Clipmarks | Craters Clips

British Petroleum refutes claim that Russia attacked pipeline

Tue, 12 Aug 2008 02:07:24 GMT

clipped by: tommy2balmy
clipper's remarks: Interesting. BP no friend of the Russians

BP Said Russia’s Jets Didn’t Attack Oil Pipeline in Georgia

Spokesman of British Petroleum has refuted the allegation of Georgia about Russia’s air attacks on the oil pipeline.

According to Georgia, Russia’s jets unsuccessfully attacked Baku-Tbilisi-Ceyhan pipeline Saturday. They fired 51 missiles and explosion craters are seen at the distance of a few dozen meters from the facilities.

The thorough check didn’t reveal any traces of bombing in the pipeline area, said a representative of BP. Some employees of BP are still in Georgia but they will probably leave the country after the British Foreign Office urged all British residents to hasten out of it while the air traffic is available and the border is open.

Tags: russia, georgia, former soviet republic, georgian pipeline

NASA Mars Video -Images Show Water Flows & New Impact Craters

Thu, 07 Aug 2008 10:18:17 GMT

clipped by: bloowell

Clip Source: www.dailygalaxy.com

[Video]

Tags: mars, video

Mars: Stairs, Polygons, Dunes and Troughs

Sat, 02 Aug 2008 06:54:17 GMT

clipped by: JohnWaterman

Clip Source: www.universetoday.com

Meridiani Planum on Mars, where the Mars Rover Opportunity has been traversing the past four plus years, is not just covered with flat, endless plains. Of course, Opportunity has been entering and studying a few of the craters in the region. Here's a crater in Meridiani that's a whopper

This crater is so large that the HiRISE image is entirely within it, and the crater rim is not visible. The most prominent feature is layered sedimentary rocks that look like a grand stairway. These rocks have been eroded, most likely by wind, or possibly flowing water.

Click here for a full resolution picture of this area.

HiRISE also has taken some great images of the polygon features found in the high northern latitudes, that form from the ground seasonally freezing and thawing

polygons and a few dunes

This image is from an area

known as Elysium Planitia

just north of Mars’ equator

interesting geologic history

catastrophic floods of water

For more spectacular images, see the HiRISE website.

Tags: astronomy, hirise, mars, planets, solar system

This Olympics will be about taking part, rather than chasing medals..

Sat, 26 Jul 2008 14:29:06 GMT

clipped by: mugofcoffee
clipper's remarks: read this and pop this..I want the entire clip marks community to visit the site and read the full story of a girl with courage, persistence and determination!!!
This kid can change lives...amazing!

Clip Source: news.bbc.co.uk

Against the Odds: Samiya Yuusf Omar

Samiya, 16, says she has been pressured to stop competing

Mohamed Olad Hassan, in Mogadishu, met a young sprinter representing conflict-wracked Somalia.

Somali athlete Samiya Yuusf Omar is just 16-years-old. She comes from a destitute family with no breadwinner.

Militiamen in this Muslim country often prevent her from training, saying women should not take part in sport.

Samiya came last in her African championships heat

"Early in the morning... sometimes I come to a roadblock set up by either government troops along with Ethiopians or armed militia, who prevent me from going to the training," she added.

When she can get through, Samiya practises on a track full of mortar craters at the Mogadishu Stadium, almost destroyed by the years of war.

Somalia has been damaged by years of civil conflict and lawlessness

When she was named as part of Somalia's Olympic team earlier this year, the honour kindled her hopes for the future.

10 Greatest Major-Impact Craters on Earth

Wed, 23 Jul 2008 03:26:03 GMT

clipped by: amgumen

Clip Source: www.environmentalgraffiti.com

10. Barringer Crater, Arizona, US

9. Bosumtwi, Ghana

8. Deep Bay, Canada

7. Aorounga impact crater, Chad

6. Gosses Bluff, Australia

5. Mistastin Lake, Canada

4. Clearwater lakes, Canada

3. Kara-Kul, Tajikistan

2. Manicouagan, Canada

1. Chicxulub, Mexico

Buried underneath the Yucatán Peninsula in Mexico, near the Chicxulub village (which means “the tail of the devil” in Mayan), this ancient impact crater is simply huge at 105 miles (170km) in diameter. The impact happened roughly 65 million years ago when a comet or asteroid the size of a small city crashed (equivalent to 100 teratons of TNT) on Earth and caused destructive mega-tsunamis, earthquakes and volcanic eruptions around the globe.

The Chicxulub impact is widely believed to have led to the extinction of dinosaurs, because of a global firestorm or because of a dramatic and widespread greenhouse effect that caused long-term environmental changes.

An alien's eye view of the Earth

Sat, 19 Jul 2008 20:18:32 GMT

clipped by: einbar
clipper's remarks: "The Deep Impact spacecraft recorded the video, which shows the moon passing in front of the Earth, from more than 31 million miles away."

