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Straight Line of the Day: Apparently the Earth gains tons of dust from space each year. It goes…
Earth Gains 5,200 Tons of Dust From Space Every Year
UniverseToday.com | 04/13/2021 | Nancy AtkinsonWhenever I wipe the dust off my coffee table or catch a glimpse of dust motes floating in sunlight, my spacey mind always wonders, is any of that cosmic dust? It just might be. But the amount of space dust that lands on our planet every year might surprise you.
Scientists have long known that there is annual flux of extraterrestrial material deposited on Earth, which mainly comes in the form of tiny particles, primarily from comets and asteroids. These sub-millimeter-sized dust grains are the ones that can make it down through our atmosphere unscathed.
But the exact amount has never been calculated, due to the difficulty in collecting and monitoring this dust. The biggest issue is that Earth itself and the atmosphere are dusty places, so if you’re collecting dust, how do you discern between Earth dust and space dust?
First week is in the books.
Results
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Standings
| Contestants | Record | Total Point |
|---|---|---|
| Katherine Ross | 1 – 0 – 0 | 142 |
| Grace Kelly | 1 – 0 – 0 | 118 |
| Joan Severance | 1 – 0 – 0 | 107 |
| Morena Baccarin | 1 – 0 – 0 | 103 |
| Michelle Pfeiffer | 0 – 1 – 0 | 99 |
| Evangeline Lilly | 0 – 1 – 0 | 91 |
| Shakira | 0 – 1 – 0 | 86 |
| Jane Seymour | 0 – 1 – 0 | 63 |
This week’s matches
All polls close on Sunday April 25th at 9:00 am.
