Subject line: study of the Sun and its phenomena

Responsibility of the mission: ESA/NASA

Date of launch: December 2nd, 1995

End of mission: ongoing



SOHO (Solar and Heliospheric Observatory) is a space telescope located 1,5 million kilometers away from Earth; it continuously monitors the Sun’s turbulent activity, restoring significant images and data of solar storms. Launched on December 2nd, 1995, from the Spaceport Florida Launch Complex 36, SOHO is often defined as the most important existing comet discoverer, since it discovered more than 2300 bodies in its over 20 years of operation. This skill is due to a privileged point of view, which allows the telescope to always keep the Sun and the objects approaching it under control. In fact, SOHO rotates along with the Earth around our star, in the L1 Lagrange point, where the combined gravities of the two bodies allows for an uninterrupted view of the Sun.

This choice allows the 12 on-board instruments to produce a huge amount of data and images, which are partly made public. In fact, the scientific community has been participating in the SOHO mission for many years, obtaining relevant results in the field of solar wind physics (for both the corona and the heliosphere).


Scientific goals

The probe carries on-board 12 scientific instruments; each of them is capable of observing independently the Sun, from the structure and dynamics of its internal part to the solar wind. In particular, the mission studies the temperature of the corona, the most external layer of the atmosphere

‣ News


Meeting of the Italian branch of CSES-Limadou satellite mission ‣

CSES-Limadou satellite mission is a collaboration between the Chinese and Italian Space Agencies also involving INFN, INAF, INGV, and CNR research Institutes as well as the Universities of Rome Tor Vergata, Turin and Trento MORE...


PRISMA and the Eye of the Sahara ‣

The image has been taken by the satellite of the Italian Space Agency on May 10, 2021 MORE...


DART Gets Its CubeSat Companion, Its Last Major Piece ‣

LICIACube has the important task of watching DART’s final maneuver a deliberate crash into an asteroid and its effects MORE...


ERMINe annual event on: The changing World ‣

5 - 7 October 2021 MORE...


The Italian Space Agency opened the doors to the “G20 Space Economy Leaders Meeting” ‣

The meeting between the G20 space agencies and the international organizations was opened by the Minister of Technological Innovation and Digital Transition with mandate for space affairs, Vittorio Colao, and the ASI president, Giorgio Saccoccia MORE...