Clip Source: www.telegraph.co.uk

A Nasa spacecraft has taken the most detailed video footage yet of how the Earth would look to alien species, providing scientists with an insight into how they might be able to spot other planets that may be supporting life.

NASA video: Lunar transit of Earth

The Deep Impact spacecraft recorded the video, which shows the moon passing in front of the Earth, from more than 31 million miles away.

The images provide enough detail to see large craters on the moon along with the continents on the Earth behind. Michael A’Hearn, principal investigator for the Deep Impact extended mission, said: ““Making a video of Earth from so far away helps the search for other live-bearing planets in the Universe by giving insights into how a distant, Earth-like alien world would appear to us.”

A “sun glint” can also be seen in the movie – caused by the light reflected from the Earth’s ocean.

“Our video shows some specific features that are important for observations of Earth-like planets orbiting other stars.

Greatest Major-Impact Craters on Earth

Sat, 19 Jul 2008 18:38:11 GMT

clipped by: missjackson

Clip Source: www.environmentalgraffiti.com

10. Barringer Crater, Arizona, US

9. Bosumtwi, Ghana

8. Deep Bay, Canada

7. Aorounga impact crater, Chad

6. Gosses Bluff, Australia

5. Mistastin Lake, Canada

3. Kara-Kul, Tajikistan

2. Manicouagan, Canada

1. Chicxulub, Mexico

Ancient Mars Had Widespread Water, Potential To Support Life

Thu, 17 Jul 2008 00:21:53 GMT

clipped by: Silkweaver
clipper's remarks: "Our whole team is turning our findings into a list of sites where future missions could land to look for organic chemistry and perhaps determine whether life ever existed on Mars,” says APL’s Murchie.

Clip Source: www.sciencedaily.com

Mars once hosted vast lakes, flowing rivers and a variety of other wet environments that had the potential to support life, according to two new studies based on data from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) and other instruments on board NASA’s Mars Reconnaissance Orbiter (MRO).

The big surprise from these new results is how pervasive and long-lasting Mars' water was, and how diverse the wet environments were,

One study, published in the July 17 issue of Nature, shows that vast regions of the ancient highlands of Mars—which cover about half the planet—contain clay minerals, which can form only in the presence of water.

Volcanic lavas buried the clay-rich regions during subsequent, drier periods of the planet's history, but impact craters later exposed them at thousands of locations across the planet.

A companion study, published in the June 2 issue of Nature Geosciences, finds that the wet conditions persisted for a long time.

Tags: mars, space, space exploration

Planets Align for the 4th of July

Fri, 04 Jul 2008 15:45:26 GMT

clipped by: sahara

Clip Source: science.nasa.gov

July 1, 2008: News Flash: On 4th of July weekend, NASA forecasts lights in the sky.

No, not those lights. Look beyond the fireworks. Almost halfway up the western sky, just above the twilight glow of sunset, a trio of worlds is gathering: Saturn, Mars and the crescent Moon.

The show gets going on Friday, July 4th. Red Mars and ringed Saturn converge just to the left of the bright star Regulus. The three lights make a pretty 1st-magnitude line in the heavens: sky map.

But that is just the beginning. On Saturday, July 5th, with weekend fireworks at fever pitch, a lovely crescent Moon joins the show. Saturn, Mars, and the Moon trace an even brighter line than the night before: sky map.

Scan a small telescope along the line. You'll see Saturn's rings, the little red disk of Mars, a grand sweep of lunar mountains and craters, and just maybe—flash!—a manmade incendiary. How often do you see fireworks through a telescope?

Now that's spectacular—no fireworks required.

Tags: independence day, science, astronomy

Fire Under Arctic Ice: Volcanoes Have Been Blowing Their Tops In The Deep Ocean

Thu, 26 Jun 2008 14:33:59 GMT

clipped by: tabsey
clipper's remarks: Maybe all the shaking goes to the Shaky Isles, NZ

Clip Source: www.sciencedaily.com

A "lonely" seismometer drifts with the sea ice. (Credit: Vera Schlindwein, Alfred Wegener Institute)

Researchers found jagged, glassy rock fragments spread out over a 10 square kilometer (4 square mile) area around a series of small volcanic craters about 4,000 meters (2.5 miles) below the sea surface. The volcanoes lie along the Gakkel Ridge, a remote and mostly unexplored section of the mid-ocean ridge system that runs through the Arctic Ocean.

"These are the first pyroclastic deposits we've ever found in such deep water, at oppressive pressures that inhibit the formation of steam, and many people thought this was not possible," said WHOI geophysicist Rob Reves-Sohn, lead author and chief scientist for the Arctic Gakkel Vents Expedition (AGAVE) of July 2007. "This means that a tremendous blast of CO₂ was released into the water column during the explosive eruption."

