The Hubble Constant is the unit of measurement used to describe the expansion of the universe. The cosmos has been getting bigger since the Big Bang kick-started the growth about 13.82 billion years ago. The universe, in fact, is getting faster in its acceleration as it gets bigger. What'...
Do the age of the Universe and the Hubble constant depend on what scale one observes themdoi:10.1016/0370-2693(95)00775-GC.W. KimNorth-Holland
by using the recent measurement of the larger Hubble constant from a direct calibration of the distance to the Virgo galaxy cluster, and the ages of the oldest stars and globular clusters is resolved by invoking the scale dependence of cosmological quantities, including the age of the Universe. ...
Is the Universe Symmetrical? What Is Stellar Nucleosynthesis via Nuclear Fusion? How Did We Learn About the Problems Around the Hubble Tension, Hubble's Constant, & the Age of the Universe? What Are Cosmic Rays and What Do They Reveal About the Universe?
The universe has the critical density if it contains, on average, six hydrogen atoms per cubic meter. But matter is not spread evenly throughout the universe. We know this because we see it concentrated within galaxies and absent in the gaps between galaxies. However, when we talk about the...
It is worth noting that current models do not reproduce the correct zero-point (Cassisi et al.2011); however, observational studies have been concentrating on differential effects, and we will limit our discussion to those in this text. ...
In fact there are zillions of gluons, antiquarks, and quarks in a proton. The standard shorthand, “the proton is made from two up quarks and one down quark”, is really a statement that the proton has two more up quarks than up antiquarks, and one more down quark than down anti...
SEE ALSO:What exactly is the three-body problem in '3 Body Problem'? In episode 1 of David Benioff, D.B. Weiss, and Alexander Woo's sci-fi epic,based on Liu Cixin's books, the world sees the night sky flickering simultaneously, prompting widespread news coverage and watercooler chats ...
by using the recent measurement of the larger Hubble constant from a direct calibration of the distance to the Virgo galaxy cluster, and the ages of the oldest stars and globular clusters is resolved by invoking the scale dependence of cosmological quantities, including the age of the Universe. ...
The similarity to the RL AGN suggests that the linear radio sources in RQ AGN are also jets. Proper motions are observed in a few objects [57,83,94]. The apparent speed in units of c is Mrk 348 (𝛽app=0.074±0.035βapp=0.074±0.035) and Mrk 231 (𝛽app=0.14±0.052βapp=0.14±...