The observation was possible because of the works of a minisatellite called HaloSat that was launched from the ISS in 2018.
The total amount of matter in the observable Universe is equivalent to 66 billion trillion times the mass of our Sun.
The discovery, some experts think, might 'signal a gap' in the current understanding of dark matter and its properties.
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While we know it exists, making up a quarter of the universe, we are yet to see a dark matter particle.
The finding suggests to astrophysicists that dark matter is a lot 'colder' than they knew, in smaller scales.
The groups are located about 380 million light-years from Earth and will form a cluster after the merger.
The phenomenon involving helium has no fitting explanation basis the four known forces that govern the natural world.
Peebles advanced the concept of a dark matter component to the universe and its implications for the evolution of structure.
The Sun orbits at 230km per second despite being 26,700 light-years away from our galaxy’s centre.
The study also proposes a test for the origin of dark matter by looking at the distribution of matter in the universe.
The Wide Field Camera 3, which captured the image has been in use since 2009, with 2,40,000+ observations to its name.
The investigation is on but with no evidence, there are different theories for the possible suspect.
The study draws on gravitational lensing, which occurs only if a star, black hole & observer are in alignment.
The new mass estimate puts our galaxy on the beefier side compared to other galaxies in the universe.
The researchers are looking to record their first data when the LHC starts up again in 2021.
A newly-developed technique can scan the cosmos & possibly help spot the missing celestial matter.
The model highlights dark energy, which permeates throughout the universe and pushes it to expand.
The technique gives astronomers the most accurate measurements of dark matter made so far.