Saturday 27 March 2021

Well, That's OK Then?

Apophis is a small (it's about 340m across) asteroid. NASA scientists have ruled out it colliding with the Earth, for at least 100 years (https://www.theguardian.com/science/2021/mar/27/much-feared-asteroid-apophis-wont-hit-earth-for-at-least-100-years-nasa-says). Apophis is due to come within 32,000 km of our planet on Friday 13th (how spooky is that?) April 2029. At that time, Apophis will be within 1/10th of our distance to the moon. What comes around, goes around. And Apophis comes near the Earth on a regular basis. Davide Farnocchia of NASA now says the latest data on Apophis's orbit, rules out a strike in 2068. After that, things are more uncertain. One less thing to worry about?

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What's In a Critter's Name? 11. Comma butterfly

The Comma butterfly ( Polygonia c-album) gets its name from the punctuation-like mark, on the underside of its wings.