Archive for eastern Canada

NASA catches last image of Rafael as a hurricane, now merged with front


The Moderate Resolution Imaging Spectrometer (MODIS) instrument aboard NASA’s Terra captured a of Hurricane Rafael in the North Atlantic on Oct. 17 at 1440 UTC (10:40 a.m. EDT). Although Rafael was far from land, its northwestern fringe clouds were brushing Nova Scotia, Canada.

By 5 p.m. EDT on Oct. 17, Rafael had become extra-tropical, meaning that its core changed from a warm system to a cold system, just like a typical mid-latitude low pressure system. At that time, Rafael had near 75 mph (120 kph). It was centered near 40.2 North latitude and 56.5 West longitude, about 475 miles (750 km) southeast of Halifax, Nova Scotia, Canada. Rafael was moving to the northeast at 35 mph (56 kph). Turn toward the east-northeast with some increase in forward speed later today, Oct 18.

The National Hurricane Center noted that ocean swells generated by the cyclone are expected to affect the coast of eastern Canada during today and tomorrow. These swells are likely to cause life-threatening surf and .

By 5 p.m. EDT on Oct. 18, the cold front was found to be merged with the tropical cyclone, making it extra-tropical. Rafael is expected to complete a cyclonic loop around a deep-layer low over the north-central Atlantic day or two and ride into hurricane history.

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Article source: http://phys.org/news/2012-10-nasa-image-rafael-hurricane-merged.html

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Nasa’s greatest hits: Breathtaking time-lapse photography shows off our …

  • Footage captured across the world by astronauts since November and set to soundtrack Walking In The Air

By
Daily Mail Reporter

16:09 EST, 22 April 2012

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18:55 EST, 22 April 2012

Nasa has released a compilation of the best of its time-lapse photography from space – accompanied by a suitable theme tune.

To the haunting sounds of Walking In The Air, written by Howard Blake for the film The Snowman, the four-minute tape zooms over the earth’s surface from the International Space Station, shot by the Expedition 30 crew who boarded in November.

The breathtaking footage captured enchanting light displays and vivid weather systems across the globe in the last five months.

Scroll down for video

Switched on: The images, including this of Central Europe to the Middle East, were shot by Expedition 30 since they set up home in the International Space Station last November

Switched on: The images, including this of Central Europe to the Middle East, were shot by Expedition 30 since they set up home in the International Space Station last November

Heavenly: Comet Lovejoy captured on camera from the ISS when it tore across the sky in November

Heavenly: Comet Lovejoy captured on camera from the ISS when it tore across the sky in November

Among the extraordinary images was the Aurora Australis over the Indian Ocean, Comet Lovejoy streaking across the sky and storms over Africa.

Using a special low-light camera the group aboard the station captured the images at a height of 240 miles.

The International Space Station is home to astronauts from 15 countries and has operated 24-hours a day for the past decade.

Along with transmitting breathtaking imagery back to earth, the ISS conducts scientific research, answering the many unknowns about our universe.

The station’s purpose is to be a laboratory and observatory while acting as a staging base for possible future missions to the Moon, Mars and asteroids.

Time-lapse photography is a technique whereby the frequency at which the frames are captured is much lower than that at which they are played back.

Out of this world: Aurora Australis above the Indian Ocean casts an eerie glow over the world which the astronauts captured 240 miles up

Out of this world: Aurora Australis above the Indian Ocean casts an eerie glow over the world which the astronauts captured 240 miles up

Spaced out: The astronauts use their time on board the ISS to carry out research and beam stunning images of earth back home

Spaced out: The astronauts use their time on board the ISS to carry out research and beam stunning images of earth back home

When the images are played back at high speed, they give the sensation that the image is moving.

WHERE WERE THE IMAGES TAKEN?

:01 — Stars over southern United States
:08 — US west coast to Canada
:21 — Central Europe to the Middle East
:36 — Aurora Australis over the Indian Ocean
:54 — Storms over Africa
1:08 — Central United States
1:20 — Midwest United States
1:33 — United Kingdom to Baltic Sea
1:46 — Moonset
1:55 — Northern United States to Eastern Canada
2:12 — Aurora Australis over the Indian Ocean
2:32 — Comet Lovejoy
2:53 — Aurora Borealis over Hudson Bay
3:06 — United Kingdom to Central Europe

The pictures that we see from space are likely to improve in quality in the future after one astronaut  invented a specialised camera that solved the problem of taking pictures on board the craft which moves at more than four miles a second.

