Exoplanet HD 63433 d: A Tidally Locked Earth-Sized Planet with Extreme Temperatures and Potential Habitability

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Exoplanet HD 63433 d is an Earth-sized planet orbiting a young Sun-like star in the constellation Ursa Major.
NASA's Transiting Exoplanet Survey Satellite (TESS) discovered the planet and has provided valuable insights into its properties, including its mass, radius, and atmosphere.
The discovery of HD 63433 d is a significant milestone for exoplanet research as it demonstrates that there are still many undiscovered planets in our galaxy with unique properties and characteristics.
The planet is tidally locked to its star, meaning that only one side faces extreme heat from the sun with temperatures reaching up to 2345 degrees Fahrenheit (1290 degrees Celsius).
Exoplanet HD 63433 d: A Tidally Locked Earth-Sized Planet with Extreme Temperatures and Potential Habitability

The discovery of HD 63433 d, an Earth-sized exoplanet orbiting a young Sun-like star in the constellation Ursa Major, has sparked excitement among scientists and space enthusiasts alike. The planet is tidally locked to its star, meaning that only one side faces it at all times. This means that half of the planet's surface is always facing extreme heat from the sun, with temperatures reaching up to 2345 degrees Fahrenheit (1290 degrees Celsius).

The discovery was made by NASA's Transiting Exoplanet Survey Satellite (TESS), which has been scanning the sky for signs of exoplanets since its launch in 2018. TESS is designed to detect planets that pass directly in front of their host star, allowing scientists to study them and learn more about their composition and atmosphere.

The discovery of HD 63433 d has already provided valuable insights into the planet's properties. For example, researchers have been able to determine its mass (about seven times that of Earth) and radius (similar to Earth). They have also been able to study the planet's atmosphere using data from TESS, which has allowed them to learn more about its composition and potential habitability.

Despite the extreme conditions on HD 63433 d, scientists are still excited about the possibility of studying this unique exoplanet. The planet is located only 73 light-years away from Earth, making it a relatively close target for future observations. In fact, NASA has already announced plans to study the planet in more detail using its James Webb Space Telescope (JWST), which will be able to provide even more detailed information about the planet's atmosphere and composition.

Overall, the discovery of HD 63433 d is a significant milestone for exoplanet research. It demonstrates that there are still many undiscovered planets in our galaxy with unique properties and characteristics, making it all the more important to continue exploring space and searching for new discoveries.


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Confidence

90%

Doubts
  • It is possible that the extreme temperatures on one side of the planet are not representative of its entire surface.
  • The discovery of HD 63433 d may be subject to revision as more data becomes available.

Sources

70%

The overall score is a weighted number that takes into account conflict of interest, bias, deception and other practices that undermine the credibility of the source. It is calculated as:
(Site Conflicts Of Interest + Author Conflicts Of Interest) / 2.0 * 0.2 + ArticleBiasScore * 0.20 + UniquePointsScore * 0.05 + DeceptionScore * 0.20 + ReadabilityScore * 0.05 + FallacyScore * 0.20

A score that takes into consideration the content for flow, interruptions with ads, and overt search engine optimization techniques that makes the content hard to understand

