  In this brief review we discuss the possibility of studying the solar
interior by means of neutrinos, in the light of the enormous progress of
neutrino physics in the last few years. The temperature near the solar center
can be extracted from Boron neutrino experiments as: $ T= (1.57 \pm 0.01) 10^7
K$. The energy production rate in the Sun from pp chain and CNO cycle, as
deduced from neutrino measurements, agrees with the observed solar luminosity
to about twenty per cent. Progress in extracting astrophysical information from
solar neutrinos requires improvement in the measurements of $^3He+$ \\$^4He \to
^7Be+\gamma$ and $p+^{14}N \to ^{15}O+ \gamma$.
