Search result Methane

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© Jean-Philippe Delobelle / Biosphoto

Methane bubbles trapped in the ice of a Bugey pond. Methane production by bacteria living in silt without oxygen, Bugey, Ain, France

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© Jean-Philippe Delobelle / Biosphoto

Methane bubbles trapped in the ice of a Bugey pond. Methane production by bacteria living in silt without oxygen, Bugey, Ain, France

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© Jean-Philippe Delobelle / Biosphoto

Methane bubbles trapped in the ice of a Bugey pond. Methane production by bacteria living in silt without oxygen, Bugey, Ain, France

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© David Tatin / Biosphoto

Flames produced by the emergence of a pocket of gas that is consumed naturally in contact with the air, Yanartas (means "Chimera" in Turkish), Turkey

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© Mark Boulton / Biosphoto

Two large biogas digesters producing methane by anaerobic bacterial digestion Germany

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© Jean-Philippe Delobelle / Biosphoto

Methane bubbles in the ice Lac des Rousses France

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© Jean-Philippe Delobelle / Biosphoto

Methane bubbles frozen in ice and water lilies France

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© Mark Boulton / Biosphoto

Electricity generation from methane recycling landfill site ; Wingmoor Farm Stoke Orchard

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© Jean-Philippe Delobelle / Biosphoto

Bulle methane dating from the bottom of the marsh

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© Jean-Philippe Delobelle / Biosphoto

Bulle methane dating from the bottom of the marsh

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© Christian Vidal / Biosphoto

Green waste in horizontal silos ; Intended for composting and methanisation, green and fermented wastes is crushed then placed in horizontal silos. Sprinkled then moved from silos to silos, wastes ferment, release methane, which will be recovered. At the end of a three months stay, the compost is calibrate in three categories.

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© Jean-Philippe Delobelle / Biosphoto

Methane bubbles trapped in the ice of a pond France

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© Denis Bringard / Biosphoto

Barge methane tanker in a lock of the Large Channel of Alsace

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept showing how Uranus might look from a position in space several hundred thousand miles above its south pole. . Uranus is a gas giant composed primarily of hydrogen and helium gases surrounding a relatively small, dense core of molten rock and metal. Its bluish color is due to the presence of methane in its upper atmosphere. . Uranus also has a ring system. However, Uranus' rings are over three orders of magnitude dimmer than Saturn's; where Saturn's rings are nearly white, Uranus' rings are more like the color of charcoal. . . One bizarre aspect of Uranus is that its axis of rotation is tipped beyond 90 degrees in relation to the plane of its orbit around the Sun. This puts Uranus' north and south poles, relative to the Sun, where the other planets have their equators.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept of how Uranus and its tiny satellite Puck might look from a position in orbit around Puck. Puck in turn orbits Uranus at a height of 37 thousand miles above Uranus' cloud tops, completing one orbit in about 18 hours. Due to the fact that Puck's orbit is on the same plane as Uranus' rings, they would appear as little more than a thin line from this vantage point.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept of how Uranus and its tiny satellite Puck might look from a position in space about a thousand miles above and beyond Puck itself. With a diameter of about 100 miles, Puck is the largest and outermost of the ten known inner satellites that orbit Uranus within a radius of 51 thousand miles. . Further in toward Uranus on the right is Belinda, a moon that is about 40 miles in diameter. Even closer to Uranus on the far left is the 60-mile-diameter satellite Portia. On Uranus itself can be seen a giant, cyclonic storm that's nearly as big as the Earth. During the past few years the Hubble Space Telescope has observed storms in Uranus' southern hemisphere, but the structure and an nature of these storms is unknown.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept showing Uranus (left) and Earth (right) to scale. Uranus is four times the diameter of Earth. Uranus is the seventh planet from the Sun, Earth is the third.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept of the surface of Saturn's moon Titan. Initially astronomers thought that Titan's entire surface may be covered by a liquid hydrocarbon ocean. More recent observations in infrared wavelengths suggest otherwise. In this image the artist is suggesting that Titan may be host to extremely cold ethane-methane swamps.

