Planetary System
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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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Hubble Observations Turn Exoplanet Into Dust; Reveal Rare Double Asteroid Impact in Nearby System
NASA’s Hubble Space Telescope has revealed that a vanished exoplanet near the star Fomalhaut was never a planet at all. Scientists discovered two rare, violent collisions between asteroid-sized bodies, producing glowing debris clouds that briefly mimicked planets. The findings offer a rare glimpse into how planetary systems evolve and how mislead...
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Interstellar Comet 3I/ATLAS Shows Wobbling Jets in Rare Sun-Facing Tail, Surprising Astronomers
Astronomers have detected strange wobbling jets in the rare sun-facing tail of interstellar comet 3I/ATLAS. Observed as the comet neared the Sun, the shifting jets reveal new details about how material escapes from comets formed around other stars, offering rare insight into alien planetary systems.
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NASA Captures Asteroids Colliding Around Nearby Star Fomalhaut For The First Time
The team will continue to monitor CS2 using Hubble for the next three years to observe its evolution.
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Hubble Captures Rare Collision in Nearby Planetary System, Revealing Violent Planet Formation
Astronomers using NASA’s Hubble Space Telescope have witnessed rare collisions between rocky bodies in the Fomalhaut system. The glowing debris clouds created by these impacts offer a unique glimpse into how planets form and highlight challenges in identifying true exoplanets.
-
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...
-
Hubble Observations Turn Exoplanet Into Dust; Reveal Rare Double Asteroid Impact in Nearby System
NASA’s Hubble Space Telescope has revealed that a vanished exoplanet near the star Fomalhaut was never a planet at all. Scientists discovered two rare, violent collisions between asteroid-sized bodies, producing glowing debris clouds that briefly mimicked planets. The findings offer a rare glimpse into how planetary systems evolve and how mislead...
-
Interstellar Comet 3I/ATLAS Shows Wobbling Jets in Rare Sun-Facing Tail, Surprising Astronomers
Astronomers have detected strange wobbling jets in the rare sun-facing tail of interstellar comet 3I/ATLAS. Observed as the comet neared the Sun, the shifting jets reveal new details about how material escapes from comets formed around other stars, offering rare insight into alien planetary systems.
-
NASA Captures Asteroids Colliding Around Nearby Star Fomalhaut For The First Time
The team will continue to monitor CS2 using Hubble for the next three years to observe its evolution.
-
Hubble Captures Rare Collision in Nearby Planetary System, Revealing Violent Planet Formation
Astronomers using NASA’s Hubble Space Telescope have witnessed rare collisions between rocky bodies in the Fomalhaut system. The glowing debris clouds created by these impacts offer a unique glimpse into how planets form and highlight challenges in identifying true exoplanets.
