EST, European Solar Telescope, is a pan-european project, presently in its Conceptual Design Study financed by the European Commission, involving 29 partners, plus 7 collaborating institutions, from 14 different countries.

Universita` di Roma Tor vergata  is one of the partners forming part of technical studies for the Conceptual Design of EST.

The ADAHELI (Advanced Astronomy for HELIOphysics) small mission is an Italian project for the investigation of solar activity and dynamics proposed in the framework of ASI (Italian Space Agency) Small Missions Program call.

Recently the Italian Space Agency funded a Phase A study for the realization of the solar satellite ADAHELI in response to a proposal by Francesco Berrilli of our Solar and Space Physics Team. Some of the scientists of this group participated in the past to several missions (NASA, ESA, ASI) to study the solar wind, the interplanetary electron density, solar and galactic cosmic rays, and the interplanetary magnetic field.

We like to recall very briefly the outline of these activities.