According to the theory, all galaxies have clouds of dark matter embedded in them.Dark Matter is an invisible form of matter, which constitutes the bulk of the universe’s mass and creates the scaffolding upon which galaxies are built, explains NASA. Gravitational lensing is useful to cosmologists because it is directly sensitive to the amount and distribution of dark matter. Dark Matter and Galaxy Formation. This invisible extra matter was called Dark Matter. IceCube is an enormous particle detector located deep in the ice at the South Pole. Using NASA’s James Webb Space Telescope as a sort of time machine, researchers plan to investigate how new stars are born. Free classes & tests. 4M watch mins. UPSC CSE - GS. IceCube searches for neutrinos from … Fifth state of matter observed by the scientists for the first time in space. Part of: GS-Prelims and GS-III – Science and Technology In News: The fifth state of matter has been observed by the scientists for the first time in space. (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3 (d) 1, 2 and 3. ; A team of NASA Scientists recently unveiled the first results from Bose-Einstein condensates (BEC) experiments aboard the International Space Station (ISS). It will be very useful for CSE Prelims 2021 and Mains. The IceCube telescope is a powerful tool to search for dark matter and could reveal the physical processes associated with the enigmatic origin of the highest energy particles in nature. Discussions will be held on Dark Matter of the universe. It is completely invisible to light and other forms of electromagnetic radiation and impossible to. It is a powerful telescope to search for dark matter. Nov 3, 2020 • 1h 38m . Lensing can help astronomers work out exactly how much dark matter there is in the Universe as a whole and also how it is distributed. Rakesh Verma. 2. There is no specified syllabus for General Science and Technology, but, from the previous years’ papers, the probable boundary of the syllabus of this section can be drawn.This section is divided into 6 subsections i.e. There are several theories regarding Dark Matter. From UPSC perspective, the following things are important : Prelims level : Dark Matter, Gravitational Lensing. Almost every year, at least 10 - 15 questions are usually asked from this section. English Science & Technology. Taking the theory forward, in 1970s, two astronomers showed that the stars in Andromeda Galaxy were moving so fast that for the stars to stay in the galaxy there had to be a tremendous amount of matter surrounding and enveloping the entire galaxy like a giant cocoon. Mains level : Gravitational Lensing. This extra matter which invisible and undetected has … Continue reading "DARK MATTER" Here’s my rule of thumb for physics: the longer an idea is around, the more our ability to explain it in simple language increases. Lensing has also been used to help verify the existence of dark matter itself. It was in 1930s when Fritz Zwicky observed that many galaxies were moving faster than theoretical calculations. Quick Discussion on Dark Matter and Dark Energy. This implied that there was some mysterious gravitational pull towards the centre of those galaxies. Among major sections of UPSC 2020 Prelims, General Science and Technology is one. It is buried deep in the ice. 3. The quantity of matter needed to exert such a pull far exceed the observed matter.

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