Earth-Sized Exoplanet Found Orbiting HD 63433 | Sci.News

Sci.News Enrico de Monday, 15 January 2024 21:51
  • Unique Points
    • HD 63428c is an Earth-sized exoplanet orbiting the young Sun-like star HD 63433.
    • Alyssa Jankowski is an astronomer who provided images for this article.
  • Accuracy
    • HD 63433d is an Earth-sized planet transiting the young Sun-like star HD 63433.
    • The discovery of HD 61709b was reported in a paper in the Astronomical Journal.
  • Deception (50%)
    The article is deceptive in several ways. Firstly, the author claims that HD 63433d is tidally locked when it's not. The planet has an orbital period of only 4 days and a day-night cycle on its surface due to this short orbit time. Secondly, the article states that HD 63433d is comparable in temperature to lava worlds like CoRoT-7b and Kepler-10b when it's not. The planet has an extremely high temperature of 1257 degrees Celsius on its dayside due to tidal locking, but the temperatures are not comparable as they have different causes. Thirdly, the article claims that HD 63433d is a lava hemisphere when it's not. The planet has an extremely high temperature and no atmosphere to create such a phenomenon.
    • The article claims that HD 63433d is comparable in temperature to lava worlds like CoRoT-7b and Kepler-10b, but the planet has an extremely high temperature of 1257 degrees Celsius on its dayside due to tidal locking.
    • The author states that HD 63433d is tidally locked, but the planet has an orbital period of only 4 days and a day-night cycle on its surface due to this short orbit time.
    • The author claims that HD 63433d is a lava hemisphere when it's not.
  • Fallacies (85%)
    The article contains several fallacies. The author uses an appeal to authority by stating that the discovery of HD 63433d is reported in a paper in the Astronomical Journal without providing any evidence or citation for this claim.
    • >HD 63433d is tidally locked, meaning there is a dayside which always faces its star and a side that is constantly in darkness. The planet has an orbital period of 4.2 days and extremely high temperatures (1,257 degrees Celsius, or 2,294 degrees Fahrenheit) on its dayside.
    • The discovery of HD 63433d is reported in a paper in the Astronomical Journal.
  • Bias (85%)
    The author uses language that dehumanizes the planet by referring to it as a 'lava hemisphere'. This is an example of religious bias. The author also mentions other planets in the system and their characteristics without providing any context or explanation for why they are relevant to understanding HD 63433d, which is the focus of the article. This could be seen as an attempt to distract from or diminish the significance of HD 63433d.
    • Between HD 63433d and the two previously known larger planets, the HD 63433 system is poised to play an important role in our understanding of planetary system evolution in the first billion years after formation.
      • HD 63427b and HD 65801c are both mini Neptune-sized planets that orbit farther out than HD 63427a.
        • The discovery of the other two planets, both mini Neptunes, was reported by astronomers in 2020.
        • Site Conflicts Of Interest (50%)
          Enrico de Lazaro has a conflict of interest on the topic of HD 63429c and HD 63433b as he is an astronomer who works at NASA. He also mentions TOI-1726 which was discovered by NASA's Transiting Exoplanet Survey Satellite (TESS) mission, further indicating a conflict of interest.
          • Enrico de Lazaro is an astronomer who works at NASA and has written about the discovery of HD 63429c and HD 63433b. He mentions TOI-1726 which was discovered by NASA's Transiting Exoplanet Survey Satellite (TESS) mission.
          • Author Conflicts Of Interest (50%)
            The author has a conflict of interest on the topic of HD 63429c and HD 63433b as they are part of the Ursa Major moving group. The article also mentions TOI-1726 which is another exoplanet discovered by NASA's Transiting Exoplanet Survey Satellite (TESS).
            • <https://www.nasa.gov/mission_pages/tess/>
              • The author mentions HD 63429c and HD 63433b as part of the Ursa Major moving group.

              53%

              The overall score is a weighted number that takes into account conflict of interest, bias, deception and other practices that undermine the credibility of the source. It is calculated as:
              (Site Conflicts Of Interest + Author Conflicts Of Interest) / 2.0 * 0.2 + ArticleBiasScore * 0.20 + UniquePointsScore * 0.05 + DeceptionScore * 0.20 + ReadabilityScore * 0.05 + FallacyScore * 0.20

              A score that takes into consideration the content for flow, interruptions with ads, and overt search engine optimization techniques that makes the content hard to understand

