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Solar variability

The measurements made from space by the HF/NIMBUS, ACRIM/SMM-UARS, VIRGO/SoHO radiometers, during the last three activity cycles, have shown that the total solar radiation varies in phase with the magnetic activity of the Sun. The study of phenomena that determine the variability of the Sun, and the acquisition of data useful for its study, are carried out by INAF, in collaboration with research groups at the Universities of Rome "Tor Vergata" and Calabria, and the INGV-Rome.

ALMA WITNESSES STAR BIRTH BEYOND THE EDGES OF THE MILKY WAY

Apr 22, 2026

ALMA WITNESSES STAR BIRTH BEYOND THE EDGES OF THE MILKY WAY A new study, led by INAF, has mapped, for the first time, the mass distribution of newly formed cores in the Large Magellanic Cloud. Thanks to high-resolution images from ALMA, it has emerged that these cores form according to the same patterns observed in the Milky Way. The result suggests that the initial fragmentation mechanisms of gas and dust clumps, from which stars are born, are universal and independent of the galactic environment.

CALVERA EXPLODED WHERE IT SHOULDN’T HAVE: A “RUNAWAY” PULSAR DEFIES THE RULES OF THE MILKY WAY

Aug 29, 2025

CALVERA EXPLODED WHERE IT SHOULDN’T HAVE: A “RUNAWAY” PULSAR DEFIES THE RULES OF THE MILKY WAY A stellar explosion, a pulsar, and a supernova remnant - that’s the story of Calvera. Positioned more than 6,500 light-years above the Galactic plane, this system is rewriting what we know about stellar evolution in our galaxy. The research originates from a team at the Italian National Institute for Astrophysics (INAF), in collaboration with the University of Palermo, and is detailed in a study published in Astronomy & Astrophysics