Aug 21, 2023 · A newly discovered comet that's barreling toward Earth may have originated from outside our solar system — and will likely be catapulted back into interstellar space after performing an intense...

An interstellar object is an astronomical object (such as an asteroid, a comet, or a rogue planet, but not a star or stellar remnant) in interstellar space that is not gravitationally bound to a star.

Apr 20, 2020 · This is a time-lapse sequence compressing Hubble Space Telescope observations of comet 2I/Borisov, spanning a seven-hour period. As the second known interstellar object to enter our solar system, the comet is moving along at …

2I/Borisov, originally designated C/2019 Q4 (Borisov), [8] is the first observed rogue comet and the second observed interstellar interloper after ʻOumuamua. [9][10] It was discovered by the Crimean amateur astronomer and telescope maker Gennadiy Borisov on 29 August 2019 UTC (30 August local time). [11][12]

Nov 3, 2024 · Comet 2I/Borisov is the first confirmed interstellar comet. It was discovered by Crimean amateur astronomer Gennady Borisov on Aug. 30, 2019, and quickly became a global phenomenon.

Mar 23, 2023 · Now, new research aims to close the book on the interstellar comet’s orbit with a simpler explanation. A study describing the findings was published Wednesday in the journal Nature.

Oct 16, 2019 · NASA’s Hubble Space Telescope has given astronomers their best look yet at an interstellar visitor — comet 2I/Borisov — whose speed and trajectory indicate it has come from beyond our solar system. This Hubble image, taken on …

Apr 20, 2020 · The unusually high concentration detected in 2I/Borisov, the first interstellar comet, is highlighted in red. The comet shown on the far right is C/2016 R2 (PanSTARRS), presumably, a solar system comet with CO levels estimated to be dozens of times higher than Borisov’s.

2I/Borisov was discovered on 30 August 2019, and was soon confirmed to be an interstellar comet. Arriving from the direction of Cassiopeia, the object arrived at perihelion (closest point to the Sun) on 8 December 2019.

Apr 3, 2023 · Now, a new study from astrophysicists affiliated with the University of Chicago argues that the comet’s mysterious behavior can be explained by a simple physical mechanism likely common among many icy comets: outgassing …