AlcorNewsJul 13, 2025
Des astronomes identifient des comètes sombres, objets déguisés en astéroïdes mais propulsés comme des comètes, un vrai casse-tête cosmique
https://www.pourlascience.fr/sd/astronomie/les-cometes-sombres-des-objets-celestes-qui-defient-les-lois-de-la-dynamique-du-systeme-solaire-27912.php
#Space #Science #Innovation
#Astrophysics #OrbitalDynamics
#DarkComets #NEOs #OutgassingMystery
#CosmicFrontierEmerging
readbeanicecreamJul 14, 2024

Earth Surrounded by Dark Comets, Astronomers Claim

https://futurism.com/the-byte/earth-dark-comets

#space #spaceexploration #astronomy #cosmology #comets #darkcomets

Earth Surrounded by Dark Comets, Astronomers Claim

Dark comets, which are cross between an asteroid and comet, can make up as much as 60 percent of near-Earth objects.

Futurism
Show threadCorey S PowellMar 22, 2023
And 'Oumuamua might not be so strange after all! A new study has identified a population of "dark comets" in our own solar system. They also move on their own, probably also by puffing off invisible gas. https://news.cornell.edu/stories/2023/03/first-known-interstellar-interloper-resembles-dark-comet #DarkComets #astronomy
First known interstellar interloper resembles ‘dark comet’ | Cornell Chronicle

Intensive study of Oumuamua after its 2017 detection helped astronomer Darryl Seligman find potential “dark comets” in our solar system – small bodies that look like asteroids but act like comets.

Cornell Chronicle