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  1. Jan 2

    ** MERRY PERIHELION ** Overnight January 2 / 3, Earth at Perihelion: The closest distance to the Sun in our annual elliptical (oval-shaped) orbit. If you see astrophysicists dancing in the streets, this is why. Fan-designed tee shirt.

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  2. Jan 1

    *** HELLO, HELLO! *** January 1, 2019. The spacecraft, launched in January 2006, encounters 20km wide Kuiper-Belt comet 2014-MU69, the farthest object we’ve ever seen close up. Nicknamed “Ultima Thule,” a Medieval reference to “Beyond Known Lands.”

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  3. Dec 31

    HAPPY NEW YEAR on the Gregorian Calendar. January 1. An annually recurring day that carries no scientific significance whatsoever. Roman Coin: The god Janus, looking forward & backwards, after whom the month of January was named.

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  4. ***Happy Kwanzaa*** December 26 thru January 1. Dating from 1966, seven days that commemorate and celebrate the African Diaspora. Kwanzaa translates from Swahili to “First Fruits of the Harvest”.

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  5. Santa Knows Physics: Of all colors, Red light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig.

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  6. HAPPY BIRTHDAY Isaac Newton Born December 25, 1642 (on the Julian Calendar in use at the time in England) who, by the age of 30, would transform civilization, showing that the universe was mathematically knowable and predictable. Art: Godfrey Kneller (1689)

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  7. HAPPY GOLDEN ANNIVERSARY December 24, 2018. Fifty years ago, Apollo 8 entered Lunar Orbit, carrying the first humans ever to reach the Moon: Frank Borman, Jim Lovell, Bill Anders. Bearing witness to Earthrise, they read in turn, the first ten verses of Genesis from the KJV Bible.

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  8. ***HAPPY SOLSTICE*** December 21 [5:23pm ET] Latin for “Stationary Sun,” when our star's path across the sky, which had been shifting by the day, halts its progression and reverses. Image:

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  9. **HAPPY SATURNALIA** December 17-23. Predating the birth of Jesus by centuries, this Ancient Roman celebration, in honor of the God Saturn, is marked by parties, gift-giving, and role reversals.

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  11. SCIENCE IN FILM -- One hundred and fifty thousand people voted, with 86% in favor of me bringing back such commentary to my Twitter postings. 12% don't care. So I will continue, and brave the negative vibes of the 2% who voted no. Lots to catch up on...

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  12. Scientists & engineers launched “InSight” from Earth (a moving platform) across 300million miles to arrive where Mars (a moving target) will be seven months later, landing safely to do geophysics at the Martian equator. And you have a problem listening to us about climate change?

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  13. Albert Einstein was a refugee to the USA.

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  14. The pudgy, lovable, mildly creepy, microscopic Tardigrade “WaterBear” would make a most excellent Thanksgiving Day Parade balloon.

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  16. With the Kilogram now re-defined using physical constants by the International Bureau of Weights & Measures, the time has come to update and formalize America’s Vulgar units of Mass:

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  17. As an astrophysicist, I know how and why the Sun generates energy in its core. But I nontheless well-up at the sight of a majestic sunset, which brings out the poet in us all. (“12 Apostles" rock formation. Great Oean Road, Australia. Aug 2015)

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  18. Born before Edwin Hubble discovered the expanding universe, he ultimately created an expanding universe of his own - one of scientifically literate superheroes such as Spider-Man , The Hulk, Iron Man, & Black Panther. Stan Lee RIP: 1922 - 2018

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  19. Afraid of lethal disease? If you do the Math, during the two years of the 1918 Flu Pandemic nearly 3,000 people died **per hour** of the H1N1 virus.

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  20. FYI: After WWI ended, 100 years ago today, a scattered epidemic of the Spanish Flu became a pandemic, as millions of soldiers shipped home, spreading the disease internationally, killing an additional 50-million people worldwide.

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