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The AstronomersCrater
Videos with tag Crater
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14:47
14:47
14:47

Wandering Stars: a tour of the planets

A beauteous rip through the solar sytem, based on NASA's Science on a Sphere program "The Wanderers." In ancient times, humans watched the skies looking for clues to their future and to aid in their very survival. They soon observed that some stars were not fixed, but moved in the sky from night to night. They called these stars the wanderers. At the center of our solar system is the sun, binding the planets with its gravitational pull. From our viewpoint on earth, the sun appears small in the sky, but in reality it dwarfs even Jupiter, the largest planet in the solar system. The distance from the sun to the small worlds traveling it are vast. Light takes eight minutes to reach earth, and nearly a day to reach the farthest known bodies. Join us now as we tour our solar system, starting with sun-baked mercury and traveling to the remotest outskirts, where small, icy bodies move with only the faintest connection to our sun. Mercury Mercury, the closest planet to Sun is also the smallest terrestrial planet. It orbits so swiftly that its year lasts only 88 Earth days. The airless cratered surface could almost be mistaken for our moon, relentlessly bombarded by meteoroids for four and a half billion years. One of these encounters left a giant scar called the golarus basin, one of the largest impact sights in the solar system. Temperatures on the surface of mercury can reach a blistering 800 degrees Fahrenheit, and can dip to 300 degrees below zero on the night side. Venus Venus, as seen from Earth, is the brightest object in sky after the Sun and Moon. Russian probes were the first to land on Venus in the 1970's and 1980's. Venus's surface is volcanic. Its atmosphere is composed of thick, dense carbon dioxide with sulfuric acid clouds. Both are potent greenhouse gases that trap incoming sunlight. Venus rotates slowly—one Venusian day lasts almost four Earth months. Earth Earth is the only planet with life as we know it. The atmosphere and temperatures are "just right" for life. It is the only known body in our solar system where water can exist as a gas, liquid, and solid. Vast oceans dominate surface of the planet. Seasonal changes occur on the surface. Earth has a solid surface that constantly shifts due to plate tectonics. Mars Once geologically active, Mars has the largest dormant volcano in the solar system, Olympus Mons. It also hast the longest valley in the solar system, called Valles Marineris. Mars has a thin, atmosphere primarily composed of carbon dioxide. Surface conditions are dynamic. Mars has seasons as well as massive dust storms that cover the planet. Its surface features include the smooth, low-lying northern hemisphere and the craggy, heavily-cratered southern uplands. Evidence suggests that Mars had water running on its surface at some time in the past. Asteroid belt The asteroid belt is composed of small rocky pieces. The big question is "What happened here?" and "Why no planets?" The asteroid Ceres is large enough to be classified as a dwarf planet. Jupiter Jupiter is the largest and most massive planet in the Solar System. It rotates rapidly, completing one rotation every 10 hours. Long-lasting, high-speed winds and storms dominate Jupiter's atmosphere. Jupiter has a faint planetary ring system and over 63 moons. The largest moons, discovered by Galileo in 1610, vary widely. Io is volcanically active. Europa's cracked surface likely hides an ocean below. Ganymede is the largest moon in the Solar System. Callisto is heavily cratered. Saturn Saturn's seemingly serene atmosphere hides powerful storms and winds on its surface. Saturn is known for its extensive ring system made of chunks of ice, rock, and dust with small moonlets embedded within the rings. Saturn has more than 60 moons. Conditions vary among the moons. Titan, the largest moon, has a thick, smoggy, atmosphere covering its icy surface with lakes of liquid methane or ethane. Small Enceladus has water and ice geysers at its south pole. Its water vapor coat other nearby moons and create a thin Saturn ring. Uranus Uranus receives 400 times less sunlight than Earth. Uranus lies nearly sideways, making its axis nearly parallel to the plane of the Solar System. This extreme tilt give rise to seasons that last nearly 28 Earth years. Uranus as many moons and a faint ring system. It has only been visited by one spacecraft, Voyager 2, in 1986. Like the other giant planets, Uranus's atmosphere is primarily hydrogen and helium with a trace of methane gas over deep clouds, giving it a pale blue-green tint. Neptune Neptune also has many moons and a faint ring system. Its Great Dark Spot, a large storm with extremely strong winds, disappeared in the 1990s. Neptune's vivid blue color is due to its frigid temperature: -371°F (-224 °C).

Channels: Planetary science 

Added: 1913 days ago by deek

Views: 735 | Comments: 0

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02:47
02:47
02:47

Lunar Moon Crater Copernicus Close up 2009

Gridkeeper Music http://www.youtube.com/gridkeepermusic Lunar Moon Crater Copernicus Close up 2009 filmed through a 12" Meade LX 90 telescope by John Lenard Walson. Video edit, audio and hosting by Gridkeeper. I tried to get this clearer but it's still not enough. The original film is incredible. This might look better when viewed on a Mac and old PC screens, not the LCD ones. PLease watch using the high quality option. Latest audio house/dance release from Gridkeeper - Moon Transmissions e.p. http://www.amazon.co.uk/Moon-Transmissions-e-p/dp/B0029BTYAU/ref=sr_f3_1?ie=UTF8&s=dmusic&qid=1242155027&sr=103-1

Channels: The Astronomers 

Added: 1954 days ago by deek

Views: 523 | Comments: 0

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02:41
02:41
02:41

Copernicus Crater Phoenix Moon Base

A huge mile high Phoenix statue and a split tail NAZCA line Peru depicted massive abduction vessel are near the two KM high crater wall of this 53 mile/ 98 KM wide crater called Copernicus. It has two of the largest alien objects that can be seen from Earth with a large or pro class of telescope. The main picture was taken by Apollo 17 and the data is backed up in this video from the other side via PIA00094 taken years earlier by one of the NASA Lunar Orbiter satellites. I think Apollo 17 was a recon mission to observe an alien base in Copernicus captured in both Lunar Orbiter and Apollo 12 photos? Very ancient yet perfectly preserved on Earth's Moon. The cool thing about this photo is it is from the side of the moon faced toward Earth. This crater is located at 10 Deg. North and 20Deg West so we can locate the anomalies within its large parimeter. http://www.examiner.com/x-2912-Seattle-Exopolitics-Examiner~y2009m6d19-NASA-moon-bombing-violates-space-law--may-cause-conflict-with-lunar-extraterrestrial-civilizations

Channels: The Astronomers 

Added: 1954 days ago by deek

Views: 521 | Comments: 0

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