Solar eclipse of March 9, 1997
Encyclopedia
A total solar eclipse
Solar eclipse
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially blocks the Sun as viewed from a location on Earth. This can happen only during a new moon, when the Sun and the Moon are in conjunction as seen from Earth. At least...

 occurred on March 9, 1997.

Unusual gravity variations

This solar eclipse is somewhat special in the sense that some unexplained gravity anomalies of about 7 10{-8} m/s2 during the solar eclipse were observed. Attempts (e.g., Van Flandern-Yang hypothesis
Van Flandern-Yang hypothesis
The van Flandern-Yang hypothesis is the theory attempting to explain theunusual anomalies of about 7 m/s2 observed in theSolar eclipse of March 9, 1997. This hypothesis conjectures that the gravity anomalies are due to a travelling density spot in the upper atmosphere caused by the cooling during...

) to explain these anomalies have not been able to reach a definite conclusion.

External links

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