Tags: i, don't, blow, my, top, if, not, noticed

Solstice Moon Illusion

Thu, 19 Jun 2008 17:14:14 GMT

clipped by: dewitte

Clip Source: science.nasa.gov

On Wednesday night, June 18th, step outside at sunset and look around. You'll see a giant form rising in the east. At first glance it looks like the full Moon. It has craters and seas and the face of a man, but this "moon" is strangely inflated. It's huge!

You've just experienced the Moon Illusion.

There's no better time to see it. The full Moon of June 18th is a "solstice moon", coming only two days before the beginning of northern summer. This is significant because the sun and full Moon are like kids on a see-saw; when one is high, the other is low. This week's high solstice sun gives us a low, horizon-hugging Moon and a strong Moon Illusion.

Tags: moon, solstice, astronomy, illusion

Solstice Moon Illusion

Tue, 17 Jun 2008 08:05:57 GMT

clipped by: HobbeLink
clipper's remarks: On Wednesday night, June 18th, step outside at sunset and look around. You'll see a giant form rising in the east. At first glance it looks like the full Moon. It has craters and seas and the face of a man, but this "moon" is strangely inflated. It's huge!

There's no better time to see it. The full Moon of June 18th is a "solstice moon", coming only two days before the beginning of northern summer. This is significant because the sun and full Moon are like kids on a see-saw; when one is high, the other is low. This week's high solstice sun gives us a low, horizon-hugging Moon and a strong Moon Illusion.

Clip Source: science.nasa.gov

Here Come the Asteroids

Wed, 14 May 2008 21:42:55 GMT

clipped by: Joshua Zumbrun
clipper's remarks: "The odds that a potentially devastating space rock will hit Earth this century may be as high as one in 10. So why isn’t NASA trying harder to prevent catastrophe?"

Guess it sort of puts this whole credit crisis thing in perspective, huh?

Clip Source: www.theatlantic.com

Breakthrough ideas have a way of seeming obvious in retrospect, and about a decade ago, a Columbia University geophysicist named Dallas Abbott had a breakthrough idea. She had been pondering the craters left by comets and asteroids that smashed into Earth. Geologists had counted them and concluded that space strikes are rare events and had occurred mainly during the era of primordial mists. But, Abbott realized, this deduction was based on the number of craters found on land—and because 70 percent of Earth’s surface is water, wouldn’t most space objects hit the sea? So she began searching for underwater craters caused by impacts rather than by other forces, such as volcanoes. What she has found is spine-chilling: evidence that several enormous asteroids or comets have slammed into our planet quite recently, in geologic terms. If Abbott is right, then you may be here today, reading this magazine, only because by sheer chance those objects struck the ocean rather than land.

Google unearths rare meteorite crater in Australia

Wed, 26 Mar 2008 22:33:43 GMT

clipped by: hotdoge3

Clip Source: www.stuff.co.nz

Google unearths rare meteorite crater in Australia

Measuring 260 metres wide and up to 30 metres deep, the divot is thought to be between 10,000 and 100,000 years old and was stumbled upon in the rich, rust coloured landscape of the Hamersley Ranges in Western Australia's Pilbara region.

According to the Earth Impact Database, a resource maintained by the Geological Survey of Canada and University of New Brunswick, only 173 such impact craters have been discovered in the world.

"I wasn't looking for it," Dr Hickman recalled in a telephone interview. "I was high up in Google Earth [the free program that enables users to scour the Earth using stitched together aerial and satellite images] when I spotted this little circular structure which struck me as odd."

Although the crater is situated about 1000 kilometres north-east of Perth and more than 300 kilometres south-east of Port Headland, it is only 35 kilometres north of the mining town of Newman in an area that has been previously surveyed.

A Correlated History of The Universe

Mon, 17 Mar 2008 12:52:26 GMT

clipped by: skwirlinator

Clip Source: www.wmnh.com

A Correlated History of The Universe

Folded map size 9"x4"

portable, includes both Correlated Histories of EARTH and MATTER

"A Correlated History of EARTH" now in 4th edition, includes plate tectonic maps, geostratigraphy, surface geology, ice ages, magnetic reversals, major volcanic flood basalts, orogenies, impact craters, classic sites, the fossil record, mass extinctions, genetic timescale...

WMPTP001 laminated wallchart 38"x 28"

"A Correlated History of Matter" extends the detailed timeline back to the big bang, includes fundamental particles and forces, periodic table of elements, table of earth minerals, table of earth rocks, meteorites, impact-generated rocks, breccias, shattercones, tektites, the K/T boundary clay, many color photos...

WMPTP002 laminated wallchart 38"x 28"

"A Correlated History of the UNIVERSE" portable, includes both Correlated Histories of EARTH and MATTER...

WMPTP000 folded map 9"x4"

Tags: science, theory, shopping, gift ideas