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Collision May Have Formed the Moon in Mere Hours

Billions of years ago, a version of our Earth that looks very different than the one we live on today was hit by an object about the size of Mars, called Theia – and out of that collision the Moon was formed. How exactly that formation occurred is a scientific puzzle researchers have studied for decades, without a conclusive answer.

Most theories claim the Moon formed out of the debris of this collision, coalescing in orbit over months or years. A new simulation puts forth a different theory – the Moon may have formed immediately, in a matter of hours, when material from the Earth and Theia was launched directly into orbit after the impact.

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The Early History of Human Excreta

As humans kept wandering, they fertilized places along the way—especially those “rest stops” where their clans chose to stay for a while. Some of these early humans may have even noticed that plants tended to grow bigger, better, and tastier in such rest stops. So, tribes made a point of coming back to those spots the next season, or even several years in a row—and then, one year some decided to just settle at those convenient spots. These early settlers brought us to the advent of farming.

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Airport Runway Names Shift with Magnetic Field

For example, the Fairbanks International Airport in Alaska renamed runway 1L-19R to 2L-20R in 2009 when magnetic north shifted enough to mandate a change. And the airport operators know—from NCEI’s World Magnetic Model (WMM) and other sources—that they’ll likely need to update the name again in 2033…

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Agrivoltaics: combining solar panel farms with agricultural farms

“Many of us want more renewable energy, but where do you put all of those panels? As solar installations grow, they tend to be out on the edges of cities, and this is historically where we have already been growing our food,”

“We started to ask, ‘Why not do both in the same place?’ And we have been growing crops like tomatoes, peppers, chard, kale, and herbs in the shade of solar panels ever since.”

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Lunar Eclipses – 2021-2030

Eclipses recur over the Saros cycle, a period of approximately 18 years 11 days.

The saros is a period of exactly 223 synodic months, approximately 6585.3211 days, or 18 years, 10, 11, or 12 days (depending on the number of leap years), and 8 hours, that can be used to predict eclipses of the Sun and Moon.

https://en.wikipedia.org/wiki/Saros_(astronomy)

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Panic at the Library

Though Huntington died in 1927, he intended his collection to live on long after him, but as the librarians discovered, the volumes were literally too full of life. The problem with assembling a massive collection of books is that you necessarily collect the very organisms that feed on books.