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CosmosUp | July 21, 2019

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Space Facts Mercury

By | On + -

Mercury is only the second hottest planets:
Despite being further from the Sun Venus experiences higher temperatures. The surface of Mercury which faces the Sun sees temperatures of up to 427°C, whilst on the alternate side this can be as low as -173°C. This is due to the planet having no atmosphere to help regulate the temperature.

Mercury is the most cratered planet in the Solar System:
Unlike many other planets which “self-heal” through natural geological processes, the surface of Mercury is covered in craters. These are caused by numerous encounters with asteroids and comets. Most Mercurian craters are named after famous writers and artists. Any crater larger than 250 kilometres in diameter is referred to as a Basin. The Caloris Basin is the largest impact crater on Mercury covering approximately 1,550 km in diameter and was discovered in 1974 by the Mariner 10 probe.


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Comments


  1. Badri

    Would be good if the equatorial diameter and the polar diameter were mentioned in kms


  2. TheGiant

    @badri
    It’s actually a simple problem you can anytime easily converts miles into kms.

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