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© Walter Myers / Stocktrek Images / Biosphoto

A pair of balloon-borne probes leisurely survey a methane-ethane swamp on Titan. Each probe carries its own spot light illuminating the terrain below, augmenting the haze-filtered sunlight. . . Scientists have long speculated that methane and ethane may exist as liquids on Titan's extremely cold surface, but it wasn't until 2005 that the Cassini spacecraft's radar imager detected what indeed may be large hydrocarbon lakes on Titan's northern latitudes. While it is believed that the liquid in these lakes would be primarily methane and ethane, this won't be confirmed until the lakes are actually sampled. Whatever lies on Titan's surface, there is the possibility that the ancient and exotic environment has given rise to compounds heretofore unknown on Earth. . Large quantities of Methane and ethane exist in Earth's relatively warm environment as components of natural gas.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept of methane clouds over Titan's south pole. In October 2004 the Cassini orbiter revealed for the first time what may be highly reflective (in the infrared at least) methane clouds over Titan's south pole. This image suggests how those clouds may appear from within the cloud deck itself. The Sun is visible immediately above, though from this great distance the Sun appears to be only 1/10th its diameter from Earth.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept of Saturn amongst the hydrocarbon haze of its moon Titan. Saturn and its rings would be a majestic sight lording over Titan's hydrocarbon haze. The viewpoint is from 50 miles above Titan's surface and three-quarters of a million miles away from Saturn itself. Three of Saturn's smaller satellites can also be seen extending from the ring plane; to the left of Saturn is Enceladus, and to the right are Tethys and Rhea. . Technically, the orange clouds mark the beginning of Titan's condensate haze, which consists of ethane, methane, nitrogen, and a variety of hydrocarbons known collectively as tholin. These gases and hydrocarbons extend upward another 250 miles, resulting in a bluish, earth-like sky, albeit darker due to Titan's great distance from the Sun. Tholin is created by the interaction of the nitrogen-rich gases with ultraviolet light from the Sun and ultimately precipitates all the way down to Titan's surface. Notwithstanding its flame-like colors, this haze is chilled to minus 330º F.

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© Walter Myers / Stocktrek Images / Biosphoto

Despite its small size and extreme distance from the Sun, Pluto does have an atmosphere. The atmosphere arises because there are periods when Pluto is closer to the Sun than Neptune. During this plutonian summer, the ices on Pluto's surface sublimate and form a methane and nitrogen atmosphere. This atmosphere is continually produced and lost again while Pluto is inside Neptune's orbit; during this time the density of Pluto's atmosphere may rival that of Mars.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept of Pluto. In 1985 it was discovered that Pluto has an atmosphere, albeit a very tenuous one. Pluto's atmosphere arises only when it approaches closer to the Sun during its highly eccentric, 248 earth years long orbit. The atmosphere likely consists of nitrogen, methane, and carbon monoxide, which sublimate directly from Pluto's frozen surface. As Pluto's orbit moves it away from the Sun, these gases are believed to slowly precipitate back to Pluto's surface.

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© Walter Myers / Stocktrek Images / Biosphoto

