Volcano Photo Reveals Shock Wave

Sarychev Peak on Matua Island is one of the most active volcanoes in the Kuril Island chain, northeast of Japan. Astronauts took this photo of an eruption on June 12. The plume appears to be a combination of brown ash and white steam. The vigorously rising plume gives the steam a bubble-like appearance; the surrounding atmosphere has been shoved up by the shock wave of the eruption. Credit: NASA/ISS/Earth Observatory

Amazing new picture from space reveals a volcanic eruption in its earliest stage, with a huge plume of ash and steam billowing skyward and creating a shock wave in the atmosphere.The new photo was taken June 12 from the International Space Station. NASA says volcano researchers are excited about the picture “because it captures several phenomena that occur during the earliest stages of an explosive volcanic eruption.”

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Vietnam will Launch Second Man Made Satellite In 2012

Vietnam will launch the country’s second man-made satellite in 2012.The satellite, called VNREDSat-1, is of small size and low orbit. It will be used to monitor and take picture of the earth surface of different sizes and types and provide those pictures to centers gathering earth-surface satellite pictures.

Vietnam is expected to spend about 60 to 70 million U.S. dollars on the launching project, including expenses for manufacturing and launching satellite, building controlling center, and training human resources.

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Japan andIndia Will Grow Algae in Space

Japan and India plan to launch their first joint space research project this year, an experiment in growing plants in zero gravity, said a Japan Aerospace Exploration Agency researcher. The two Asian powers are set to launch a small and unmanned Indian-made satellite in October, carrying Japanese laboratory equipment, which is set to orbit for about one week at a height of around 600 kilometers (370 miles). Aboard the satellite they will seek to grow a type of algae(Spirulna), said Noriaki Ishioka, a professor for Japan’s space agency JAXA, who called the experiment “a basic study on photosynthetic activity in space.” “We will retrieve the satellite after a week or so and conduct genetic examinations on how the zero-gravity environment affects photosynthesis.” Japan already sends astronauts to the International Space Station and has conducted several space experiments in its Kibo laboratory. But the joint project with the Indian Space Research Organisation aims to allow Japan to diversify its channels for space research.

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Sunday:The Longest Day of the Year

If you’ve been waiting for the chance to get more done during the day, Sunday was your day, but only by a fraction of a second. Like a giant timepiece, Earth and sun are configured for the summer solstice once again. This year it happens June 21, the longest day of the year in the Northern Hemisphere. The sun will be up a fraction of a second longer than the day prior or the day after. (The length of the full day, including night, does not change, of course.) Our planet is tilted 23.5 degrees on its spin axis. On June 21 this year (some years it’s June 20), the North Pole is pointing toward the sun as much as is possible.

On or around June 21 each year, the rays of the sun is perpendicular to the Tropic of Cancer at 23°30′ North latitude. This day is the summer solstice in the Northern Hemisphere.

On this day, the earth’s “circle of illumination” will be from the Arctic Circle on the far side of the earth (in relation to the sun) to the Antarctic Circle on the near side of the earth. The equator receives twelve hours of daylight, there’s 24 hours of daylight at the North Pole and areas north of 66°30′ N, and there’s 24 hours of darkness at the South Pole and areas south of 66°30′ S.June 20-21 is start of summer in the Northern Hemisphere but simultaneously the start of winter in the Southern Hemisphere. It’s also the longest day of sunlight for places in the Northern Hemisphere and the shortest day for cities south of the equator.

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The Longest Day of the Year (About.com:Geography)

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