Andre Kuipers recently installed ‘Nightpod’ – a motorised camera that compensates for the hurtling speeds of the ISS, by tracking points on Earth’s surface. The results are some of the most spectacular pictures ever taken from space.

Astronauts aboard the International Space Station are regularly treated to a spectacular view of cities on Earth lit up at night – but the relative speed of the space station meant any pictures taken at night were blurred.

In late 2002 and early 2003, however, astronaut Don Pettit, part of Expedition 6, constructed a device called a barn-door tracker using spare parts from around the space station.

Just as they like taking pictures looking down on us from above, photographing the ISS has become a popular pastime.

Last year French astrophotographer Thierry Legault went to Oman to photograph the sun, moon and space station lined up.

Legault, who received the Marius Jacquemetton award from the Société astronomique de France in 1999, use websites that predicted when the ISS will pass in front of the Sun or Moon and what location those passes will be visible from.

Smart phone apps and certain websites use longitude and latitude data to show space enthusiasts when the ISS will be visible – if the weather conditions are agreeable. The station can been seen across the entire world except from in the extreme north and south.

Over African skies: Storms throw vivid displays as the space station floats above the continent

Over African skies: Storms throw vivid displays as the space station floats above the continent

Sparkling: Northern United States to Eastern Canada taken since by astronauts using time-lapse photography

Sparkling: Northern United States to Eastern Canada taken since by astronauts using time-lapse photography

Fly me to the moon: The footage was compiled by the astronauts to the soundtrack Walking In The Air

Fly me to the moon: The footage was compiled by the astronauts to the soundtrack Walking In The Air

Here’s what other readers have said. Why not add your thoughts,
or debate this issue live on our message boards.

The comments below have not been moderated.

Very nice to see the DM using the words “shows off” without following it by a reference to a woman’s body part

The picture above the moon picture isn’t Northern United States to Eastern Canada as claimed. It’s over London, UK looking towards Europe.

Too right, Bob; Michigan squarely in the middle, Chicago and Detroit are blazing.

The 1st picture is the Great Lakes, not Eastern Europe.

Cool video, but mute the choirboy falsetto music. Wish they did not add that to it.

informative… could you not work Kim Kardashian into this article?

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Article source: http://www.dailymail.co.uk/news/article-2133567/Nasas-greatest-hits-Breathtaking-time-lapse-photography-shows-beautiful-planet-International-Space-Station.html

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NASA’s Snowstorm Mission Wraps Up




NASA's DC-8 airborne science laboratory has returned to its base after completing the six-week GCPEx snowfall precipitation mission in eastern Canada.

NASA’s DC-8 airborne science laboratory has returned to its base after completing the six-week GCPEx snowfall precipitation mission in eastern Canada.
CREDIT: NASA


After spending more than 80 hours flying above wicked Canadian snowstorms, NASA’s DC-8 airborne lab has returned home.

The data-collecting flights were part of NASA’s snow study over Ontario, Canada, called the Global Precipitation Measurement Cold-season Precipitation Experiment, or GCPEx. The goal is to help scientists match measurements of snow in the air and on the ground with measurements to be taken by the Global Precipitation Measurement satellite, due to launch in 2014.

“The GCPEx mission has been a real success,” said study team member Walter Petersen, of NASA’s Wallops Flight Facility in Virginia, who has plenty of experience measuring snowfall.”The majority of the mission objectives were accomplished, especially as they pertain to collecting a broad spectrum of snowfall, mixed phase and even rain precipitation events.”

Barrie, Ontario

During the mission, the DC-8 flew above the clouds as a Cessna Citation from the University of North Dakota and a Convair 580 from the Canadian National Research Council flew through the clouds and measured the raindrops and snowflakes inside.

Article source: http://www.space.com/14762-nasa-snowstorm-mission-wraps.html

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