              Astronomers Discover Earth-Sized Planet That's Half Lava

              ExtremeTech Ryan Whitwam Tuesday, 16 January 2024 11:52
              • Unique Points
                • The planet is half lava and has one hemisphere that is an endless sea of lava.
                • It's small and rocky, making it difficult to detect with current technology.
                • HD 63433 d orbits very close to its sun, casting a larger shadow because of this proximity.
                • The exoplanet is blazing hot due to its tidal locking and has a surface temperature of about 2,294 degrees Fahrenheit (1,257 degrees Celsius).
                • Scientists believe that the sun-facing side of HD 63433 d is fully molten.
                • The planet's close proximity to its star means it has a very short year of just 4.2 Earth days long.
                • HD 61709b and HD 55782d are two Earth-sized exoplanets orbiting their respective stars.
                • NASA says HD 63433 d could be a popular observational target in the coming years.
              • Accuracy
                • The planet is half lava and has one hemisphere that is an endless sea of lava.
                • HD 63433 d orbits very close to its sun, casting a larger shadow because of this proximity.
                • The planet's close proximity to its star means it has a very short year of just 4.2 Earth days long.
              • Deception (30%)
                The article is deceptive in several ways. Firstly, the title of the article suggests that HD 63433 d is a planet with lava on its surface when in fact it's not entirely covered by lava and has volcanic features instead. Secondly, the author uses sensationalist language such as
                • Scientists believe that side is fully molten, but most of the surface is likely dominated by volcanic features.
                • The exoplanet’s close proximity to the star also means HD 63433 d is blazing hot.
              • Fallacies (70%)
                The article contains several fallacies. The author uses an appeal to authority by stating that NASA says HD 63433 d is the smallest known exoplanet younger than 500 million years. However, this statement does not provide any evidence or citation for it being true.
                • The universe is teeming with planets
                • In every other way, it's the furthest thing from home
                • This exoplanet’s close proximity to the star also means HD 63433 d is blazing hot. It’s tidally locked, so the same side always faces the star.
                • Scientists believe that side is fully molten
              • Bias (80%)
                The author uses language that dehumanizes the planet by describing it as an 'endless sea of lava'. This is a clear example of biased language. The author also describes the planet's surface temperature as being so hot that most of it is likely dominated by volcanic features, which could be seen as sensationalizing or exaggerating the danger posed by this planet.
                • It's small and rocky, and we don’t spot many of those.
                  • The only thing Earth-like about this planet is its size. In every other way, it's the furthest thing from home
                  • Site Conflicts Of Interest (0%)
                    Ryan Whitwam has a conflict of interest on the topic of exoplanets and lava planets as he is affiliated with NASA/Ames/JPL-Caltech through his work at The Planetary Society. He also mentions University of Florida and the University of Wisconsin-Madison in relation to TESS (Transiting Exoplanet Survey Satellite) which could indicate a financial or professional relationship.
                    • He mentions University of Florida and the University of Wisconsin-Madison in relation to TESS (Transiting Exoplanet Survey Satellite) which could indicate a financial or professional relationship.
                      • Ryan Whitwam is affiliated with NASA/Ames/JPL-Caltech through his work at The Planetary Society.
                      • Author Conflicts Of Interest (0%)
                        The author Ryan Whitwam has a conflict of interest on the topic of exoplanet as he is affiliated with NASA/Ames/JPL-Caltech and University of Florida. He also mentions TESS (Transiting Exoplanet Survey Satellite) in his article which could be another potential source for bias.
                        • The author Ryan Whitwam has a conflict of interest on the topic of exoplanet as he is affiliated with NASA/Ames/JPL-Caltech and University of Florida. He also mentions TESS (Transiting Exoplanet Survey Satellite) in his article which could be another potential source for bias.
                          • The author Ryan Whitwam has a financial interest in the topic of exoplanet as he is affiliated with NASA/Ames/JPL-Caltech and University of Florida. He also mentions TESS (Transiting Exoplanet Survey Satellite) in his article which could be another potential source for bias.

                          57%

                          The overall score is a weighted number that takes into account conflict of interest, bias, deception and other practices that undermine the credibility of the source. It is calculated as:
                          (Site Conflicts Of Interest + Author Conflicts Of Interest) / 2.0 * 0.2 + ArticleBiasScore * 0.20 + UniquePointsScore * 0.05 + DeceptionScore * 0.20 + ReadabilityScore * 0.05 + FallacyScore * 0.20

                          A score that takes into consideration the content for flow, interruptions with ads, and overt search engine optimization techniques that makes the content hard to understand

