* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Sunday, August 3, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Go-to entertainment: why gaming was made for the toilet – The Guardian

    Why Gaming Is the Ultimate Way to Pass Time in the Bathroom

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Sens. Blackburn, Warnock introduce CREATE Act to provide tax relief to music creators – Yahoo Home

    Sens. Blackburn and Warnock Launch CREATE Act to Deliver Tax Relief for Music Creators

    That’s (Political) Entertainment: When Theatre Meets Politics

    Future Script: How Generative AI Is Changing Collective Bargaining in the Entertainment Industry – Jackson Lewis

    Future Script: How Generative AI Is Transforming Collective Bargaining in Entertainment

    The SBA’s live-entertainment bailout was supposed to end two years ago. We still don’t know how $1.5 billion was spent. – Yahoo Home

    $1.5 Billion Live-Entertainment Bailout: Two Years Later, Where Did the Money Go?

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Microsoft Seeks to Extend Access to OpenAI Technology – PYMNTS.com

    Microsoft Aims to Broaden Access to OpenAI Technology

    Livonia police use grappler technology to stop drunk driver – ClickOnDetroit | WDIV Local 4

    Livonia Police Deploy Grappler Technology to Safely Stop Drunk Driver

    Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

    How Robotic Technology is Revolutionizing Knee Replacement Surgery

    Cognizant Technology Solutions Corp (CTSH) Q2 2025 Earnings Call Highlights: Strong Revenue … – Yahoo.co

    Cognizant Q2 2025 Earnings: Impressive Revenue Growth and Key Takeaways

    Revving Up The U.S. Technology Engine – Forbes

    Revving Up The U.S. Technology Engine – Forbes

    More than just a hockey player – Rochester Institute of Technology Athletics

    Beyond the Ice: The Inspiring Journey of a Remarkable Athlete from Rochester Institute of Technology

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Go-to entertainment: why gaming was made for the toilet – The Guardian

    Why Gaming Is the Ultimate Way to Pass Time in the Bathroom

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Sens. Blackburn, Warnock introduce CREATE Act to provide tax relief to music creators – Yahoo Home

    Sens. Blackburn and Warnock Launch CREATE Act to Deliver Tax Relief for Music Creators

    That’s (Political) Entertainment: When Theatre Meets Politics

    Future Script: How Generative AI Is Changing Collective Bargaining in the Entertainment Industry – Jackson Lewis

    Future Script: How Generative AI Is Transforming Collective Bargaining in Entertainment

    The SBA’s live-entertainment bailout was supposed to end two years ago. We still don’t know how $1.5 billion was spent. – Yahoo Home

    $1.5 Billion Live-Entertainment Bailout: Two Years Later, Where Did the Money Go?

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Microsoft Seeks to Extend Access to OpenAI Technology – PYMNTS.com

    Microsoft Aims to Broaden Access to OpenAI Technology

    Livonia police use grappler technology to stop drunk driver – ClickOnDetroit | WDIV Local 4

    Livonia Police Deploy Grappler Technology to Safely Stop Drunk Driver

    Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

    How Robotic Technology is Revolutionizing Knee Replacement Surgery

    Cognizant Technology Solutions Corp (CTSH) Q2 2025 Earnings Call Highlights: Strong Revenue … – Yahoo.co

    Cognizant Q2 2025 Earnings: Impressive Revenue Growth and Key Takeaways

    Revving Up The U.S. Technology Engine – Forbes

    Revving Up The U.S. Technology Engine – Forbes

    More than just a hockey player – Rochester Institute of Technology Athletics

    Beyond the Ice: The Inspiring Journey of a Remarkable Athlete from Rochester Institute of Technology

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

“Unusually Massive” – Astronomers Discover a Planet That Shouldn’t Exist

December 5, 2023
in Science
“Unusually Massive” – Astronomers Discover a Planet That Shouldn’t Exist
Share on FacebookShare on Twitter

Large Exoplanet Art

Penn State researchers have discovered an extraordinarily massive planet orbiting an ultracool dwarf star, challenging existing theories of planet and star formation. Named LHS 3154b, the planet’s mass is over 13 times that of Earth, while its host star, LHS 3154, has a mass significantly lower than the sun. Credit: SciTechDaily.com

Researchers at Penn State have discovered an unusually massive planet, LHS 3154b, orbiting an ultracool dwarf star. This finding, contradicting current theories, prompts a reassessment of star and planet formation processes.

The discovery of a planet that is far too massive for its sun is calling into question what was previously understood about the formation of planets and their solar systems, according to Penn State researchers.

In a paper published on November 30 in the journal Science, researchers report the discovery of a planet more than 13 times as massive as Earth orbiting the “ultracool” star LHS 3154, which itself is nine times less massive than the sun. The mass ratio of the newly found planet with its host star is more than 100 times higher than that of Earth and the sun.

