One of the many outcomes of the Solar Orbiter mission is the evidence for the solar
atmosphere being filled by highly impulsive bursts, down to ≈ 200 km scale: the limit of the
EUV instruments' spatial resolution. Small-scale events of this kind were already known, but
their observation was occasional or with limited, lower resolution. Their similarity with
known larger features, are the witnesses that the physical processes causing them are
independent of the spatial scales involved.
Their highly dynamic property is the signature of energy transfer and/or local dissipation.
Their investigation can thus elucidate on the dominant physical processes acting on the solar
atmosphere and on the possible role in the origin of the hot solar corona.
This work reviews the observational and simulation results on this topic, led by the results
from data taken by the The Extreme Ultraviolet Imager (EUI)/High Resolution Imagers
(HRIEUV) instrument. Here, we will cover both statistical properties and analyses of
individual events.