The initiative started with an event at the United Nations in Vienna. The Sun produces the solar wind – a stream of charged particles that blows across the planets of the solar system, including the Earth. Whilst the Earth’s magnetic field protects us from most of the effects of the solar wind, we still experience the consequences of massive events on the Sun, both as a threat to satellites and power systems and as the beautiful aurora seen at the poles.
International Heliophysical Year (IHY) is a multinational coordination effort both to raise awareness of the relationship between the Sun and the Earth and also to drive a programme of collaborative scientific research in this important field. The UK was one of the founding countries of IHY, and the science programme is being coordinated from the CCLRC Rutherford Appleton Laboratory in the UK.
To mark the launch of International Heliophysical Year, scientists have released the first dramatic images of a Coronal Mass Ejection taken with the UK-built HI cameras on the STEREO mission. Prof. Richard Harrison of the Rutherford Appleton Laboratory, Principal Investigator for the HI cameras and one of the original proposers of IHY said: “It is wonderful for the UK that we are able to deliver these first dramatic pictures right at the start of IHY”.
Dr Lucie Green of UCL’s Mullard Space Science Laboratory is outreach co-ordinator for IHY in the UK. She explains “Many people imagine the Sun to be a docile disc in the sky. In reality it is a seething fireball of high-energy explosions. Sometimes these explosions throw off huge clouds of debris, known as Coronal Mass Ejections (CMEs). These can be ejected in any direction, but some come directly towards the Earth, posing a threat to astronauts, satellites and even ground-based electricity distribution systems. The more we understand about the way the Sun relates to its environment, the better we can protect humanity from this ‘space weather’.”
Professor Keith Mason, Chief Executive of the Particle Physics and Astronomy Research Council said “2007 will be a significant year in developing our understanding of the Sun-Earth relationship. We will learn a great deal about the Sun from the recently launched Hinode and STEREO spacecraft and co-ordinate those results with what we see closer to home, with for example the 4 Cluster satellites studying the upper atmosphere and the EISCAT ground radar in Svalbard.”
NASA’s STEREO mission is starting to return data on the Sun and in the coming months will release unique panoramic views from the Sun to Earth as well as the first 3D images of the Sun ever. Today, scientists provided a teaser of what is to come, with pictures of a CME that erupted on 24th January 2007.
Another mission that will provide new data this year is NASA’s THEMIS mission to study the Aurora, successfully launched late on Friday 16th February.
During IHY scientists aim to use observations taken with Hinode and STEREO to learn more about CMEs. A new tool will be developed at the CCLRC Rutherford Appleton Laboratory that will allow the prediction of CMEs that are Earth directed. These CMEs are then tracked along their journey to the Earth using the STEREO spacecraft. The tool identifies regions that have dimmed as a result of the expelled material.
As part of IHY a new website is being launched that will draw together information on the UK’s research in this area in one place. The website will also have a special section containing Educational materials in the form of fact sheets, contacts and activity ideas. The activities aim to show students the science of the Sun-Earth connection and put across the knowledge that the Earth isn't an isolated object. Students will be able to look at real data and act out the role of scientist. The activities are about the science but they are also about how science is done.
Dr Jim Wild, the website co-ordinator from Lancaster University said: "Whether using satellites to study the heart of the sun or the sizzling radiation found in Saturn's magnetic field or ground-based cameras and radars to probe the northern lights high over the arctic circle, UK scientists are at the forefront of solar, solar-terrestrial and solar planetary science. The sunearthplan.net website will showcase this exciting science and provide a forum for visitors to directly question the scientists directly."
Julia Maddock | alfa
Enhancing the quantum sensing capabilities of diamond
23.11.2017 | The Hebrew University of Jerusalem
Quantum optics allows us to abandon expensive lasers in spectroscopy
22.11.2017 | Lomonosov Moscow State University
Heat from the friction of rocks caused by tidal forces could be the “engine” for the hydrothermal activity on Saturn's moon Enceladus. This presupposes that...
The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.
Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
23.11.2017 | Information Technology
23.11.2017 | Physics and Astronomy
23.11.2017 | Life Sciences