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trans-Neptunian object

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Small Trans-Neptunian World Has An Atmosphere, Laughing In The Face Of Astronomers And Expected Physicsa spherical world with a thin atmosphere is in the foreground and behind it there are multiple copies of the same star in a line, dimming as it encounters the atmosphere.

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Small Trans-Neptunian World Has An Atmosphere, Laughing In The Face Of Astronomers And Expected Physicsa spherical world with a thin atmosphere is in the foreground and behind it there are multiple copies of the same star in a line, dimming as it encounters the atmosphere.
space-iconAstronomy

Small Trans-Neptunian World Has An Atmosphere, Laughing In The Face Of Astronomers And Expected Physics

clock-iconMay 4, 2026

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Over 11,000 New Asteroids, Including 33 Near-Earth Objects, Spotted By Rubin Observatory In Just A Few WeeksThe model shows a total of almost 12,700 asteroids that were discovered with Rubin over the span of 1.6 years: 73 were discovered during the first early test observations using Rubin’s Commissioning Camera in late 2024 and released as part of Rubin’s Data Preview 1 in Summer 2025; 1514 were discovered during First Look observations in April and May 2025; and the recent 11,000+ asteroids were discovered using observations taken during Rubin’s early optimization surveys in Summer 2025.

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Over 11,000 New Asteroids, Including 33 Near-Earth Objects, Spotted By Rubin Observatory In Just A Few WeeksThe model shows a total of almost 12,700 asteroids that were discovered with Rubin over the span of 1.6 years: 73 were discovered during the first early test observations using Rubin’s Commissioning Camera in late 2024 and released as part of Rubin’s Data Preview 1 in Summer 2025; 1514 were discovered during First Look observations in April and May 2025; and the recent 11,000+ asteroids were discovered using observations taken during Rubin’s early optimization surveys in Summer 2025.
space-iconAstronomy

Over 11,000 New Asteroids, Including 33 Near-Earth Objects, Spotted By Rubin Observatory In Just A Few Weeks

clock-iconApril 3, 2026

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A "Very Old, Undisturbed Structure" May Have Been Discovered Beyond The Orbit Of Neptune, 43 AU From The SunKuiper belt objects captured by Hubble.

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A "Very Old, Undisturbed Structure" May Have Been Discovered Beyond The Orbit Of Neptune, 43 AU From The SunKuiper belt objects captured by Hubble.
space-iconAstronomy

A "Very Old, Undisturbed Structure" May Have Been Discovered Beyond The Orbit Of Neptune, 43 AU From The Sun

clock-iconNovember 20, 2025
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Newest Member Of The Solar System Just Announced – And It’s In An Extreme OrbitA composite image showing the five dwarf planets recognized by the International Astronomical Union, plus the newly discovered trans-Neptunian object 2017 OF201.

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Newest Member Of The Solar System Just Announced – And It’s In An Extreme OrbitA composite image showing the five dwarf planets recognized by the International Astronomical Union, plus the newly discovered trans-Neptunian object 2017 OF201.
space-iconAstronomy

Newest Member Of The Solar System Just Announced – And It’s In An Extreme Orbit

clock-iconMay 22, 2025
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The Minor Planet Chiron Is Strange – And So Is Its IceArtist's representation of Chiron, the only-just-a-comet whose ices and surrounding gasses don't match.

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The Minor Planet Chiron Is Strange – And So Is Its IceArtist's representation of Chiron, the only-just-a-comet whose ices and surrounding gasses don't match.
space-iconAstronomy

The Minor Planet Chiron Is Strange – And So Is Its Ice

clock-iconDecember 30, 2024
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Our Solar System May Have Captured A Number Of Interstellar Objects‘Oumuamua captured by the William Herschel Telescope.

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Our Solar System May Have Captured A Number Of Interstellar Objects‘Oumuamua captured by the William Herschel Telescope.
space-iconAstronomy

Our Solar System May Have Captured A Number Of Interstellar Objects

clock-iconJune 27, 2024
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Unraveling The Icy Mystery Of The Birth Of Neptune And The Worlds Beyondartist impression of two asteroids near each other

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Unraveling The Icy Mystery Of The Birth Of Neptune And The Worlds Beyondartist impression of two asteroids near each other
space-iconAstronomy

Unraveling The Icy Mystery Of The Birth Of Neptune And The Worlds Beyond

clock-iconMarch 11, 2024
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More Evidence Supporting Planet Nine Revealedarticle image

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More Evidence Supporting Planet Nine Revealedarticle image
space-iconSpace and Physics

More Evidence Supporting Planet Nine Revealed

clock-iconJuly 13, 2017

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Extreme New Objects Found At The Edge of The Solar Systemarticle image

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Extreme New Objects Found At The Edge of The Solar Systemarticle image
space-iconSpace and Physics

Extreme New Objects Found At The Edge of The Solar System

clock-iconAugust 30, 2016

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New Dwarf Planet Discovered At The Edge Of The Solar Systemarticle image

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New Dwarf Planet Discovered At The Edge Of The Solar Systemarticle image
space-iconSpace and Physics

New Dwarf Planet Discovered At The Edge Of The Solar System

clock-iconJuly 12, 2016