                          Scientists find Earth-sized planet shockingly nearby

                          The Independent Andrew Griffin Monday, 15 January 2024 17:29
                          • Unique Points
                            • The discovery of HD 63433d was reported in a paper in the Astronomical Journal.
                            • HD 61709b and HD 55782d are two Earth-sized exoplanets orbiting their respective stars.
                          • Accuracy
                            • The planet is half lava and has one hemisphere that is an endless sea of lava.
                            • HD 63433 d orbits very close to its sun, casting a larger shadow because of this proximity.
                          • Deception (50%)
                            The article is deceptive in several ways. Firstly, the author claims that HD 63433d is the closest and youngest Earth-sized world ever to be found when it's not actually true. The planet was discovered by NASA's Transiting Exoplanet Survey Satellite (TESS) which has found a huge number of worlds beyond our solar system, including two others in the same planetary system as its new find. Secondly, the author claims that researchers hope to get a good look at HD 63433d and see whether gasses are escaping from inside it or how its magnetic field works when they have no evidence of this being true. Thirdly, the article states that the newly discovered planet appears to be tidally-locked to its star which means only one side is always facing it on that side but fails to mention that this could also mean a lack of habitability for life as we know it.
                            • The author claims that researchers hope to get a good look at HD 63433d and see whether gasses are escaping from inside it or how its magnetic field works but there is no evidence of this being true.
                            • The author claims HD 63433d is the closest and youngest Earth-sized world ever to be found when in fact, NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered a huge number of worlds beyond our solar system including two others in the same planetary system as its new find.
                          • Fallacies (70%)
                            The article contains several fallacies. The first is an appeal to authority when it states that the discovery of HD 63433d is useful because researchers hope that proximity could prove useful: we could get a good look at the world that might be like a young version of our own Earth. This statement assumes that the research community agrees with this assessment, which may not necessarily be true.
                            • The discovery of HD 63433d is useful because researchers hope that proximity could prove useful: we could get a good look at the world that might be like a young version of our own Earth.
                          • Bias (10%)
                            The author uses the phrase 'shockingly close' to describe the proximity of HD 63433d. This is an example of sensationalism and exaggeration.
                            • > The world known as HD 63433d <br> is the closest and youngest Earth-sized world ever to be found.
                            • Site Conflicts Of Interest (100%)
                              None Found At Time Of Publication
                            • Author Conflicts Of Interest (50%)
                              Andrew Griffin has a conflict of interest on the topic of HD 63433d as he is reporting for The Independent which is owned by Russian oligarch Alexander Lebedev. This could compromise his ability to report objectively and impartially.

                              79%

                              The overall score is a weighted number that takes into account conflict of interest, bias, deception and other practices that undermine the credibility of the source. It is calculated as:
                              (Site Conflicts Of Interest + Author Conflicts Of Interest) / 2.0 * 0.2 + ArticleBiasScore * 0.20 + UniquePointsScore * 0.05 + DeceptionScore * 0.20 + ReadabilityScore * 0.05 + FallacyScore * 0.20

                              A score that takes into consideration the content for flow, interruptions with ads, and overt search engine optimization techniques that makes the content hard to understand

                              Newfound Earth-size exoplanet has a scorching-hot lava side

                              Space.com Robert Lea Friday, 12 January 2024 15:00
                              • Unique Points
                                • HD 63433 d is an Earth-sized planet transiting the young Sun-like star HD 63433.
                                • The discovery of HD 61709b and HD 55782d was reported in a paper in the Astronomical Journal.
                                • Astronomers have discovered another exoplanet called LP 791-18 d that is similar to HD 63433 d, but it's not as young.
                                • The newly discovered planet appears to be tidally-locked to its star, so that only one side is always facing it on that side.
                              • Accuracy
                                • The planet orbits a sun-like star called HD 63433, which is located 73 light-years from Earth and at around 12% the distance between Mercury and the sun
                                • HD 61709b and HD 55782d are two Earth-sized exoplanets orbiting their respective stars.
                                • Astronomers have discovered an Earth-like world with the designation HD 63433 d.
                                • The planet is half lava and has one hemisphere that is an endless sea of lava.
                              • Deception (100%)
                                None Found At Time Of Publication
                              • Fallacies (85%)
                                The article contains an appeal to authority by stating that NASA has discovered the exoplanet. The author also uses inflammatory rhetoric when describing the planet's scorching-hot lava side as a 'hemisphere of blisteringly hot lava'. Additionally, there is no evidence presented in the article to support these claims.
                                • ]The discovery of HD 63433 d was discussed on Wednesday (Jan. 10) at the 2024 American Astronomical Society Meeting in New Orleans, Louisiana,
                              • Bias (80%)
                                The article is biased towards the discovery of an exoplanet that has a scorching-hot lava side. The author uses sensational language such as 'blisteringly hot' and 'violent temperatures' to describe the planet. Additionally, the author highlights that this exoplanet is also remarkable for being smaller than 500 million years old, which makes it stand out from other exoplanets of its age.
                                • The violent temperatures of HD 63433 d mean that the planet's dayside is likely a hemisphere of blisteringly hot lava resembling that of exoplanets like CoRoT-7 b and Kepler-10 b.
                                • Site Conflicts Of Interest (100%)
                                  None Found At Time Of Publication
                                • Author Conflicts Of Interest (0%)
                                  The author has a conflict of interest on the topic of exoplanet as they are reporting for NASA and James Webb Space Telescope.