  The Nancay Decameter Array (NDA) routinely observes low frequency (10-100
MHz) radio emissions of Jupiter and the Sun since 4 decades. The NDA
observations, acquired with a variety of receivers with increasing
performances, were the basis for numerous studies of jovian and solar radio
emissions and now form a unique long-term database spanning >3 solar cycles and
jovian revolutions. In addition, the NDA historically brought a fruitful
support to space-based radio observatories of the heliosphere, to
multi-wavelength analyses of solar activity and contributes to the development
of space weather services. After having summarized the NDA characteristics,
this article presents latest instrumental and database developments, some
recent scientific results and perspectives for the next decade.
