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Another Comet 3I/ATLAS Record Got Us Asking: How Do We Know An Object Is Interstellar?birds eye view of the solar system with the roughly circular orbit of the planets and the orbit of comet atlas which looks like a straight line with a small bend.

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Another Comet 3I/ATLAS Record Got Us Asking: How Do We Know An Object Is Interstellar?birds eye view of the solar system with the roughly circular orbit of the planets and the orbit of comet atlas which looks like a straight line with a small bend.
space-iconAstronomy

Another Comet 3I/ATLAS Record Got Us Asking: How Do We Know An Object Is Interstellar?

clock-iconOctober 8, 2025
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We May Have Our Third Interstellar Visitor And It’s Nothing Like The Previous TwoEstimates of A11pl3Z's orbit are changing fast, but it is clear that it barely bends on its way past the Sun, being very much a visitor from outside the Solar System.

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We May Have Our Third Interstellar Visitor And It’s Nothing Like The Previous TwoEstimates of A11pl3Z's orbit are changing fast, but it is clear that it barely bends on its way past the Sun, being very much a visitor from outside the Solar System.
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space-iconAstronomy

We May Have Our Third Interstellar Visitor And It’s Nothing Like The Previous Two

clock-iconJuly 2, 2025
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Why A Philosopher Is Worried About People Believing Aliens Have Visited EarthAncient Egyptian-style illustration of a UFO landing above a pyramid and a group of people

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Why A Philosopher Is Worried About People Believing Aliens Have Visited EarthAncient Egyptian-style illustration of a UFO landing above a pyramid and a group of people
technologysociety

Why A Philosopher Is Worried About People Believing Aliens Have Visited Earth

clock-iconSeptember 17, 2024
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Animation Shows Project Lyra's Ridiculous Maneuver To Catch Interstellar AsteroidMariner 10's trajectory.

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Animation Shows Project Lyra's Ridiculous Maneuver To Catch Interstellar AsteroidMariner 10's trajectory.
space-iconSpace and Physics

Animation Shows Project Lyra's Ridiculous Maneuver To Catch Interstellar Asteroid

clock-iconMay 2, 2024
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What Caused Our First Interstellar Visitor's Non-Gravitational Acceleration?Oumuamua captured by the William Herschel Telescope.

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What Caused Our First Interstellar Visitor's Non-Gravitational Acceleration?Oumuamua captured by the William Herschel Telescope.
space-iconSpace and Physics

What Caused Our First Interstellar Visitor's Non-Gravitational Acceleration?

clock-iconApril 25, 2024
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What Would It Take To Catch An Interstellar Visitor Like 'Oumuamua?Artist's impression of Oumuamua, although it may more closely resemble its fellow interplanetary object Borisov

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What Would It Take To Catch An Interstellar Visitor Like 'Oumuamua?Artist's impression of Oumuamua, although it may more closely resemble its fellow interplanetary object Borisov
space-iconAstronomy

What Would It Take To Catch An Interstellar Visitor Like 'Oumuamua?

clock-iconMarch 4, 2024
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Mysterious Acceleration Of Earth’s First Interstellar Visitor Finally ExplainedAn artist's depiction of the interstellar comet 'Oumuamua, as it warmed up in its approach to the sun and outgassed hydrogen (white mist), which slightly altered its orbit.

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Mysterious Acceleration Of Earth’s First Interstellar Visitor Finally ExplainedAn artist's depiction of the interstellar comet 'Oumuamua, as it warmed up in its approach to the sun and outgassed hydrogen (white mist), which slightly altered its orbit.
space-iconAstronomy

Mysterious Acceleration Of Earth’s First Interstellar Visitor Finally Explained

clock-iconMarch 22, 2023
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Comets From Outside Our Solar System Might Visit Us Often, Study Suggestsarticle image

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Comets From Outside Our Solar System Might Visit Us Often, Study Suggestsarticle image
space-iconAstronomy

Comets From Outside Our Solar System Might Visit Us Often, Study Suggests

clock-iconAugust 23, 2021
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Interstellar Visitor 'Oumuamua May Be A Shard Of A Pluto-Like Exo-Worldarticle image

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Interstellar Visitor 'Oumuamua May Be A Shard Of A Pluto-Like Exo-Worldarticle image
space-iconSpace and Physics

Interstellar Visitor 'Oumuamua May Be A Shard Of A Pluto-Like Exo-World

clock-iconMarch 18, 2021
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Mysterious Makeup Of Interstellar ‘Oumuamua May Have Just Been Explainedarticle image

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Mysterious Makeup Of Interstellar ‘Oumuamua May Have Just Been Explainedarticle image
space-iconSpace and Physics

Mysterious Makeup Of Interstellar ‘Oumuamua May Have Just Been Explained

clock-iconJune 4, 2020

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NASA Releases Everything It Knows About The Possible "Alien Spacecraft" That Passed Through Our Solar Systemarticle image

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NASA Releases Everything It Knows About The Possible "Alien Spacecraft" That Passed Through Our Solar Systemarticle image
space-iconSpace and Physics

NASA Releases Everything It Knows About The Possible "Alien Spacecraft" That Passed Through Our Solar System

clock-iconNovember 15, 2018
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An Alien Spacecraft May Have Passed Through Our Solar System Last Year, Claim Scientistsarticle image

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An Alien Spacecraft May Have Passed Through Our Solar System Last Year, Claim Scientistsarticle image
space-iconSpace and Physics

An Alien Spacecraft May Have Passed Through Our Solar System Last Year, Claim Scientists

clock-iconNovember 5, 2018
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Oumuamua Is An Interstellar Comet After Allarticle image

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Oumuamua Is An Interstellar Comet After Allarticle image
space-iconSpace and Physics

Oumuamua Is An Interstellar Comet After All

clock-iconJune 27, 2018

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An Interstellar Asteroid Might Have Been Found Hiding Inside Our Solar System – And We Could Visit Itarticle image

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An Interstellar Asteroid Might Have Been Found Hiding Inside Our Solar System – And We Could Visit Itarticle image
space-iconSpace and Physics

An Interstellar Asteroid Might Have Been Found Hiding Inside Our Solar System – And We Could Visit It

clock-iconMay 21, 2018

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We Now Know That Interstellar Space Object ‘Oumuamua Is Definitely Not An Alien Spacecraftarticle image

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We Now Know That Interstellar Space Object ‘Oumuamua Is Definitely Not An Alien Spacecraftarticle image
space-iconSpace and Physics

We Now Know That Interstellar Space Object ‘Oumuamua Is Definitely Not An Alien Spacecraft

clock-iconApril 13, 2018