This video is an artistic representation of a newly discovered system, LHS 3154, which contains a planet far more massive for its sun than current models would predict. Credit: Abigail Hope Minnich

Challenging Current Theories

The finding reveals the most massive known planet in a close orbit around an ultracool dwarf star, the least massive and coldest stars in the universe. The discovery goes against what current theories would predict for planet formation around small stars and marks the first time a planet with such high mass has been spotted orbiting such a low-mass star.

“This discovery really drives home the point of just how little we know about the universe,” said Suvrath Mahadevan, the Verne M. Willaman Professor of Astronomy and Astrophysics at Penn State and co-author on the paper. “We wouldn’t expect a planet this heavy around such a low-mass star to exist.”

Mass Comparison of LHS 3154 System

An artistic rendering of the mass comparison of LHS 3154 system and our own Earth and sun. Credit: Penn State University

Formation of Stars and Planets

He explained that stars are formed from large clouds of gas and dust. After the star is formed, the gas and dust remain as disks of material orbiting the newborn star, which can eventually develop into planets.

“The planet-forming disk around the low-mass star LHS 3154 is not expected to have enough solid mass to make this planet,” Mahadevan said. “But it’s out there, so now we need to reexamine our understanding of how planets and stars form.”

Penn State researchers Suvrath Mahadevan and Megan Delamer explain the discovery of a massive planet orbiting a small star. Credit: Penn State University

Discovery Using HPF

The researchers spotted the oversized planet, named LHS 3154b, using an astronomical spectrograph built at Penn State by a team of scientists led by Mahadevan. The instrument, called the Habitable Zone Planet Finder or HPF, was designed to detect planets orbiting the coolest stars outside our solar system with the potential for having liquid water — a key ingredient for life — on their surfaces.

Detecting Planets Around Ultracool Stars

While such planets are very difficult to detect around stars like our sun, the low temperature of ultracool stars means that planets capable of having liquid water on their surface are much closer to their star relative to Earth and the sun. This shorter distance between these planets and their stars, combined with the low mass of the ultracool stars, results in a detectable signal announcing the presence of the planet, Mahadevan explained.

“Think about it like the star is a campfire. The more the fire cools down, the closer you’ll need to get to that fire to stay warm,” Mahadevan said. “The same is true for planets. If the star is colder, then a planet will need to be closer to that star if it is going to be warm enough to contain liquid water. If a planet has a close enough orbit to its ultracool star, we can detect it by seeing a very subtle change in the color of the star’s spectra or light as it is tugged on by an orbiting planet.”

Possible View From LHS 3154b

Artistic rendering of the possible view from LHS 3154b towards its low mass host star. Given its large mass, LHS 3154b probably has a Neptune-like composition. Credit: Penn State

Significance of HPF

Located at the Hobby-Eberly Telescope at the McDonald Observatory in Texas, the HPF provides some of the highest precision measurements to date of such infrared signals from nearby stars.

“Making the discovery with HPF was extra special, as it is a new instrument that we designed, developed and built from the ground-up for the purpose of looking at the uncharted planet population around the lowest mass stars,” said Guðmundur Stefánsson, NASA Sagan Fellow in Astrophysics at Princeton University and lead author on the paper, who helped develop HPF and worked on the study as a graduate student at Penn State. “Now we are reaping the rewards, learning new and unexpected aspects of this exciting population of planets orbiting some of the most nearby stars.”

The instrument has already yielded critical information in the discovery and confirmation of new planets, Stefánsson explained, but the discovery of the planet LHS 3154b exceeded all expectations.

Rethinking Planet Formation Theories

“Based on current survey work with the HPF and other instruments, an object like the one we discovered is likely extremely rare, so detecting it has been really exciting,” said Megan Delamer, astronomy graduate student at Penn State and co-author on the paper. “Our current theories of planet formation have trouble accounting for what we’re seeing.”

In the case of the massive planet discovered orbiting the star LHS 3154, the heavy planetary core inferred by the team’s measurements would require a larger amount of solid material in the planet-forming disk than current models would predict, Delamer explained. The finding also raises questions about prior understandings of the formation of stars, as the dust-mass and dust-to-gas ratio of the disk surrounding stars like LHS 3154 — when they were young and newly formed — would need to be 10 times higher than what was observed in order to form a planet as massive as the one the team discovered.

“What we have discovered provides an extreme test case for all existing planet formation theories,” Mahadevan said. “This is exactly what we built HPF to do, to discover how the most common stars in our galaxy form planets — and to find those planets.”

