国产精品美女一区二区三区-国产精品美女自在线观看免费-国产精品秘麻豆果-国产精品秘麻豆免费版-国产精品秘麻豆免费版下载-国产精品秘入口

Set as Homepage - Add to Favorites

【sex in the hay videos】Mars' 2 weird moons began as 1 large moon, study suggests

Source:Global Hot Topic Analysis Editor:fashion Time:2025-07-02 23:57:38

Mars may have sex in the hay videoshad a single moon before something smashed into it, tearing it asunder into the two moons we see today.

In a study publishedMonday in Nature, scientists explained how they used the orbital patterns of Phobos and Deimos along with seismic data from NASA's InSight missionto create a simulation of where their paths began, like a digital time machine. When they looked far enough back, it indicated the orbits once intersected, giving rise to the new smashed-moon theory.

While many moons in our solar system are spherical bodies like our own moon, Phobos and Deimos are not, explained Amirhossein Bagheri, lead author on the study and a doctoral researcher at the Institute of Geophyics, ETH Zürich.

“The Martian moons are quite irregular,” he said in a phone interview. “They are really potato-like things. They don't look like our moon.”

What makes Phobos and Deimos stand out

As moons go, Phobos and Deimos are quite small. The larger, oblong Phobos is roughly 157 times smaller than Earth’s moon with an equatorial circumference of around 43 miles. It and its little brother are much less dense than our Moon, meaning their interiors are more porous and possibly fractured, a fact gleaned from Phobos's large Stickney Crater.

Mashable ImageStickney Crater is visible on the lower right side of this image of Phobos, the larger of Mars's two moons. Credit: nasa / jpl-caltech / university of arizona

“After the Viking mission in the '70s, there was almost a consensus that Phobos and Deimos were captured asteroids,” Bagheri said, meaning Phobos and Deimos were asteroids traveling through our solar system that were trapped in Mars’s orbit.

The problem is the moons' orbits don’t line up with that theory.

Bagheri said an asteroid caught by Mars should have an elongated orbit.

“We expect that the orbit would be really eccentric, but that's not the case for the Martian moons," Bagheri said. "They're quite circular.”

Not only are the orbits near-circular, they also occur around the equator of Mars. That's what you would expect to see from moons that were formed alongside or from a rotating planet — called “in situ” (Latin for “on site”). Asteroids, meanwhile, can begin orbiting a planet at a wide range of angles and would likely not be orbiting as close to the equator as Phobos and Deimos are.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

Earth’s moon is generally believed to have formed after Earth was hit by something roughly the size of Mars 4.5 billion years ago. The impact kicked up a bunch of molten debris, which swirled around the rotating Earth and eventually formed our nice, round moon with its circular, equatorial orbit.

Stepping through the orbital time machine

Phobos and Deimos are not locked at a certain distance from Mars. Phobos, the closer moon, is slowly moving closer toward Mars at a rate of roughly six feet per year. Deimos on the other hand is moving awayfrom Mars several inches each year.

Taking that in consideration along with other, complex factors, the team was able to create the simulation, explained fellow study author Michael Efroimsky, research scientist at the U.S. Naval Observatory.

“It turns out that at some point, the orbits of Phobos and Deimos intersected or were extremely close, which gives us an opportunity to think they are probably remnants of a larger body,” he said in a phone interview.

He said if the impact was intense, the parent body could have just disintegrated. If it wasn’t very intense, it’s possible it could have split into two large pieces, one of which fell a little closer to Mars and the other spun out a little further.

Some key pieces to putting together the puzzle of the simulation were the interiors of Mars and the moons.

We don’t know much about Phobos and Deimos because we don’t have spacecraft on them. But we have new information about Mars from NASA’s InSight, which measures seismic activity. By looking at marsquakes, scientists can piece together a map of the planet's deep interior. This information paired with tidal calculations help create a more accurate simulation.

Solidifying the theory

To make this moon-smashing theory more solid, more evidence is needed to more accurately define Phobos and Deimos, two bodies that haven’t seen any visitors on their surfaces.

“Of course, the most reliable way to test our theory would be to have some geological probes,” Efroimsky said. “That would be absolutely wonderful.”

Luckily, a mission called Martian Moons Explorationfrom the Japanese Aerospace Exploration Agency will investigate both moons. The plan is to launch in the mid 2020s. It will also return a sample of Phobos back to Earth, if everything goes well.

“We have been in touch with them,” Bagheri said.

SEE ALSO: Immerse yourself in Perseverance's 360-degree vista of Mars

If the mission’s instruments are accurate enough and the tidal forces are large enough (which Bagheri thinks they are), they could better understand the interiors of the moons.

“Basically, that can solve the $10 question,” he said.

Related Video: Facts about space that will rock your world

0.1739s , 14294.7578125 kb

Copyright © 2025 Powered by 【sex in the hay videos】Mars' 2 weird moons began as 1 large moon, study suggests,Global Hot Topic Analysis  

Sitemap

Top 主站蜘蛛池模板: 99精品视频国产一区二区三区 | 成a人片在线观看视频 | 午夜精品久久久久久毛片色欲 | 国产99视频精品免费视频7 | 国产aa夜夜欢一级黄色片 | av巨作精品原创 | 粉嫩少妇内射浓精videos | 91福利精品老师国产自产在 | 午夜成人亚洲理论片在线观看 | 午夜男人网 | 成人性生交大片免费看r链接 | 潮喷大喷水系列无码精品视频 | 91狠狠色丁香婷婷综合久久 | 91久久无码99精品高潮久 | 97精品久久天干天天天按摩 | 东京热久久男人的天堂 | 变态视频免费 | 丁香色综合 | 被教官按在寝室狂到腿软视频 | 97超级碰碰人妻中文字幕 | 高潮射精日本韩国在线播放 | 91精品啪在线观看国产免费81 | 91在线免费观看高清视频 | 91桃色视频 | 91久久人人妻人人澡人人爽 | 午夜三级中文不 | 99久久免费精品视香蕉蕉 | 成年人影视网站 | 99久久99久久久精品久久 | AV亚洲欧洲日产国码无码苍井空 | 97久久精品人人槡人妻人人玩 | 国产av一二三专区 | av无码精品一区二区三区宅噜噜 | 91在线无码精品毛片 | 成人午夜影视 | 99久久无色码中文字幕无广告 | 午夜欧美不卡精品aaaaa | 午夜羞羞视频在线 | www.亚洲天堂 | 潮喷失禁调教sm在线 | 二区三区二区亚洲成高清女女 |