Planetary Formation
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New Study Suggests Uranus and Neptune May Contain More Rock Than Ice
New models suggest Uranus and Neptune may contain significantly more rock than ice beneath their atmospheres. The findings challenge decades of planetary science and could lead to a reclassification of the outer planets.
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A Visitor from Another Star: Interstellar Comet Reveals Alien Origins
Observations of 3I/ATLAS reveal high levels of heavy water, suggesting it formed in an extremely cold star system. The discovery offers new insights into how planets form beyond our solar system.
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New Orbital Clues Reveal How Hot Jupiters Moved Close to Their Stars
Researchers reveal some hot Jupiters drifted inward smoothly through protoplanetary disks, offering clues to planetary system formation and stability.
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Mars' Interior Holds Evidence Of Violent Early History, NASA Scientists Confirm
NASA scientists have discovered massive fragments of ancient planetary collisions buried deep in Mars' mantle, using seismic data from the InSight lander.
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James Webb Telescope Detects Potential Gas Giant Exoplanet Just 4 Light-Years Away
Astronomers using JWST have spotted a possible gas giant orbiting Alpha Centauri A, only 4 light-years away. If confirmed, it would be the closest exoplanet to a Sun-like star ever imaged. The discovery could challenge current models of planetary formation in binary systems and open new opportunities for studying nearby worlds.
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New Interstellar Object 3I/ATLAS Could Reveal Secrets of Distant Worlds
Astronomers have confirmed the arrival of 3I/ATLAS, only the third interstellar object ever spotted in our solar system. First seen on July 1, 2025, by the ATLAS survey team in Chile, it was quickly identified by its unusual hyperbolic orbit and comet-like tail. Larger and brighter than either 1I/ʻOumuamua or 2I/Borisov, 3I/ATLAS is estimated to b...
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Jupiter Was Once Twice Its Size - And Its Magnetic Field Could Fry Spacecraft
Jupiter's early evolution and gravitational influence played a crucial role in shaping the solar system's structure and planetary orbits, earning it the title of the solar system's "architect."
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Primordial Helium-3 May Be Locked in Earth’s Core, Study Finds
Helium-3, an isotope formed during the solar system's birth, may be trapped in Earth's core, a study suggests. Researchers at the University of Tokyo found that helium can mix with iron at extreme heat and pressure, allowing it to remain in Earth's solid core. This discovery could help determine how quickly the planet formed, with a rapid formation...
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JWST Unveils HH 30’s Protoplanetary Disk, Showing Dust Grains and Jets
The James Webb Space Telescope has captured an extraordinary image of HH 30, a protoplanetary disk in the Taurus constellation. The dense dust disk conceals the central star, while bright jets extend outward, interacting with surrounding gas. Microscopic dust grains within the disk have been identified, playing a crucial role in planetary formation...
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Ancient Space Rocks May Hold Clues To Earth's Formation, Says NASA
The image shows a canister, which is a gray metal cylinder. Inside, dark, powdery asteroid sample material can be seen.
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New Study Suggests Uranus and Neptune May Contain More Rock Than Ice
New models suggest Uranus and Neptune may contain significantly more rock than ice beneath their atmospheres. The findings challenge decades of planetary science and could lead to a reclassification of the outer planets.
-
A Visitor from Another Star: Interstellar Comet Reveals Alien Origins
Observations of 3I/ATLAS reveal high levels of heavy water, suggesting it formed in an extremely cold star system. The discovery offers new insights into how planets form beyond our solar system.
-
New Orbital Clues Reveal How Hot Jupiters Moved Close to Their Stars
Researchers reveal some hot Jupiters drifted inward smoothly through protoplanetary disks, offering clues to planetary system formation and stability.
-
Mars' Interior Holds Evidence Of Violent Early History, NASA Scientists Confirm
NASA scientists have discovered massive fragments of ancient planetary collisions buried deep in Mars' mantle, using seismic data from the InSight lander.
-
James Webb Telescope Detects Potential Gas Giant Exoplanet Just 4 Light-Years Away
Astronomers using JWST have spotted a possible gas giant orbiting Alpha Centauri A, only 4 light-years away. If confirmed, it would be the closest exoplanet to a Sun-like star ever imaged. The discovery could challenge current models of planetary formation in binary systems and open new opportunities for studying nearby worlds.
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New Interstellar Object 3I/ATLAS Could Reveal Secrets of Distant Worlds
Astronomers have confirmed the arrival of 3I/ATLAS, only the third interstellar object ever spotted in our solar system. First seen on July 1, 2025, by the ATLAS survey team in Chile, it was quickly identified by its unusual hyperbolic orbit and comet-like tail. Larger and brighter than either 1I/ʻOumuamua or 2I/Borisov, 3I/ATLAS is estimated to b...
-
Jupiter Was Once Twice Its Size - And Its Magnetic Field Could Fry Spacecraft
Jupiter's early evolution and gravitational influence played a crucial role in shaping the solar system's structure and planetary orbits, earning it the title of the solar system's "architect."
-
Primordial Helium-3 May Be Locked in Earth’s Core, Study Finds
Helium-3, an isotope formed during the solar system's birth, may be trapped in Earth's core, a study suggests. Researchers at the University of Tokyo found that helium can mix with iron at extreme heat and pressure, allowing it to remain in Earth's solid core. This discovery could help determine how quickly the planet formed, with a rapid formation...
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JWST Unveils HH 30’s Protoplanetary Disk, Showing Dust Grains and Jets
The James Webb Space Telescope has captured an extraordinary image of HH 30, a protoplanetary disk in the Taurus constellation. The dense dust disk conceals the central star, while bright jets extend outward, interacting with surrounding gas. Microscopic dust grains within the disk have been identified, playing a crucial role in planetary formation...
-
Ancient Space Rocks May Hold Clues To Earth's Formation, Says NASA
The image shows a canister, which is a gray metal cylinder. Inside, dark, powdery asteroid sample material can be seen.
