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[30] [31] [32] On 22 March 2023, astronomers proposed the observed acceleration was "due to the release of entrapped molecular hydrogen that formed through energetic processing of an H 2 O-rich icy body", [33] consistent with 'Oumuamua being an interstellar comet, "originating as a planetesimal relic broadly similar to solar system comets". [34]
However, subsequent investigations revealed further opportunities for missions to 'Oumuamua will be possible, using a Solar Oberth at 6 solar radii (4.2 × 10 ^ 6 km; 2.6 × 10 ^ 6 mi), [12] the soonest being in 2030/2033 – the choice of year depending on whether the trajectory exploits a 3 year leveraging maneuver or not.
‘Oumuamua, as the object became known, is unlike anything else we’ve ever observed. ... Get the Daily Beast's biggest scoops and scandals delivered right to your inbox. Sign up now.
'Oumuamua had an incoming V inf of 26.5 kilometres per second (59,000 mph), but due to its low perihelion distance of only 0.255 au, it had an eccentricity of 1.200. However, Borisov's V inf was only slightly higher, at 32.3 km/s (72,000 mph), but due to its higher perihelion distance of ~2.003 au, its eccentricity was a comparably higher 3.340.
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The book describes the 2017 detection of ʻOumuamua, the first known interstellar object to pass through the Solar System. [8] [9] Loeb, an astronomer at Harvard University, speculates that the object might be an extraterrestrial artifact, [10] a suggestion considered unlikely by the scientific community collectively.
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