life because of its similarity to the early Earth. This is especially so since Mars has a cold climate and lacks plate tectonics or continental drift, so has remained almost unchanged since the end of the Hesperian period. At least two thirds of Mars' surface is more than 3.5 billion years old, and Mars may thus hold the best record of the prebiotic conditions leading to life, even if life does not or has never existed there, which might have started developing as early as 4.48 billion years ago
Explore Planet in Solar System and Beyond - The Quest to Discover Life Beyond Earth Documentary
It wasn’t long ago when astronomers who wanted to search for planets outside our solar system were considered daft. A couple of brave scientists began the search, found what they were looking for, and started a whole new area in astronomy. Hundreds of exoplanets have been identified and those who invest their careers in this search are no longer ridiculed. The search has led to a very respectable and fast-growing new field: astrobiology (sometimes called exobiology).
So what do astrobiologists expect to find and how do they build their models of alien life?
As far as we know, the fundamental ingredients for life are hydrogen, oxygen, nitrogen and carbon, the most common elements in the known universe. Earth life is composed principally of these four, plus sulphur and phosphorus and traces of other elements, for a total of some 26 elements. It is amazing to realize that such a small number of basic ingredients can give rise to such diversity as we find. The other essential for life seems to be water. On Earth, life exists in all climates and conditions where there is water, and in the very few areas where there is absolutely no water there is absolutely no life. Water is abundant in the universe, although more in the form of ice than liquid.
The Hunt for Life on Mars - Looking for Life Beyond Earth and the Universe Documentary
In the late 1970s, two Viking robots sailed to Mars, pillaged the soil and burnt any traces of life they found.
That was never the plan, of course. When NASA first landed the twin spacecraft named Viking 1 and Viking 2 on the surface of Mars 40 years ago, scientists were ecstatic to finally start studying Martian soil for signs of organic (carbon-based) molecules that could prove the Red Planet was hospitable for life. It should've been a slam-dunk mission. The pockmarked face of Mars was constantly being pelted with tiny, carbon-rich meteorites, after all — detecting signs of that carbon was thought to have been a sure thing.
Alien Planets Discovery Documentary - Alien Stom - Space Science
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At the centre of some black holes is 'an area where space and time exists' Colonies of aliens living on planets within black holes may not be as far-fetched as it sounds. Some black holes have a complex internal structure that allows photons, particles and planets to orbit a central singularity, according to one scientist. A singularity is the region in a black hole when space and time become infinite. However, Professor Vyacheslav Dokuchaev claims that at the centre of certain black holes, and under the right conditions, is an area where the fabric of space and time exists once more. If a charged and rotating black hole is large enough, he said, it can weaken the tidal forces that are beyond the event horizon - the point where nothing, not even light, can escape a black hole's gravity.
Easy Science: Inner Solar System Introduction - Full Documentary (1080p HD) - New 2017
This HD video science lecture is a overview of the solar system, its timeline of discovery, and provides new information on the history of the planets Mars, Venus, Mercury and the Earth. Best for beginners, it additionally explains the newest NASA videos & clips, information and discoveries from the most advanced spacecraft and probes. As the NASA professor explains, life in the universe is possible and with discovery and exploration by space probes and robotic spacecraft collect data information, and companies such as SpaceX sending it back to Earth for scientists to study, we will succeed.
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The Hunt For Life On Other Planets Begins - Space Mysteries Alien Safari
We use the most cutting edge theories and technologies available, top astronomers, astrophysicists and astrobiologists seek answers to the mysteries of space in our universe.
Since the dawn of humankind, our species has looked to the sky in wonder and amazement. Space Mysteries traces the history of our species' fascination with outer space from past to present - from Galileo to Stephen Hawking. The series then kicks into full-investigation mode, featuring the latest in high-tech gadgetry: unmanned probes, deep-space telescopes, particle accelerators, mega-satellite dishes, and more. Visually stunning CGI takes viewer where the video camera cannot tread - into the depths of our universe.
Discover Distant Realms of our Solar System - Are There Other Planets Like Earth?
Titan, one among the 62 moons that orbit the planet Saturn is also its largest. Measuring in at 5,149.4 kilometers in diameters, Titan is about half as big as the earth and double the size of the earth’s moon.
However, we cannot just stop the comparison between the Titan and the earth just there, let us delve a little deeper because Titan is very special!
Titan was discovered on March 25, 1655, by Christiaan Huygens and was given the name by John Herschel after the mythological Greek gods. Even though Titan is a Moon, its atmosphere is strikingly similar to that of the early earth.
What Galileo Saw With His Telescope
The History of Earth - How Our Planet Formed - Full Documentary HD
In the very beginning of earth's history, this planet was a giant, red hot, roiling, boiling sea of molten rock - a magma ocean. The heat had been generated by the repeated high speed collisions of much smaller bodies of space rocks that continually clumped together as they collided to form this planet. As the collisions tapered off the earth began to cool, forming a thin crust on its surface. As the cooling continued, water vapor began to escape and condense in the earth's early atmosphere. Clouds formed and storms raged, raining more and more water down on the primitive earth, cooling the surface further until it was flooded with water, forming the seas.
It is theorized that the true age of the earth is about 4.6 billion years old, formed at about the same time as the rest of our solar system. The oldest rocks geologists have been able to find are 3.9 billion years old. Using radiometric dating methods to determine the age of rocks means scientists have to rely on when the rock was initially formed (as in - when its internal minerals first cooled). In the infancy of our home planet the entire earth was molten rock - a magma ocean.
