Inner Solar System
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- News
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New Study Finds Earth And Mars May Have Formed From Similar Material
Earth's Composition Closely Matches Mars, Suggests New Study On Planet's Origins
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A Nearby Planet May Have Formed the Moon Following a Collision With Early Earth: Study
A new analysis of Apollo samples and Earth rocks suggests that a nearby rocky planet, not a distant object, collided with early Earth and formed the moon. The study argues that this lost planet, Theia, originated in the inner solar system and shared Earth’s early neighbourhood, offering fresh insight into one of the most important events in our p...
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Study Traces Moon-Forming Impact to an Inner Solar System Neighbour Named Theia
A new isotopic study reveals that Theia—the Mars-sized body that struck Earth 4.5 billion years ago to form the Moon—likely originated in the inner Solar System, close to Earth’s birthplace. By comparing heavy-element isotope ratios in lunar rocks, Earth samples, and meteorites, researchers found identical signatures, showing both worlds form...
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Study Reveals Jupiter's Early Growth Prevented Earth From Being Pulled Into The Sun
The findings of this study were published on October 22 in the journal Science Advances.
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Meteorite From Outer Solar System Challenges Planet Formation Timeline in Early Solar System
A meteorite from the outer solar system may upend long-held beliefs about planetary formation. New research shows rocky planets like Earth may have formed at the same time as those beyond Jupiter. The findings challenge previous models and suggest a more synchronised origin for rocky worlds across the solar system, with major implications for plane...
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New Dwarf Planet Discovered Beyond Pluto, Hinting At Hidden 'Planet X'
The discovery of 2017 OF201 is significant, as it challenges the hypothesis of Planet Nine, a hypothetical planet thought to exist in the outer Solar System.
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Alpha Centauri May Have Sent Millions of Asteroids into the Solar System
A study proposes that Alpha Centauri could be contributing a significant number of asteroids to the solar system. Simulations indicate that around 50 objects from the neighboring star system may enter the Oort Cloud annually. While most pass through due to their high velocity, a few could travel inward. The frequency of such occurrences is expected...
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NASA Supercomputer Finds Spiral Structure in the Oort Cloud’s Inner Region
A NASA supercomputer model suggests that the Oort Cloud’s inner structure forms a spiral, influenced by galactic tides. The Oort Cloud, a distant icy shell surrounding the solar system, has remained unobservable due to its vast distance. Researchers believe this finding could redefine understanding of how comets originate and interact with cosmic...
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Super-Earth In the Solar System Could Have Rendered Our Planet Uninhabitable, Says Study
A recent study explores a hypothetical super-Earth between Mars and Jupiter, revealing its severe impact on Earth's orbit and climate. Conducted by Florida Institute of Technology scientists Emily Simpson and Howard Chen, the simulation demonstrates how such a planet’s gravity could destabilise neighbouring planets, causing erratic orbits and ext...
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Ancient Black Holes Might Be Passing Through Our Solar System Frequently, Study Claims
Primordial black holes, which may have formed shortly after the Big Bang, could pass through the solar system once per decade. These black holes are much lighter and smaller than typical black holes, yet their gravitational effects may help scientists uncover the mystery of dark matter. Detecting gravitational disruptions from these flybys might be...
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Researchers Explore Potential Star System in Milky Way Which Can Burst Into Supernova
A team of researchers have found that a quadruple star system – known as HD 74438 – could represent a new channel by which thermonuclear supernova explosions can occur in the universe. In their study published in the journal Nature Astronomy, they have shown that the gravitational effects of the outer binary system are changing the orbits of th...
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Meteorites Crucial For Earth May Have Formed In Outer Solar System: Study
A new study led by researchers at Tokyo Institute of Technology suggested that these asteroidal materials might have formed very far out in the early Solar System then been transported into the inner Solar System by chaotic mixing processes.
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Meteorites Reveal New Age of Moon: Study
The moon-forming giant impact was the inner solar system's biggest and most recent known collision. Its timing, however, is still uncertain.
