One Cool Thing: Mercury Transiting the Sun in 4K

ICYMI, on Monday the planet Mercury made one of its rare appearances transiting the Sun.  It won’t do that again until 2032, and that one won’t be visible in the U.S.  It was super hard to see, but NASA’s Solar Dynamics Observatory (SDO) had several special cameras filming it and on Wednesday they released a new video showing the transit in gorgeous 4K.  The video shows Mercury (the smallest planet — the one closest to the sun) passing in front the Sun using a variety of different imaging tools, in a variety of wavelengths, and through the SDO’s various filters.  And there is also the still photo below that The Washington Post ran of Mercury passing in front of the sun as seen in DC with the Washington Monument in relief.  Mercury is the tiny dot just above the peak of the monument.

Photo: Bill Ingalls, NASA via AP

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One Cool Thing: NASA Needs YOU — To Name Its New Rover

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Not Wanting to Miss a Thing, ESA is Officially On-Board to Blast Asteroids with NASA

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One Huge Thing: The Universe — How Big Is It?

One Huge Thing: The Universe — How Big Is It?

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