list of NASAmissions, both crewed and robotic, since the establishment of NASA in 1957. There are over 80 currently active science missions. Since 1945
strategic mission in development by NASA. NASA continues to play a material role in exploration of the Solar System as it has for decades. Ongoing missions have
the Hathaway/NASA/MSFC graph above). The dipolar component of the solar magnetic field reverses polarity around the time of solarmaximum and reaches peak