Add news
News Every Day |

Venus wasnt always hell, scientists say. It may have had beaches.

It's possible that Venus and Earth once simultaneously existed as pleasant worlds hosting mild temperatures and oceans.

Then, something went awry.

In new research, planetary scientists simulated how Venusian conditions today — with pizza oven-like temperatures, a crushing atmosphere, and past evidence of widespread volcanism — came to be. The results suggest that Venus, over a series of massive volcanic outgassing events and other geologic changes, transitioned from an Earth-like world to the hellish land we see today. Even the longest-lived robot sent to Venus survived for just two hours.

"It's hot enough to melt lead," Matthew Weller, a planetary geophysicist at Rensselaer Polytechnic Institute who coauthored the new research, told Mashable. "It's a very unpleasant place to be."

The study has been published in the peer-reviewed journal Science Advances.

Venus and Earth, although they've taken two dramatically different climatic roads, are considered sibling planets. They're about the same size. They're made out of the same rocky stuff. They both dwell in the inner part of the solar system. So what happened?

"You have these two planets sitting there, and then one spins off in another direction," Weller explained.

We can't, of course, go back in time to find out why. Nor can we send geologists there to sleuth the Venusian past. But the researchers used advanced computer simulations — which created 3D spherical models of geologic activity on Venus— of how the hot rock convecting beneath the surface, called the mantle, broke Venus' crust and ultimately drove the harsh outcomes present today. "Venus basically baked itself," Weller said.

"Venus basically baked itself."

Running the models showed that a once temperate, Earth-like Venus experienced a series of "stairstep" events, wherein deep interior motions rupturing the crust allowed for volcanism to reach Venus' surface. This led to molten rock resurfacing the planet and massive volcanic outgassing to fill the atmosphere, creating immense surface pressure. Over multiple periods of some 60 million years, each outgassing episode could have added three to 10 times more atmospheres (an atmosphere, or atm, is a unit of pressure representing one atmosphere on Earth) to Venus' atmosphere. Today, the pressure on the Venusian surface is 92 bars, or 1,350 psi. "To put this into context, imagine having 1,350 pounds (over 600 kilograms) resting on one square inch of your body; it would be like having a small car sitting on your thumbnail," the Planetary Society explains.

A conceptual illustration showing expansive oceans on Venus long ago. Credit: NASA
Venus as viewed from NASA's Mariner 10 spacecraft in 1974. Credit: NASA / JPL-Caltech

It's unknown when, exactly, these planet-altering events began. It could have been several billion years ago, or much more "recently" at hundreds of millions of years ago. But, for many eons, both Earth and Venus may have hosted expansive oceans and balmy temperatures, with water rippling onto shorelines. And they would have been just some 67 million miles apart from each other (a minute cosmic distance).

"It's possible both were habitable," Weller said.  

Importantly, the Venus-Earth dichotomy reveals how much a planet can change. An exoplanet we see today, many light-years away in deep space, may look completely different in the future. Or Earth, without being pummeled by a colossal asteroid, could markedly transform, too. "Planets change dramatically over time," Weller emphasized. "It shows how easy it is for an Earth-like planet to become like Venus."

"It shows how easy it is for an Earth-like planet to become like Venus."

The "million-dollar question," however, is what initially pushed Venus onto this trajectory of repeated episodes of extreme volcanism, surface rupturing, and prodigious outgassing. It could have been an extremely large eruptive event at the wrong time that fed into a runaway cycle. Geologically, a world's atmosphere and inner-workings are inextricably connected, as conditions in the atmosphere influence what transpires below a planet's surface. For example, on Earth, rock weathering, over hundreds of millions of years, removes heat-trapping carbon dioxide from the air, acting to stabilize the climate. On Venus, dramatically cranking up surface temperature can kill plate tectonics, Weller explained, shutting off a planet's ability to stabilize itself.

This could have pushed Venus to veer sharply from its Earthly environs. And as the researchers simulated, it couldn't turn around.

In the coming years, Venus may grow much less mystifying. A NASA mission called DAVINCI — short for Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging — will drop a three-foot-wide titanium sphere through Venus' thick clouds. Over the course of just an hour, the probe will ingest gases, run experiments, and show us what Venusian mountains actually look like. It will dramatically improve our understanding of Venus, and why it's so unlike its rocky "twin," Earth.

Москва

Сотрудники СОБР Росгвардии преодолели дистанцию «Московского полумарафона»

Реклама
The most beautiful beach towns with cheap living

A huge number of people around the world dream of one day breaking out of the daily routine

New York lawmakers are moving to shut down Elon Musk’s Tesla sales across the EV-friendly state

Man arrested in San Leandro BART station stabbing

Apple aims to build most iPhones for U.S. in India by end-2026

DOGE’s mass federal workforce cuts may cost taxpayers $135 billion this fiscal year alone

Ria.city
Реклама
  • ИП Попов А.П.
  • ИНН: 602715631406
Ревматолог: "29 апреля 2024 в г.Колумбус запущена квота"

Каждый человек с больными суставами имеет право получить...






