Astronomers have just made a discovery that although may seem small, has significant implications for our solar system as well as others:

By analyzing data collected by NASA’s MESSENGER spacecraft, scientists have found that, on average, Mercury spins on its axis 9 seconds faster than had previously been anticipated.

The precise measurement of the rotation allows planetary researchers to draw conclusions about Mercury’s internal structure and development. The strength of the periodic fluctuation of the rotational speed with respect to the average value was also measured.

Let’s find out why they think this might be happening on page 2

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