Planetary System
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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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NASA Chief Calls For Making Pluto A Planet Again At US Senate Hearing
He also said that NASA is working on research papers that they would like to bring forward within the scientific community to revisit the discussion.
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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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Uranus’ Outer Rings May Reveal Hidden Moons, Scientists Say
New observations of Uranus reveal its outer rings contain ice and organic material, suggesting hidden moonlets. The findings offer new clues about the planet’s ring system and the formation of its mysterious satellites.
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10-Year-Old Writes To NASA To Restore Pluto's Planet Status, Agency Responds
In the letter, she apologised for any handwriting or spelling mistakes, making her letter even more emotional.
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Why Jupiter Has Four Giant Moons While Saturn Has Just One, Study Explains
Scientists suggest the strong magnetic field of Jupiter created regions for multiple large moons to form, unlike Saturn. The findings could reshape how astronomers search for exomoons in distant planetary systems.
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Rubin Observatory Discovers Over 11,000 Asteroids Within Weeks of Imaging
The Vera Rubin Observatory has discovered over 11,000 new asteroids within weeks of early observations. The findings highlight its ability to rapidly map the solar system and improve tracking of near-Earth objects for planetary defence.
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Hubble Telescope Captures Comet Reversing Its Rotation for the First Time
Using the Hubble Space Telescope, astronomers observed Comet 41P slow, stop, and reverse its spin due to gas jets. The rare phenomenon could mark the beginning of the comet’s breakup as it nears the end of its life.
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Scientists Discover High-Density Rocky Planet in LHS 1903 System That Defies Conventional Formation Models
ESA’s CHEOPS mission has uncovered a surprising rocky planet at the outer edge of the LHS 1903 system. Located 116 light-years away, the discovery defies expectations that outer planets are gas giants. Scientists say the finding offers rare evidence that planets can form in gas-depleted environments, challenging current planetary formation models...
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Astronomers Discover "Inside-Out" Planetary System With Rocky World Beyond Gas Planets, Challenging Formation Theories
Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.
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Unique Inside-Out Planetary System Reveals Unexpected Rocky World on the Outer Edge
Astronomers have discovered a rare inside-out planetary system around LHS 1903, where a rocky planet exists beyond gas giants. Using ESA’s CHEOPS telescope, researchers found evidence that planets formed one after another in a gas-depleted environment, challenging long-standing theories about how planetary systems form and evolve across the galax...
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NASA’s TESS Captures First Images of Rare Interstellar Comet 3I/ATLAS
NASA’s Transiting Exoplanet Survey Satellite has captured rare images of interstellar comet 3I/ATLAS, only the third such object ever detected. Observations from January 2026 reveal the comet rotates every 15 hours and produces sunlight-driven jets, behaving much like Solar System comets. Scientists say studying 3I/ATLAS may unlock clues about th...
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New ALMA Images Reveal Complex Rings Left Behind by Planet Formation
Astronomers used ALMA to capture unprecedented images of young exoplanetary systems. The ARKS survey mapped 24 debris disks, revealing rings, gaps and collisions that trace planetary evolution. These snapshots expose chaotic transitional stages, helping scientists understand how newborn planets mature into stable systems like our own Solar System t...
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Rubin Observatory Discovers Fastest-Spinning Large Asteroid Ever Seen
Astronomers using the Vera C. Rubin Observatory have discovered asteroid 2025 MN45, the fastest-spinning large asteroid ever recorded. About 710 metres wide, the object completes one full rotation every 1.88 minutes—far quicker than any asteroid of similar size. The finding emerged from an early survey that detected nearly 2,000 new asteroids, in...
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Astronomers Measure Mass and Distance of a Rogue Planet for the First Time in History
Astronomers have measured the mass and distance of a rogue planet for the first time. Using observations from Earth and the Gaia space telescope, the planet was found to be just under Saturn’s mass and about 10,000 light-years away. The study highlights how free-floating planets are ejected from star systems and improves understanding of planetar...
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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.
