Another solar explosion after Tuesday's enormous flare
EUROPEAN SPACE AGENCY NEWS RELEASE
Posted: October 30, 2003
Since Tuesday, explosive events originating from the Sun have been bathing the Earth and its surroundings in high energy radiation. Although 150 million kilometers away, the Sun is still capable of causing major disruption here on Earth to a range of systems that we depend on in everyday life. These include communication and navigation systems, aircraft and spacecraft operations and the distribution of electricity at high latitudes.
These events are truly sporadic and extremely difficult to predict. On Wednesday it appeared that radiation levels were decreasing. However, a second flare overnight has caused a further sharp increase in radiation levels. Here on Earth, the disruption continues today with a further coronal mass ejection expected to reach the Earth tomorrow in time for Halloween.
Solar eruptions of this type together with the associated increased radiation levels and electromagnetic disturbances around the Earth have real immediate and long-term economic impacts. During the last few days, space weather related problems have been detected on spacecraft operated by a range of agencies across the globe and operations teams are on alert. On Earth, telecommunication links have been disrupted and steps have been taken to safeguard aircraft, which including some changes in scheduling. Effects have also been detected in high latitude power grids and are being carefully monitored.
The increased dependency of our society on systems which are directly or indirectly influenced by solar and other events seen in space raises concerns about our ability to monitor and anticipate these events and the resulting changes collectively referred to as space weather. At the European Space Agency these issues are being handled jointly in the Electromagnetics and Space Environment Division by Dr Eamonn Dalyís group for the specifications of spacecraft protection and in the spacecraft operations teams.
In addition, Europe-wide coordination is currently being set up together with the European Union via its COST (Coordination in Science and Technology) programme and ESAís General Studies Programme. This coordination aims to optimise our existing resources (together with our international partners) in order to develop an operational resource which will enable society to respond effectively to immediate as well as long-term changes in our space weather.
Bring the beauty and majesty of the universe to your home, direct from the Hubble Space Telescope, with this DVD.
U.K. & WORLDWIDE STORE