Some useful links

Web of Science

European Space Agency (ESA)

ESA science programme

National Aeronautics & Space Administration (NASA)

The Particle Physics and Astronomy Research Council

The Royal Society

Royal Astronomical Society

International Solar Terrestrial Physics (ISTP)

Magnetosphere Ionosphere & Solar-Terrestrial (MIST)

American Geophysical Union (AGU)

Satellite Situation Center

Space Physics Data facility

SPace ENVironment Information System

SWRI Space Physics Resources

Physical Units for Particle Measurements

Oulu Space Physics Textbook

Today's space weather