Реклама
  • ИП Попов А.П.
  • ИНН: 602715631406
Ревматолог: "29 апреля 2024 в г.Колумбус запущена квота"

Каждый человек с больными суставами имеет право получить...


Read also

Woman in her 30s dies in horror skydiving accident after ‘parachute malfunctioned’ at UK farm

Bloke shows off his sparkly bling house with huge Chanel signs & disco curtains – even the smoke alarm’s glittery

Exclusive: How Alexis Mac Allister and Liverpool feel about Real Madrid transfer interest

News, articles, comments, with a minute-by-minute update, now on Today24.pro

News Every Day

DOGE’s mass federal workforce cuts may cost taxpayers $135 billion this fiscal year alone

Today24.pro — latest news 24/7. You can add your news instantly now — here


News Every Day

Apple aims to build most iPhones for U.S. in India by end-2026



Sports today


Новости тенниса
Екатерина Александрова

Александрова победила Касаткину на турнире в Мадриде



Спорт в России и мире
Москва

Экс-хоккеист Рыбин оценил перспективы игроков «Динамо» в НХЛ



All sports news today





Sports in Russia today

Москва

В Пермском военном институте Росгвардии прошли спортивные соревнования среди допризывной молодежи


Новости России

Game News

We can finally play 2006's flip phone-exclusive Monster Hunter port thanks to the tireless work of game preservationists and fan translators


Реклама
The most beautiful beach towns with cheap living

A huge number of people around the world dream of one day breaking out of the daily routine

Реклама
Top 6 nutrition questions men should ask themselves after 40

To maintain health and remain full of energy, men will be helped by this

Russian.city

Реклама
The most beautiful beach towns with cheap living

A huge number of people around the world dream of one day breaking out of the daily routine


Москва

Более 16 тысяч жителей региона, пострадавших в результате аварии на Чернобыльской АЭС, получают меры соцподдержки от Отделения СФР по Москве и Московской области


Губернаторы России
РБК

РБК: лидеры 19 стран подтвердили свое участие в параде Победы в Москве 9 мая


Mash: Петросян через суд выписал свою 56-летнюю дочь из квартиры в Москве

Документальный фильм, снятый в Алтайском крае, покажут в эфире телеканала "Матч"

В Москве прошел чемпионат России по грэпплингу среди студентов

Сергунина анонсировала программу в кинопарке «Москино» к 80-летию Победы


В Москве суд взыскал с певицы Жанны Агузаровой долг по коммунальным платежам

Дело дошло до суда: Жанна Агузарова давно не платила за ЖКУ

Зять Волочковой Никита Григорян сообщил, что свадьба с Ариадной состоялась

11.05 Игорь Бутман приглашает на «Дни джаза в Сириусе»


Теннисистки Андреева и Шнайдер вышли во второй круг турнира WTA-1000 в Мадриде

Чемпионка двух ТБШ Виктория Азаренко покинет топ-50 рейтинга WTA

Рублев: Турнир в Дохе был действительно особенным

Рублев проиграл Бублику в третьем круге «Мастерса» в Мадриде, Медведев станет первой ракеткой России


Реклама
Top 6 nutrition questions men should ask themselves after 40

To maintain health and remain full of energy, men will be helped by this


ЦСКА пробился в полуфинал, обыграв "Пари Нижний Новгород" в серии 3-0

Суд оставил блогера Лерчек и ее бывшего мужа под домашним арестом

Тренд 100 тысяч шагов: врач предупреждает об опасности для жизни

Россия в 2024 году осталась четвертой экономикой мира


Собянин: В Москве создадут флагманский диспетчерский центр скорой помощи

«Выбрал путь служить»: история любви Валерии и Иосифа Пригожина

Внебрачный сын Пореченкова: «Я приехал в Москву кривой, косой, лысый»

Экс-игрок Мостовой: думаю, что "Краснодар" должен удержать преимущество в РПЛ


Египетская авиакомпания Almasria Universal Airlines сокращает полёты в Россию

Мэрия Москвы: участники программы "Миллион призов" помогают ветеранам Великой Отечественной войны

Начальник тульского управления МЧС назначен на новую должность

Получение свидетельства о государственной регистрации (СГР)


Реклама
Top 6 nutrition questions men should ask themselves after 40

To maintain health and remain full of energy, men will be helped by this


Путин в России и мире
Реклама
Top 6 nutrition questions men should ask themselves after 40

To maintain health and remain full of energy, men will be helped by this







Персональные новости Russian.city
Анастасия Волочкова

Анастасия Волочкова подралась с женихом дочери и сбежала со свадьбы



News Every Day

When will Liverpool lift the Premier League trophy?




Friends of Today24

Музыкальные новости

Персональные новости