A solar eclipse occurs when the Moon blocks the light of the Sun from hitting Earth. The Sun is much larger than the Moon, but because the Sun is so much farther away, the Moon is able to fully block it during an eclipse.
We can see a solar eclipse from Earth because the Sun and Moon appear to be the same size in
The further away an object is, the smaller it appears.
NASA researchers learn new things by studying the Sun during a total solar eclipse.
This material is based upon work supported by NASA under cooperative agreement award number NNX16AC67A. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the view of the National Aeronautics and Space Administration (NASA).
The Science Museum of Minnesota