Fwd: Is the `Dark Comet’ 1998 KY26 the Spacecraft Phobos 1?

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---------- Forwarded message ---------
From: Avi Loeb <subscriptions@medium.com>
Date: Sun, 31 May 2026 at 21:25
Subject: Is the `Dark Comet’ 1998 KY26 the Spacecraft Phobos 1?
To: <zvagoman@gmail.com>

Dark comets are a proposed class of curious hybrids between comets and asteroids. These objects show significant non-gravitational… Is the `Dark Comet’ 1998 KY26 the Spacecraft Phobos 1? Avi Loeb   ∙   May 31, 2026   ∙   6 min read   ∙   View on Medium An artist’s illustration of the planned landing of JAXA’s Hayabusa2 spacecraft of on the `dark comet’ labeled 1998 KY26. (Image credit: Kommesser/ESO) Dark comets are a proposed class of curious hybrids between comets and asteroids. These objects show significant non-gravitational accelerations, yet they exhibit absolutely no sign of cometary outgassing in the form of a coma or tail. The first recognized interstellar object, 1I/`Oumuamua showed these features and was suggested to belong to this class in a recent mainstream publication, posted here. However, based on its inferred flat shape (published here) and non-gravitational acceleration, I argued in a much earlier publication here that 1I/`Oumuamua might be technological in origin. … Continue reading Continue reading this story on Medium. Sent to zvagoman@gmail.com by Avi Loeb on Medium Unsubscribe from this writer's email notifications Manage your email settings 3500 South DuPont Highway, Suite IQ-101, Dover, DE 19901 Careers·Help Center·Privacy Policy·Terms of service