  Spicules are rapidly evolving fine-scale jets of magnetized plasma in the
solar chromosphere. It remains unclear how these prevalent jets originate from
the solar surface and what role they play in heating the solar atmosphere.
Using the Goode Solar Telescope at the Big Bear Solar Observatory, we observed
spicules emerging within minutes of the appearance of opposite-polarity
magnetic flux around dominant-polarity magnetic field concentrations. Data from
the Solar Dynamics Observatory showed subsequent heating of the adjacent
corona. The dynamic interaction of magnetic fields (likely due to magnetic
reconnection) in the partially ionized lower solar atmosphere appears to
generate these spicules and heat the upper solar atmosphere.
