New Theory Offers Totally New Explanation of the Moon’s Origin

0
529
New Theory Offers Totally New Explanation of the Moon's Origin
New Theory Offers Totally New Explanation of the Moon's Origin

Coronavirus USA news live: Latest updates

334,125
Confirmed
9,557
Deaths
17,177
Recovered
New Theory Offers Totally New Explanation of the Moon's Origin
New Theory Offers Totally New Explanation of the Moon’s Origin

Researchers have a crazy new theory about the origin of the Moon.

A new explanation for the moon’s origin has it forming inside the Earth when our planet was a seething, spinning cloud of vaporized rock, called a synestia. The new model led by researchers at the University of California, Davis, and Harvard University resolves several problems in lunar formation and is published Feb. 28 in the Journal of Geophysical Research – Planets.

“The new work explains features of the moon that are hard to resolve with current ideas,” said Sarah Stewart, professor of earth and planetary sciences at UC Davis.

“The moon is chemically almost the same as the Earth, but with some differences,” she said. “This is the first model that can match the pattern of the moon’s composition.”

Coronavirus live updates:
Country Confirmed Deaths Recovered
USA 334,125 9,557 17,177
Spain 131,646 12,641 38,080
Italy 128,948 15,887 21,815
Germany 100,024 1,576 28,700
France 92,839 8,078 16,183
Iran 58,226 3,603 19,736
UK 47,806 4,934 135
Turkey 27,069 574 1,042
Switzerland 21,100 715 6,415
Belgium 19,691 1,447 3,751
Netherlands 17,851 1,766 250
Canada 15,425 277 2,847
Austria 12,051 204 2,998
Portugal 11,278 295 75
Brazil 11,130 486 127
S. Korea 10,237 183 6,463
Israel 8,430 49 477
Sweden 6,830 401 205
Norway 5,687 71 32
Australia 5,687 35 2,315
Russia 5,389 45 355
Ireland 4,994 158 25
Czechia 4,543 67 96
Chile 4,471 34 618
Denmark 4,369 179 1,327
Poland 4,102 94 134
Romania 3,864 151 374
Malaysia 3,662 61 1,005
Ecuador 3,646 180 100
India 3,588 99 229
Philippines 3,246 152 64
Pakistan 3,157 47 211
Japan 3,139 77 514
Luxembourg 2,804 36 500
Saudi Arabia 2,402 34 488
Peru 2,281 83 989
Indonesia 2,273 198 164
Thailand 2,169 23 793
Finland 1,927 28 300
Serbia 1,908 51 54
Mexico 1,890 79 633
Panama 1,801 46 13
UAE 1,799 10 144
Dominican Republic 1,745 82 17
Greece 1,735 73 78
South Africa 1,655 11 95
Qatar 1,604 4 123
Iceland 1,486 4 428
Colombia 1,485 35 88
Argentina 1,451 44 280
Algeria 1,320 152 90
Singapore 1,309 6 320
Ukraine 1,308 37 28
Croatia 1,182 15 125
Egypt 1,173 78 247
Estonia 1,097 15 62
New Zealand 1,039 1 156
Morocco 1,021 70 76
Slovenia 997 28 79
Iraq 961 61 279
Hong Kong 890 4 206
Moldova, Republic of 864 15 30
Armenia 822 7 57
Lithuania 811 13 7
Hungary 733 34 66
Diamond Princess 712 11 619
Bahrain 700 4 431
Bosnia 654 23 30
Cameroon 650 9 17
Azerbaijan 584 7 32
Kazakhstan 584 6 42
Tunisia 574 22 5
Belarus 562 8 52
Kuwait 556 1 99
Macedonia 555 18 23
Latvia 533 1 1
Bulgaria 531 20 37
Lebanon 527 18 54
Andorra 501 18 26
Slovakia 485 1 10
Costa Rica 454 2 16
Cyprus 446 9 37
Uruguay 400 5 93
Taiwan 363 5 54
Albania 361 20 104
Afghanistan 349 7 15
Burkina Faso 345 17 90
Jordan 345 5 110
Réunion 344 0 40
Uzbekistan 342 2 30
Cuba 320 8 15
Channel Islands 309 6 27
Oman 298 2 61
Honduras 268 22 6
San Marino 266 32 35
Côte d"Ivoire 261 3 37
Vietnam 241 0 90
Palestinian Territory, Occupied 237 1 25
Nigeria 232 5 33
Mauritius 227 7 7
Malta 227 0 5
Senegal 222 2 82
Ghana 214 5 31
Montenegro 214 2 1
Niger 184 10 13
Faroe Islands 181 0 99
Sri Lanka 176 5 33
Georgia 174 2 36
Venezuela 159 7 52
Bolivia 157 10 2
DRC 154 18 3
Martinique 149 4 50
Kyrgyzstan 147 1 9
Kenya 142 4 4
Brunei 135 1 73
Guadeloupe 134 7 24
Mayotte 134 2 14
Isle of Man 127 1 0
Guinea 121 0 5
Cambodia 114 0 50
Trinidad and Tobago 104 7 1
Paraguay 104 3 12
Rwanda 104 0 4
Gibraltar 103 0 52
Bangladesh 88 9 33
Liechtenstein 77 1 0
Monaco 73 1 3
Madagascar 72 0 2
Aruba 64 0 1
El Salvador 62 3 2
Guatemala 61 2 15
French Guiana 61 0 22
Djibouti 59 0 9
Barbados 56 1 6
Jamaica 55 3 7
Uganda 52 0 0
Congo 45 5 2
Mali 45 5 1
Togo 44 3 20
Macao 44 0 10
Ethiopia 43 2 4
French Polynesia 41 0 0
Zambia 39 1 3
Bermuda 37 0 14
Cayman Islands 35 1 1
Saint Martin 32 2 7
Eritrea 29 0 0
Bahamas 28 4 0
Sint Maarten 25 4 1
Guyana 24 4 0
Tanzania, United Republic of 22 1 3
Benin 22 0 5
Gabon 21 1 1
Haiti 21 1 1
Myanmar 21 1 0
Syrian Arab Republic 19 2 2
Maldives 19 0 13
Libyan Arab Jamahiriya 18 1 0
Guinea-Bissau 18 0 0
New Caledonia 18 0 1
Equatorial Guinea 16 0 1
Namibia 16 0 3
Antigua and Barbuda 15 0 0
Dominica 14 0 0
Mongolia 14 0 2
Saint Lucia 14 0 1
Liberia 13 3 3
Sudan 12 2 2
Fiji 12 0 0
Grenada 12 0 0
Curaçao 11 1 5
Greenland 11 0 3
Lao People"s Democratic Republic 11 0 0
Angola 10 2 2
Suriname 10 1 0
Mozambique 10 0 1
Saint Kitts and Nevis 10 0 0
Seychelles 10 0 0
MS Zaandam 9 2 0
Zimbabwe 9 1 0
Nepal 9 0 1
Chad 9 0 0
Swaziland 9 0 0
Central African Republic 8 0 0
Cabo Verde 7 1 0
Holy See (Vatican City State) 7 0 0
Saint Vincent and the Grenadines 7 0 1
Somalia 7 0 1
Botswana 6 1 0
Mauritania 6 1 2
Nicaragua 6 1 0
Montserrat 6 0 0
St. Barth 6 0 1
Sierra Leone 6 0 0
Turks and Caicos Islands 5 1 0
Belize 5 0 0
Bhutan 5 0 2
Gambia 4 1 2
Malawi 4 0 0
Western Sahara 4 0 0
Anguilla 3 0 0
British Virgin Islands 3 0 0
Burundi 3 0 0
Caribbean Netherlands 2 0 0
Falkland Islands (Malvinas) 2 0 0
Papua New Guinea 1 0 0
Saint Pierre Miquelon 1 0 0
South Sudan 1 0 0
Timor-Leste 1 0 0
China 81,669 3,329 76,964
READ  B.C. crabs seen feasting on methane, adapting to climate change