Reference: “A Neptune-mass exoplanet in close orbit around a very low-mass star challenges formation models” by Guðmundur Stefánsson, Suvrath Mahadevan, Yamila Miguel, Paul Robertson, Megan Delamer, Shubham Kanodia, Caleb I. Cañas, Joshua N. Winn, Joe P. Ninan, Ryan C. Terrien, Rae Holcomb, Eric B. Ford, Brianna Zawadzki, Brendan P. Bowler, Chad F. Bender, William D. Cochran, Scott Diddams, Michael Endl, Connor Fredrick, Samuel Halverson, Fred Hearty, Gary J. Hill, Andrea S. J. Lin, Andrew J. Metcalf, Andrew Monson, Lawrence Ramsey, Arpita Roy, Christian Schwab, Jason T. Wright and Gregory Zeimann, 30 November 2023, Science.
DOI: 10.1126/science.abo0233

Other Penn State authors on the paper are Eric Ford, Brianna Zawadzki, Fred Hearty, Andrea Lin, Lawrence Ramsey, and Jason Wright. Other authors on the paper are Joshua Winn of Princeton University, Yamila Miguel of the University of Leiden, Paul Robertson of the University of California, Irvine, and Rae Holcomb of the University of California, Shubham Kanodia of the Carnegie Institution for Science, Caleb Cañas of the NASA Goddard Space Flight Center, Joe Ninan of India’s Tata Institute of Fundamental Research, Ryan Terrien of Carleton College, Brendan Bowler, William Cochran, Michael Endl and Gary Hill of The University of Texas at Austin, Chad Bender of The University of Arizona, Scott Diddams, Connor Fredrick and Andrew Metcalf of the University of Colorado, Samuel Halverson of California Institute of Technology’s Jet Propulsion Laboratory, Andrew Monson of the University of Arizona, Arpita Roy of Johns Hopkins University, Christian Schwab of Australia‘s Macquarie University, and Gregory Zeimann of the Hobby-Eberly Telescope at UT Austin.

The work was funded by the Center for Exoplanets and Habitable Worlds at Penn State, the Pennsylvania Space Grant Consortium, the National Aeronautics and Space Administration, the National Science Foundation, and the Heising-Simons Foundation.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/unusually-massive-astronomers-discover-a-planet-that-shouldnt-exist/

Tags: “UnusuallyMassivescience
Previous Post

La OPS, el BID y el Banco Mundial lanzan alianza para fortalecer la atención primaria de salud en las Américas

Next Post

Nasal Spray Demonstrates Significant Success in Treating Depression

Study reveals China’s ecological red lines offer blueprint for biodiversity protection – Phys.org

Study reveals China’s ecological red lines offer blueprint for biodiversity protection – Phys.org

August 3, 2025
What do TSA bag scanners actually see? – Popular Science

What do TSA bag scanners actually see? – Popular Science

August 3, 2025
Why does your mind goes ‘blank’? New brain scans reveal the surprising answer – Live Science

Why does your mind goes ‘blank’? New brain scans reveal the surprising answer – Live Science

August 3, 2025
U.S. POINTER Study shows lifestyle program improves cognition in older adults – University of California – Davis Health

Lifestyle Program Boosts Cognitive Health in Older Adults, New Study Finds

August 3, 2025
World Championships, Day Eight Finals: Kliment Kolesnikov Blazes to Title in 50 Backstroke; Tie for Silver – Swimming World

Kliment Kolesnikov Blazes to Victory in 50 Backstroke as Day Eight of World Championships Ends with a Silver Medal Tie

August 3, 2025
Bond investors warm to risk, with Fed staying put in ‘Goldilocks’ economy – Reuters

Bond Investors Take Bold Steps as Fed Maintains Steady Course in a ‘Goldilocks’ Economy

August 3, 2025
Go-to entertainment: why gaming was made for the toilet – The Guardian

Why Gaming Is the Ultimate Way to Pass Time in the Bathroom

August 3, 2025
Covenant Health offers immunizations, activities for kids at Back to School Bash – KCBD

Covenant Health’s Back to School Bash: A Fun-Filled Immunization and Activities Event for Kids

August 3, 2025
Trump tells Schumer to ‘go to hell’ as Senate heads home after failed attempt to strike deal on nominees – CNN

Trump tells Schumer to ‘go to hell’ as Senate heads home after failed attempt to strike deal on nominees – CNN

August 3, 2025
Microsoft Seeks to Extend Access to OpenAI Technology – PYMNTS.com

Microsoft Aims to Broaden Access to OpenAI Technology

August 3, 2025

Categories

Archives

August 2025
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jul    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (752)
  • Economy (777)
  • Entertainment (21,654)
  • General (16,263)
  • Health (9,814)
  • Lifestyle (785)
  • News (22,149)
  • People (777)
  • Politics (786)
  • Science (15,990)
  • Sports (21,272)
  • Technology (15,754)
  • World (758)

Recent News

Study reveals China’s ecological red lines offer blueprint for biodiversity protection – Phys.org

Study reveals China’s ecological red lines offer blueprint for biodiversity protection – Phys.org

August 3, 2025
What do TSA bag scanners actually see? – Popular Science

What do TSA bag scanners actually see? – Popular Science

August 3, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version