-
NASA Chief Calls For Making Pluto A Planet Again At US Senate Hearing
He also said that NASA is working on research papers that they would like to bring forward within the scientific community to revisit the discussion.
-
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.
-
Uranus’ Outer Rings May Reveal Hidden Moons, Scientists Say
New observations of Uranus reveal its outer rings contain ice and organic material, suggesting hidden moonlets. The findings offer new clues about the planet’s ring system and the formation of its mysterious satellites.
-
10-Year-Old Writes To NASA To Restore Pluto's Planet Status, Agency Responds
In the letter, she apologised for any handwriting or spelling mistakes, making her letter even more emotional.
-
Why Jupiter Has Four Giant Moons While Saturn Has Just One, Study Explains
Scientists suggest the strong magnetic field of Jupiter created regions for multiple large moons to form, unlike Saturn. The findings could reshape how astronomers search for exomoons in distant planetary systems.
-
Rubin Observatory Discovers Over 11,000 Asteroids Within Weeks of Imaging
The Vera Rubin Observatory has discovered over 11,000 new asteroids within weeks of early observations. The findings highlight its ability to rapidly map the solar system and improve tracking of near-Earth objects for planetary defence.
-
Hubble Telescope Captures Comet Reversing Its Rotation for the First Time
Using the Hubble Space Telescope, astronomers observed Comet 41P slow, stop, and reverse its spin due to gas jets. The rare phenomenon could mark the beginning of the comet’s breakup as it nears the end of its life.
-
Scientists Discover High-Density Rocky Planet in LHS 1903 System That Defies Conventional Formation Models
ESA’s CHEOPS mission has uncovered a surprising rocky planet at the outer edge of the LHS 1903 system. Located 116 light-years away, the discovery defies expectations that outer planets are gas giants. Scientists say the finding offers rare evidence that planets can form in gas-depleted environments, challenging current planetary formation models...
-
Astronomers Discover "Inside-Out" Planetary System With Rocky World Beyond Gas Planets, Challenging Formation Theories
Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.
-
Unique Inside-Out Planetary System Reveals Unexpected Rocky World on the Outer Edge
Astronomers have discovered a rare inside-out planetary system around LHS 1903, where a rocky planet exists beyond gas giants. Using ESA’s CHEOPS telescope, researchers found evidence that planets formed one after another in a gas-depleted environment, challenging long-standing theories about how planetary systems form and evolve across the galax...
-
NASA’s TESS Captures First Images of Rare Interstellar Comet 3I/ATLAS
NASA’s Transiting Exoplanet Survey Satellite has captured rare images of interstellar comet 3I/ATLAS, only the third such object ever detected. Observations from January 2026 reveal the comet rotates every 15 hours and produces sunlight-driven jets, behaving much like Solar System comets. Scientists say studying 3I/ATLAS may unlock clues about th...
-
New ALMA Images Reveal Complex Rings Left Behind by Planet Formation
Astronomers used ALMA to capture unprecedented images of young exoplanetary systems. The ARKS survey mapped 24 debris disks, revealing rings, gaps and collisions that trace planetary evolution. These snapshots expose chaotic transitional stages, helping scientists understand how newborn planets mature into stable systems like our own Solar System t...
-
Rubin Observatory Discovers Fastest-Spinning Large Asteroid Ever Seen
Astronomers using the Vera C. Rubin Observatory have discovered asteroid 2025 MN45, the fastest-spinning large asteroid ever recorded. About 710 metres wide, the object completes one full rotation every 1.88 minutes—far quicker than any asteroid of similar size. The finding emerged from an early survey that detected nearly 2,000 new asteroids, in...
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Astronomers Measure Mass and Distance of a Rogue Planet for the First Time in History
Astronomers have measured the mass and distance of a rogue planet for the first time. Using observations from Earth and the Gaia space telescope, the planet was found to be just under Saturn’s mass and about 10,000 light-years away. The study highlights how free-floating planets are ejected from star systems and improves understanding of planetar...
