NASA - the US space agency
RS - Royal Society
ESA - the European Space Agency.
RAS - the Royal Astronomical Society
MIST - the informal UK group for scientists studying the Magnetosphere, Ionosphere and Solar Terrestrial Physics.
AGU - the American Geophysical Union with the Space Physics and Aeronomy (SPA) Section, and the Planetary Sciences Section
EGU - European Geosciences Union
ISSI - the International Space Science Institute, located in Bern, Switzerland.
UK Solar Physics Group
UK goes to the Planets - Planetary missions with UK involvement
Sun Earth Plan - communicates the excitement of the UK's space research programme to the public.
SolarNews from the Solar Physics Division of the American Astronomical Society
UK Planetary Forum
STFC - the UK funding body whose remit includes space physics.
BNSC - the British National Space Centre