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]

Borisov was born in Reutov, Moscow Oblast, near Moscow. In 2014 he graduated from the Shchepkin Higher Theater School, and won the Golden Leaf award in the Best Actor category for the role of Alexander Tarasovich Ametistov in the play Zoyka's Apartment.

In December 2005, he was the founding chair of the conservative political party Citizens for European Development of Bulgaria (GERB), becoming its lead candidate in the 2009 general election. Borisov led GERB to a landslide victory in 2009, defeating the incumbent Socialist Party, and resigned as mayor of Sofia to be sworn in as prime minister.

Apr 20, 2020 · On Aug. 30, 2019, when amateur astronomer Gennady Borisov gazed upward with his homemade telescope, he spotted an object moving in an unusual direction. Now called 2I/Borisov, this runaway point of light turned out to be the first confirmed comet to enter our solar system from some unknown place beyond our Sun’s influence.

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.

Apr 20, 2020 · When amateur astronomer Gennady Borisov discovered an interstellar comet zipping through our solar system on Aug. 30, 2019, astronomers promptly turned their telescopes towards it hoping to catch a glimpse of this rare and ephemeral event.

Jun 13, 2024 · Former Prime Minister Boyko Borissov has invited his political opponents to hold talks on forming a new government.

Oct 16, 2019 · The comet was discovered by amateur astronomer Gennadiy Borisov on August 30, 2019, using a 25.6-inch (0.65-meter) telescope that he designed and built specifically to hunt for small, faint objects.

Dec 12, 2019 · Comet 2I/Borisov is only the second interstellar object known to have passed through the solar system. These two images, taken by NASA’s Hubble Space Telescope, capture the comet appearing near a background galaxy (left) and soon after its …

Apr 23, 2020 · The first known interstellar comet - 21/Borisov - probably came here from a red dwarf star, according to a new study of data from the Hubble Space Telescope.