Current models of lunar formation suggest that the moon formed as a result of a glancing blow between the early Earth and a Mars-size body, commonly called Theia. According to the model, the collision between Earth and Theia threw molten rock and metal into orbit that collided together to make the moon.

The new theory relies instead on a synestia, a new type of planetary object proposed by Stewart and Simon Lock, graduate student at Harvard and visiting student at UC Davis, in 2017. A synestia forms when a collision between planet-sized objects results in a rapidly spinning mass of molten and vaporized rock with part of the body in orbit around itself. The whole object puffs out into a giant donut of vaporized rock.

READ  Denali: Dinosaur Bones Discovered in Park Is a First

Synestias condense into planets

Synestias likely don’t last long — perhaps only hundreds of years. They shrink rapidly as they radiate heat, causing rock vapor to condense into liquid, finally collapsing into a molten planet.

“Our model starts with a collision that forms a synestia,” Lock said. “The moon forms inside the vaporized Earth at temperatures of four to six thousand degrees Fahrenheit and pressures of tens of atmospheres.”

An advantage of the new model, Lock said, is that there are multiple ways to form a suitable synestia — it doesn’t have to rely on a collision with the right sized object happening in exactly the right way.

READ  Squids talk to each other visually using bioluminescence

Once the Earth-synestia formed, chunks of molten rock injected into orbit during the impact formed the seed for the moon. Vaporized silicate rock condensed at the surface of the synestia and rained onto the proto-moon, while the Earth-synestia itself gradually shrank. Eventually, the moon would have emerged from the clouds of the synestia trailing its own atmosphere of rock vapor. The moon inherited its composition from the Earth, but because it formed at high temperatures it lost the easily vaporized elements, explaining the moon’s distinct composition.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.