What is the Most Massive Thing?

What object has the highest mass in the universe?

Link to new channel!
https://www.youtube.com/watch?v=YPzS8cu6sYI
Links and References:

https://www.aanda.org/articles/aa/abs/2013/06/aa20920-12/aa20920-12.html (The atmospheric structure and fundamental parameters of the red supergiants AH Scorpii, UY Scuti, and KW Sagittarii)
https://www.researchgate.net/post/What_are_the_worse_yet_enduring_misconceptions_about_mass_and_energy_in_special_relativity - What are the worse yet enduring misconceptions about mass and energy in special relativity?
https://arxiv.org/abs/1603.04994 - The R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of HeII 1640 in young star clusters
http://www.chandra.harvard.edu/blog/node/432 - The Remarkable Properties of Neutron Stars
https://www.universetoday.com/15306/forget-neutron-stars-quark-stars-might-be-the-densest-bodies-in-the-universe/ - Forget neutron stars, quark stars might be the densest bodies in the universe
https://academic.oup.com/mnrasl/article/399/1/L24/1204481/The-blazar-S5-0014-813-a-real-or-apparent-monster - The blazar S5 0014+813: a real or apparent monster?
https://arxiv.org/pdf/astro-ph/9701131.pdf - A DYING UNIVERSE: The Long Term Fate and Evolution of Astrophysical Objects
Image/video credits:
Vitold Muratov - https://commons.wikimedia.org/wiki/File:Baby_cart.jpg
U.S. Air Force - https://commons.wikimedia.org/wiki/File:Mark-Henry-pushing-Tank.jpg
https://pixabay.com/en/rocket-fly-space-ship-launch-29852/
https://pixabay.com/en/videos/space-star-universe-galaxies-2381/
NASA's Goddard Space Flight Center Conceptual Image Lab - https://svs.gsfc.nasa.gov/20244
NASA's Goddard Space Flight Center Conceptual Image Lab - https://svs.gsfc.nasa.gov/20267
Chandra observatory - http://chandra.harvard.edu/photo/2002/0211/0211_illustration.jpg
NASA's Goddard Space Flight Center/J. Schnittman, J. Krolik (JHU) and S. Noble (RIT) - https://svs.gsfc.nasa.gov/11206
https://pixabay.com/en/videos/pool-blue-summer-water-9583/
NASA/Goddard Space Flight Center Conceptual Image Lab - https://svs.gsfc.nasa.gov/20135
NASA/Goddard Space Flight Center and the Advanced Visualization Laboratory at the National Center for Supercomputing Applications, B. Robertson, L. Hernquist - https://svs.gsfc.nasa.gov/10687
NASA - https://svs.gsfc.nasa.gov/10140

Видео What is the Most Massive Thing? канала Sharkee