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New Study Finds Earth And Mars May Have Formed From Similar Material
Earth's Composition Closely Matches Mars, Suggests New Study On Planet's Origins
-
A Nearby Planet May Have Formed the Moon Following a Collision With Early Earth: Study
A new analysis of Apollo samples and Earth rocks suggests that a nearby rocky planet, not a distant object, collided with early Earth and formed the moon. The study argues that this lost planet, Theia, originated in the inner solar system and shared Earth’s early neighbourhood, offering fresh insight into one of the most important events in our p...
-
Study Traces Moon-Forming Impact to an Inner Solar System Neighbour Named Theia
A new isotopic study reveals that Theia—the Mars-sized body that struck Earth 4.5 billion years ago to form the Moon—likely originated in the inner Solar System, close to Earth’s birthplace. By comparing heavy-element isotope ratios in lunar rocks, Earth samples, and meteorites, researchers found identical signatures, showing both worlds form...
-
Study Reveals Jupiter's Early Growth Prevented Earth From Being Pulled Into The Sun
The findings of this study were published on October 22 in the journal Science Advances.
-
Meteorite From Outer Solar System Challenges Planet Formation Timeline in Early Solar System
A meteorite from the outer solar system may upend long-held beliefs about planetary formation. New research shows rocky planets like Earth may have formed at the same time as those beyond Jupiter. The findings challenge previous models and suggest a more synchronised origin for rocky worlds across the solar system, with major implications for plane...
-
New Dwarf Planet Discovered Beyond Pluto, Hinting At Hidden 'Planet X'
The discovery of 2017 OF201 is significant, as it challenges the hypothesis of Planet Nine, a hypothetical planet thought to exist in the outer Solar System.
-
Alpha Centauri May Have Sent Millions of Asteroids into the Solar System
A study proposes that Alpha Centauri could be contributing a significant number of asteroids to the solar system. Simulations indicate that around 50 objects from the neighboring star system may enter the Oort Cloud annually. While most pass through due to their high velocity, a few could travel inward. The frequency of such occurrences is expected...
-
NASA Supercomputer Finds Spiral Structure in the Oort Cloud’s Inner Region
A NASA supercomputer model suggests that the Oort Cloud’s inner structure forms a spiral, influenced by galactic tides. The Oort Cloud, a distant icy shell surrounding the solar system, has remained unobservable due to its vast distance. Researchers believe this finding could redefine understanding of how comets originate and interact with cosmic...
-
Super-Earth In the Solar System Could Have Rendered Our Planet Uninhabitable, Says Study
A recent study explores a hypothetical super-Earth between Mars and Jupiter, revealing its severe impact on Earth's orbit and climate. Conducted by Florida Institute of Technology scientists Emily Simpson and Howard Chen, the simulation demonstrates how such a planet’s gravity could destabilise neighbouring planets, causing erratic orbits and ext...
-
Ancient Black Holes Might Be Passing Through Our Solar System Frequently, Study Claims
Primordial black holes, which may have formed shortly after the Big Bang, could pass through the solar system once per decade. These black holes are much lighter and smaller than typical black holes, yet their gravitational effects may help scientists uncover the mystery of dark matter. Detecting gravitational disruptions from these flybys might be...
-
Researchers Explore Potential Star System in Milky Way Which Can Burst Into Supernova
A team of researchers have found that a quadruple star system – known as HD 74438 – could represent a new channel by which thermonuclear supernova explosions can occur in the universe. In their study published in the journal Nature Astronomy, they have shown that the gravitational effects of the outer binary system are changing the orbits of th...
-
Meteorites Crucial For Earth May Have Formed In Outer Solar System: Study
A new study led by researchers at Tokyo Institute of Technology suggested that these asteroidal materials might have formed very far out in the early Solar System then been transported into the inner Solar System by chaotic mixing processes.
-
Meteorites Reveal New Age of Moon: Study
The moon-forming giant impact was the inner solar system's biggest and most recent known collision. Its timing, however, is still uncertain.