A full Neptune washes Triton's frozen surface with an indigo light, the only source of illumination on this now Triton's dark side. Fortuitous alignment of the Sun, Triton and Neptune causes this satellite's shadow to fall on Neptune's distant cloud tops 220 thousand miles away. This view is from within a deep, crater-like depression on Triton's northern hemisphere. . There are many such crater-like depressions on Triton's northern hemisphere. While these depressions look like impact craters, their similar size and spacing suggest that they were created by some other process. Their origin is still unknown, but may involve local melting and collapse of the icy surface. The scarcity of impact craters suggest that this surface is relatively young by solar system standards, probably less than a few billion years old. The depression in this image is about 15 miles in diameter; the ridge on the horizon is approximately seven miles from the mesa in the foreground.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept showing how Neptune might look from a position in space above the plane of its rings. Like Uranus, Neptune is a gas giant, composed primarily of hydrogen and helium gases surrounding a relatively small, dense core of molten rock and metal. Also like Uranus, Neptune has charcoal-colored rings, although they appear to be fewer in number than Uranus's. While Neptune's diameter is slightly less than Uranus', it has more mass. Neptune's blue color is due to the presence of methane in its upper atmosphere. The dark spot in the southern hemisphere beneath the rings, dubbed The Great Dark Spot, is believed to be a giant storm which was active in 1989 when Voyager 2 photographed Neptune. . . Just beyond the rings at Neptune's 7 o'clock position, barely discernable from the background stars, is the tiny satellite Proteus. With an average diameter of 260 miles, Proteus is the second-largest of Neptune's eight known satellites (a distant second compared to Neptune's largest satellite Triton which has a diameter of 1,677 miles). Further in toward the rings at Neptune's 4 o'clock position is the even smaller satellite Larissa with an average diameter of 120 miles.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist's concept showing how Neptune's Great Dark Spot and rings may have looked in 1989 from a position just beneath Neptune's ring plane. The outermost Adams ring is near the top of the frame, and beneath that is the much broader and diffuse Lassell ring. Further in toward Neptune and abutting the Lassell ring is the thin LeVerrier ring, and beyond that is the diffuse Galle ring. . The Great Dark Spot is believed to be a storm similar to, but only half the size of, Jupiter's Great Red Spot. While Jupiter's Great Red Spot has been raging for at least 400 years, subsequent observations of Neptune's Great Dark Spot in 1994 by the Hubble Space Telescope revealed that this storm has since disappeared. . The Great Dark Spot was a very dynamic weather system, generating massive, white clouds similar to high-altitude cirrus clouds on Earth. Unlike cirrus clouds on Earth however, which are composed of crystals of water ice, Neptune's cirrus clouds are made up of crystals of frozen methane. Neptune's clouds are driven by winds of 1,200 mph, the fastest winds of any planet in the Solar System. How such high-velocity winds come to be on a planet so far from the Sun is still a mystery.

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© Walter Myers / Stocktrek Images / Biosphoto

Artist' concept of Neptune and Earth. Neptune, a gas giant, is the planet furthest from the Sun. Neptune's diameter is four times that of the Earth's.

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© Steven Hobbs / Stocktrek Images / Biosphoto

A ringed planet, similar to Saturn, slices the skies of an alien moon. As the Saturn-like planet orbits far from its sun, the surface of this moon has patches of exotic methane frosts.

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© Steven Hobbs / Stocktrek Images / Biosphoto

A ringed planet, similar to Saturn, slices the skies of an alien moon. As the Saturn-like planet orbits far from its sun, the surface of this moon has patches of exotic methane frosts.

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© Ron Miller / Stocktrek Images / Biosphoto

A lake of liquid methane on Saturn's giant moon, Titan.

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© Frank Hettick / Stocktrek Images / Biosphoto

An astronaut is standing on the edge of a lake of liquid methane at the bottom of a large impact crater. Exploring the moon of a distant gaseous planet is a lonely and dangerous calling for a lone space traveler.

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© Frank Hettick / Stocktrek Images / Biosphoto

The ringed gas-giant Saturn floats some 1,220,000 kilometres in the background beyond Titan. The orange cloud-cover of Titan is made up almost entirely of nitrogen with traces of methane, ethane and other gases. Titan is the second largest satellite in the solar system with a diameter of 5150 kilometres. Beneath the heavy cloud cover lies a rock and ice surface with oceans of liquid methane. The Cassini-Huygens Probe landed January 18, 2005 on the rocky pebble-strewn terrain of Titan after sinking through miles-thick smog.

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© Fahad Sulehria / Stocktrek Images / Biosphoto

Saturn is seen here in the background from the enigmatic moon Titan, which is the second largest moon in the solar system, with a diameter of about 5 150 km. It has a highly thick, orange atmosphere that covers the entire surface. There are many different kinds of carbohydrates in the atmosphere, but nitrogen is the dominant substance. . . Here you see a lake of ethane, and some freshly fallen ice on the surface. In actuality the atmosphere is so thick you would not be able to see Saturn this clearly.

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© Fahad Sulehria / Stocktrek Images / Biosphoto

Titan's atmosphere is more thick and massive than Earth's. It contains mostly nitrogen and various hydrocarbons. The atmosphere is so thick that it blocks most sunlight from reaching the surface. When the Sun's ultrviolet rays hit the atmosphere, they break down the methane in the atmosphere into other hydrocarbons. This is also how the thick orange smog around Titan is created.

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© Elena Duvernay / Stocktrek Images / Biosphoto

Neptune and its rings against a starry background.

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© Jim West / imageBROKER / Biosphoto

A well collects methane gas, which is used to generate electricity, from decaying garbage at a landfill, Marshall, Michigan, USA

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