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Rare 'ocean' planet found that is twice the size of Earth
Rare 'ocean' planet found that is twice the size of Earth
A rare planet has been discovered hundreds of light years away, and it could prove key to our understanding of planetary formations out there in the universe. There have been more than 5,300 exoplanets discovered, but few match the description of the newly recorded TOI-733b. Found 245 light-years away, TOI-733b is almost twice the size of Earth and orbits a sun slightly smaller than our Sun. While there are many exoplanets, there are a surprisingly small number which sit between one and a half and two times the radius of the Earth, and it's the size that makes it so interesting to scientists. Sign up to our new free Indy100 weekly newsletter The research was conducted by a team of astronomers led by Iskra Georgieva of Chalmers University of Technology in Sweden. It was accepted for publication in Astronomy & Astrophysics. The team focused on TOI-733b after data on the planet was collected by NASA's telescope TESS. The density of the planet suggests two things – it’s either totally covered in water, or it’s lost its atmosphere altogether. Clues point to the idea of TOI-733b’s atmosphere slowly depleting. That’s due to the proximity of the planet to its star, which it orbits in the space of just 4.9 days. If the atmosphere is being burned away, it means it could soon be transformed into a rock planet. The other possibility points to the planet having lost its hydrogen and helium, while retaining an atmosphere packed with water vapour. "Answering the question of whether TOI-733b has a secondary atmosphere or is an ocean planet boils down to differentiating between a Neptune-like planet that lost its ∼10 per cent of H/He to leave behind a steam atmosphere of heavier volatiles, and one that formed and remained relatively the same throughout its evolution," the research reads. "While being beyond the scope of this paper, finding an answer to this question will have broad implications on our understanding of exoplanets." The team went on to write: "By all accounts TOI-733 b looks to be an interesting planet and holds the potential of being a small but key piece to solving big puzzles in exoplanet science. "With ever increasing in-depth theoretical analyses and the promise of high-precision follow up by present and upcoming facilities, we seem to be well on the way to finding answers to major questions relating to planet formation and evolution." Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.
2023-05-15 01:17
Assassin's Creed Mirage and 'Avatar: Frontiers of Pandora set for Ubisoft Live 2023
Assassin's Creed Mirage and 'Avatar: Frontiers of Pandora set for Ubisoft Live 2023
Ubisoft Forward Live takes place on June 12.
2023-06-02 22:21
The Little-Known Group That's Battling Wall Street Over ESG
The Little-Known Group That's Battling Wall Street Over ESG
Operating with a meager budget from a suburban home outside Washington, Will Hild is gearing up for his
2023-06-07 22:26
China Poses ‘Alarming’ Threat to US Power Grid, Lawmakers Told
China Poses ‘Alarming’ Threat to US Power Grid, Lawmakers Told
China represents an increasing threat to the US power grid, lawmakers were told Tuesday during a hearing in
2023-07-19 05:53
Climate Change Fuels Global Political Volatility, Australia Says
Climate Change Fuels Global Political Volatility, Australia Says
Climate change threatens to exacerbate political instability, particularly in the Pacific region where rising temperatures pose an “existential
2023-11-30 12:49
China's Xpeng to acquire Didi's smart EV unit in deal worth up to $744 million
China's Xpeng to acquire Didi's smart EV unit in deal worth up to $744 million
HONG KONG (Reuters) -Chinese electric car company Xpeng said it will acquire ride-hailing giant Didi's smart electric vehicle unit and
2023-08-28 10:55
Tata Group Closes In on Deal to Become First Indian iPhone Maker
Tata Group Closes In on Deal to Become First Indian iPhone Maker
Tata Group, India’s largest conglomerate, is close to an agreement to acquire an Apple Inc. supplier’s factory as
2023-07-11 13:49
Kai Cenat claps back at KSI for mocking his and IShowSpeed's new song 'Dogs': 'Stick to boxing'
Kai Cenat claps back at KSI for mocking his and IShowSpeed's new song 'Dogs': 'Stick to boxing'
Kai Cenat and ISnowSpeed collaborated for a song titled 'Dogs'
2023-05-24 13:59
LEAK: Pump Shotgun and Tactical Shotgun Returning in Fortnite Chapter 4 Season 5
LEAK: Pump Shotgun and Tactical Shotgun Returning in Fortnite Chapter 4 Season 5
New leaks reveal the return of the Pump Shotgun and Tactical Shotgun in Fortnite Chapter 4 Season 5, along with the Fortnite Chapter 1 Season 5 map.
2023-10-11 23:58
Tech Addiction Is Real: How to Cut Back on Screen Time and Wean Off Social Media
Tech Addiction Is Real: How to Cut Back on Screen Time and Wean Off Social Media
How often do you look at your phone a day? According to an Asurion study,
2023-05-13 05:27
World’s Most Valuable Chipmaker Nvidia Unveils More AI Products After $184 Billion Rally
World’s Most Valuable Chipmaker Nvidia Unveils More AI Products After $184 Billion Rally
Nvidia Corp. Chief Executive Officer Jensen Huang unveiled a new batch of products and services tied to artificial
2023-05-29 12:26
iOS 17: Apple releases major update for iPhone, iPad, Apple TV and more
iOS 17: Apple releases major update for iPhone, iPad, Apple TV and more
Apple has released iOS 17, its major new update for the iPhone. It comes alongside upgrades for almost every other platform: new software for the Apple Watch, the iPad, Apple TV and even AirPods. Only the Mac is leftout, and will receive its own update next week. Most of the new upgrades focus on communication. There are improvements to Messages, the Phone app and FaceTime, for instance – but iOS 17 also adds interactive widgets and wallpapers to the iPhone. It also brings a significant change in a new feature called “StandBy”. That lets users charge their phone on its side and bring up a whole different page, which is intended to be useful on a bedside or kitchen surface. The iPad gets many of the same improvements, although it does not have the StandBy update. It does however bring significant redesigns to the lock screen. The Watch also gets a redesign, with a new look intended to make it easier to swipe through widgets and use apps more quickly. And even the Apple TV and AirPods get new features. The set-top box can now make FaceTime calls itself, and the AirPods get a new adaptive audio mode that aims to block out annoying sounds with noise cancellation but keep important ones. All of the new updates can be downloaded by opening the Settings app and then clicking the “General” option, and choosing software update. Apple devices will also look to start the update themselves. The new features were revealed in June, during Apple’s Worldwide Developers Conference event, in which it also showed off its new Vision Pro headset. The update also comes days ahead of the release of the new iPhone 15. That will go on sale on Friday. Read More Apple explains how the iPhone turned into a camera like none before it Tim Cook says Vision Pro release is on track: ‘I watched Ted Lasso Season 3 on it’ Apple Store goes offline as Apple opens pre-orders for iPhone 15
2023-09-20 02:28