Since we can only measure as far back in time as we had solid rock on this planet, we are limited in how we can measure the real age of the earth. Due to the forces of plate tectonics, our planet is also a very dynamic one; new mountains forming, old ones wearing down, volcanoes melting and reshaping new crust. The continual changing and reshaping of the earth's surface that involves the melting down and reconstructing of old rock has pretty much eliminated most of the original rocks that came with earth when it was newly formed. So the age is a theoretical age.
When Did Life on Earth Begin?
Scientists are still trying to unravel one of the greatest mysteries of earth: When did life first appear and how did it happen? It is estimated that the first life forms on earth were primitive, one-celled creatures that appeared about 3 billion years ago. That's pretty much all there was for about the next two billion years. Then suddenly those single celled organisms began to evolve into multicellular organisms. Then an unprecedented profusion of life in incredibly complex forms began to fill the oceans. Some crawled from the seas and took residence on land, perhaps to escape predators in the ocean. A cascading chain of new and increasingly differentiated forms of life appeared all over the planet, only to be virtually annihilated by an unexplained mass extinction. It would be the first of several mass extinctions in Earth's history.
Scientists have been looking increasingly to space to explain these mass extinctions that have been happening almost like clockwork since the beginning of living time. Perhaps we've been getting periodically belted by more space rocks (ie. asteroids), or the collision of neutron stars happening too close for comfort? Each time a mass extinction occurred, life found a way to come back from the brink. Life has tenaciously clung to this small blue planet for the last three billion years. Scientists are finding new cues as to how life first began on earth in some really interesting places - the deep ocean.
Documentary 2015 Universe Documentary Clockwork and Creation & Frozen Wanderers
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How The Universe Works Sun Season 3 Episode 1 Full Documentary How the Universe Works is a mini-series that originally aired on the Discovery Channel .
Search for Life in the Universe - New Discoveries Never Before Seen - Documentary film
During this period, known as the Mars solar conjunction, our home star and its corona pass between Earth and the Red Planet. Some radio signals might still get through, according to a statement from NASA's Jet Propulsion Laboratory (JPL), but they aren't reliable. Fortunately for all those distant robots, NASA knows this happens every couple years, and the machines are well prepared for the coming quiet period.
Our engineers have been preparing our spacecraft for conjunction for months, Roy Gladden, manager of the Mars Relay Network, said in the statement. They'll still be collecting science data at Mars, and some will attempt to send that data home. But we won't be commanding the spacecraft out of concern that they could act on a corrupted command.
Alien Planet KEPLER 186F - Full Documentary [HD] #Advexon
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Full Space Documentary - NOVA - Hunting the Edge of Space
This program describes the most remarkable, perspective changing discoveries in the field of cosmology in the last 100 years. Each discovery was made by scientists working with a radically new telescope.
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Naked Science - Moon Mysteries
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The moon is far more than just a beautiful object in the night sky.
Ever since its creation 4.5 billion years ago the moon has been edging away from Earth into space. Throughout its journey, it has influenced our planet in different ways. But one things clear, without it life would never have emerged on Earth.
4.5 billion years ago the moon forms when another planet slams into the early Earth. The impact knocks our planet “off-balance” onto an axis of 23 degrees, which we still rotate around today. This is what gives us our seasons. Without it we would have no summers, springs, winters or falls.
4 billion years ago the solar system endures the most violent meteorite bombardment in its history, the Lunar Cataclysm. The Earth, being 50 times bigger than the moon, exerts a massive gravitational pull on incoming space debris. Because the moon is still so close to Earth it too gets hit. 99% of all craters on the lunar surface visible today are a result of this bombardment.
3 billion years ago the Earth has water and oceans. Because the moon is far closer its gravitational pull is far stronger on the Earth. The tides it creates are thousands of feet high and smash hundreds of miles inland every day. Scientists believe that these tides feed the Primordial Soup with the minerals required to start life. Without them only the most basic microbes would be on Earth today.
Today the moon has the same gravitational pull as a mosquito landing on your head, yet some people still believe it can influence our planet in bizarre ways.
The San Francisco Police Department tell us how crime appears to soar during a full moon. But the scientific data suggests otherwise, studies show no correlation between the Full Moon and violence. Naked Science investigates.
Scientific research into the moon is allowing some scientists to predict when natural disasters will strike. Some researchers believe that when the sun and moon align and pull together on the Earth they can trigger both earthquakes and volcanic eruptions.
In the future the moon will move so far from Earth that it will affect the fine balance of our planet, sending our climate tumbling out of control.
Strong Signs We've Found of Aliens and Alien Life - Discovery Of Life On Mars Planet
Planets in the hundreds of billions are likely caught up in the vast whirlpool of the Milky Way galaxy. From Earth, a lonely outpost on one of its spiral arms, we’ve begun to peer across the void. We can already make out, dimly, the light from planets orbiting distant stars. We’ve even tasted a few of their atmospheres by dissecting those faint traces of light.
Discovery of New Exoplanets Documentary - Discovery and Exploration of the Solar System
PLANETS beyond our solar system—called exoplanets—existed only in theory and science fiction. It seemed nearly impossible to detect planets light-years away, since the relatively tiny worlds would appear billions of times fainter than their parent stars. But in the last two decades astronomers have successfully developed indirect detection methods, most of which rely on measuring the effects of orbiting planets on far-off stars.