1I/ʻOumuamua
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1I/ʻOumuamua is the first confirmed interstellar object detected passing through the Solar System. Formally designated 1I/2017 U1, it was discovered by Canadian physicist Robert Weryk using the Pan-ST
ʻOumuamua on 28 October 2017
Artist's impression of a cigar-shaped ʻOumuamua
PIA21423 Surface of TRAPPIST 1f
Eso 1733s Artist's impression of merging neutron stars
2I/Borisov
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2I/Borisov, originally designated C/2019 Q4, is the first observed rogue comet and the second observed interstellar interloper, after ʻOumuamua. It was discovered by the Crimean amateur astronomer and
1I/ʻOumuamua
…that it was an interstellar object. Based on observations spanning 80 days, ʻOumuamua's orbital eccentricity is 1.20, the highest ever observed until 2I/Borisov was discovered in August 2019. An eccentricity exceeding 1.0 means an object exceeds the Sun's escape velocity, is not bound to the Solar System, and…
Borisov approaches the ecliptic plane between the orbits of Jupiter (pink) and Mars (orange).
Black hole Messier 87
Esa hubble k 2 18a impression
Hyakutake Color