Royal Observatory Greenwich blog
Join the hunt for solar storms
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February 23rd, 2010

Solar Stormwatch screenshot23 Feb 2010 – the Royal Observatory, Greenwich, in partnership with Zooniverse and Rutherford Appleton Laboratory, today launched Solar Stormwatch. This exciting web project allows anyone to help spot explosions on the Sun and track them across space to Earth. If you get involved your
work will help give astronauts an early warning if dangerous solar radiation
is headed their way – and you could make a new scientific discovery.

Artist's impression of the deployment of the STEREO spacecraft panels (NASA/Johns Hopkins University Applied Physics Laboratory)Solar Stormwatch uses archive and near real-time data from NASA’s STEREO mission, a pair of spacecraft orbiting the Sun. Each spacecraft carries a Heliospheric Imager (HI) containing two cameras, creating a massive field of view stretching across the 150 million km from the Sun back to the Earth. Mission volunteers will be looking at these images to spot huge explosions from the Sun’s surface – these are the solar storms, or more technically Coronal Mass Ejections (CMEs). These storms throw out about a billion tons of hot solar gases at a million miles an hour, representing a serious radiation hazard to both spacecraft and astronauts. They can knock out communication satellites, disrupt sat nav and mobile phone networks and damage power lines. Solar Stormwatch will help minimise this disruption by providing real-time alerts to those in the firing line, such as the crew of the International Space Station.

Coronal mass ejection taken by the SOHO spacecraft, 2002 (SOHO, NASA and ESA)Multiple volunteers will look at each batch of STEREO data, and and if several independently confirm an interesting find it will be flagged up to a solar scientist.

Chris Davis, one of the solar scientists on the project team, says: “With your help, we can analyse many more events and do so in a way that
is free of the subjective bias introduced by one person sat in his
office making arbitrary decisions… Together we can use STEREO images to learn what it takes to
make an accurate forecast of space weather conditions. Space
exploration will always be a risky business but with an accurate
space-weather forecast, astronauts will have one less thing to be
worrying about as they leave the relative safety of Earth orbit and
start to explore our solar system.”

You can get involved now at www.solarstormwatch.com

Images: Artist’s impression of the deployment of the STEREO spacecrafts’ solar panels (NASA/Johns Hopkins University Applied Physics Laboratory); Coronal mass ejection taken by the SOHO spacecraft, 2002 (SOHO, NASA and ESA)

Space shuttle Endeavour docks with ISS
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February 11th, 2010

Space shuttle Endeavour lift-off, 8 Feb 2010 (NASA)NASA’s space shuttle Endeavour docked with the International Space Station (ISS) at 23:06 CST on Tuesday 9 February, towards the end of day 2 of mission STS-130. Endeavour’s primary payload on this mission consists of a third connecting module for the station, the Tranquility node, and a seven-windowed cupola which will be used as a control room for robotics, intended to increase human understanding of our planet.

STS-130, the 32nd shuttle mission to the ISS, is led by Commander George Zamka and piloted by Terry Virts. Endeavour’s launch at 3:14 CST on Monday was NASA’s last ever scheduled space shuttle night launch.

The mission is scheduled to last for a total of 14 days from launch to landing back at the Kennedy Space Center in Florida.

Image: Space shuttle Endeavour emerges from behind its exhaust plume as it
lifts off from Launch Pad 39A at the Kennedy Space Center at 4:14 a.m. EST, 8 Feb 2010. (NASA/ Kenny Allen)

Solar Dynamics Observatory launch
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February 9th, 2010

SDO_Logo_glassy_sm.pngNASA’s Solar Dynamics Observatory (SDO) is currently scheduled for launch tomorrow (10 February 2010) from the Kennedy Space Center in Cape Canaveral.

NB launch actually took place on Thursday 11 February, 10:23 EST (15:23 GMT).

SDO is a powerful solar observatory which will look deep into the Sun and record images at 10 times higher resolution than HDTV. It is the first mission to be launched for NASA’s Living With a Star (LWS) Program, designed to understand the causes of solar variability and its impacts on Earth. It is hoped that it will reveal how solar storms erupt, help us understand the Sun’s influence on Earth and Near-Earth space and also help scientists build effective models for space weather forecasting.

The SDO spacecraft will orbit the Earth at a distance of about 22,300 miles, relaying its readings instantly to a ground station in New
Mexico.

Image: Artist’s impression of SDO (NASA)

ROG launches Solar Season
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February 8th, 2010

Solar Season posterThe Royal Observatory, Greenwich has just launched Solar Season, running until 9 May.

Come
and see the Sun in a whole new light with new exhibition Solar Story, planetarium
show Secrets of the Sun and a programme of talks, tours and workshops. Speakers include solar physicist Dr Lucie Green and ROG Curator for the History of Science and Technology Dr Rebekah Higgitt.