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Lava Worlds

All articles tagged with #lava worlds

science21 days ago•120 min saved

Coldest Known Lava World, HD 3167 b, Defies Expectations by Retaining an Atmosphere

Astronomers have identified HD 3167 b, a rocky super-Earth located 154 light-years away, as the coldest known lava world with evidence of an atmosphere. Despite orbiting its host star in just one Earth day, the planet retains an atmosphere, defying expectations that such close proximity would strip away gases. This discovery, published in The Astrophysical Journal Letters, provides a critical data point for understanding the temperature threshold at which rocky planets lose their atmospheres and offers insights into the early, molten stages of Earth's formation.

via Space|

#atmospheric-science #exoplanets #james-webb-space-telescope

science1 year ago•4 min saved

Lava Planets: Unlocking Secrets of Exoplanetary Fire and Earth's Past

Astronomers are studying lava planets—hot, rocky exoplanets with surface magma oceans—using models and upcoming observations from the James Webb Space Telescope to understand their formation, evolution, and atmospheric composition, revealing insights into their internal dynamics and age.

via Space|

#exoplanets #geophysical-modeling #james-webb-space-telescope

space3 years ago•2 min saved

"Scientists Reveal Astonishing Secrets of Fiery Lava Worlds"

A new study published in The Astrophysical Journal explores the strange and fascinating world of lava planets, which make up almost half of all rocky exoplanets discovered so far. These large lava worlds, unlike anything in our solar system, have seas of liquid magma on their surfaces due to their close proximity to their stars. Although inhospitable to life, these "super-Earths" can provide insights into the early evolution of terrestrial planets. The study reveals three probable types of lava worlds and raises exciting new questions about these unique planets.

via Forbes|

#exoplanets #lava-worlds #planetary-science

science3 years ago•4 min saved

"Unveiling the Enigmatic Secrets of Lava Worlds: A Groundbreaking Study"

A new study published in The Astrophysical Journal explores the properties and evolution of lava worlds, massive exoplanets with magma oceans. These planets, found close to their host stars, have extreme surface temperatures and inhospitable conditions. The study reveals that magma oceans can affect the size and structure of these planets, making them denser and impacting their mantles. Understanding lava worlds can provide insights into the evolution of terrestrial planets, including Earth. The research suggests that different compositions of magma oceans can influence the trapping of volatile elements, which has implications for habitability. Density is not the best parameter to characterize lava worlds, and scientists should focus on other factors like surface gravity.

via Phys.org|

#exoplanets #lava-worlds #magma-oceans