ISAF World Sailing Rankings – 29 April 2013

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Monday 29 April 2013

The ISAF World Sailing Rankings for 29 April 2013 have been released.

• Fifteen countries take 30 of the top three ranking positions
• Consistent 12-month period for Alonso brothers gives them World #1 spot in the 49er
• Mat Belcher and Will Ryan march on with perfect ranking score
• Kiwis regain World #1 49erFX spot

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Eye of the storm

Saturm-Colour-coded view of hurricane node full image

Title Colour-coded view of hurricane
Released 29/04/2013 5:00 pm
Copyright NASA/JPL-Caltech/SSI
Description

A hurricane, spanning some 2000 km, has been identified at the heart of Saturn’s hexagonal jet stream at the planet’s north pole by the international Cassini spacecraft.

The images were taken with Cassini’s wide-angle camera using a combination of spectral filters sensitive to wavelengths of near-infrared light. The images filtered at 890 nanometres are projected as blue. The images filtered at 728 nanometres are projected as green, and images filtered at 752 nanometres are projected as red. The colours correspond to different altitudes in Saturn’s polar atmosphere: red indicates deep, while green shows clouds that are higher in altitude.

The eye of the storm appears dark red while the fast-moving hexagonal jet stream framing it is a yellowish green. Low-lying clouds circling inside the hexagonal feature appear as muted orange colour. A second, smaller vortex pops out in teal at the lower right of the image.

The rings of Saturn appear in vivid blue at the top right in this colour scheme.

The image was captured by Cassini from a distance of about 419 000 km from Saturn on 27 November 2012, at a Sun-Saturn-spacecraft angle (phase angle) of 94 degrees. Image scale is 22 kilometres per pixel.

29 April 2013

The international Cassini spacecraft has found a powerful hurricane at Saturn’s north pole, surrounded by the curious rotating hexagonal band of clouds.

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Herschel closes its eyes on the Universe

Ali Hussain in lab node full image

Title Herschel and Vela C
Released 15/03/2013 12:00 pm
Copyright ESA/PACS & SPIRE Consortia, T. Hill, F. Motte, Laboratoire AIM Paris-Saclay, CEA/IRFU – CNRS/INSU – Uni. Paris Diderot, HOBYS Key Programme Consortium
Description

ESA’s Herschel space observatory set against a background image of the Vela C star-forming region. The image shows both high- and low-mass star formation at a range of evolutionary stages, from cool filaments, pre-stellar cores and protostars to more evolved regions containing dust that has been gently heated by hot stars.

The image was mapped using Herschel instruments PACS and SPIRE at wavelengths of 70, 160 and 250 microns, corresponding to the blue, green and red channels, respectively. North is to the right and east is up.

29 April 2013

ESA’s Herschel space observatory has exhausted its supply of liquid helium coolant, ending more than three years of pioneering observations of the cool Universe.

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NASA Probe Gets Close-Up Views of Large Hurricane on Saturn

Saturn-744802main pia14944-43 226-170

The spinning vortex of Saturn’s north polar storm resembles a deep red rose of giant proportions surrounded by green foliage in this false-color image from NASA’s Cassini spacecraft. Image credit: NASA/JPL-Caltech/SSI

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The north pole of Saturn, in the fresh light of spring, is revealed in this color image from NASA’s Cassini spacecraft. Image credit: NASA/JPL-Caltech/SSI

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This spectacular, vertigo inducing, false-color image from NASA’s Cassini mission highlights the storms at Saturn’s north pole. Image credit: NASA/JPL-Caltech/SSI

WASHINGTON — NASA’s Cassini spacecraft has provided scientists the first close-up, visible-light views of a behemoth hurricane swirling around Saturn’s north pole.

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