https://www.frontiersin.org/journals/physics/sections/cosmology RSS Feed for Cosmology section in the Frontiers in Physics journal | New and Recent Articles en-us Frontiers Feed Generator,version:1 2026-04-07T12:53:38.808+00:00 60 https://www.frontiersin.org/articles/10.3389/fphy.2026.1737947 https://www.frontiersin.org/articles/10.3389/fphy.2026.1737947 2026-02-19T00:00:00Z Hypothesis and Theory Radovan Machotka https://www.frontiersin.org/articles/10.3389/fphy.2025.1721386 https://www.frontiersin.org/articles/10.3389/fphy.2025.1721386 2026-01-05T00:00:00Z Original Research Johannes Böhm-Mäder https://www.frontiersin.org/articles/10.3389/fphy.2025.1599363 https://www.frontiersin.org/articles/10.3389/fphy.2025.1599363 2025-06-13T00:00:00Z Original Research Johannes Böhm-Mäder https://www.frontiersin.org/articles/10.3389/fphy.2025.1537461 https://www.frontiersin.org/articles/10.3389/fphy.2025.1537461 2025-02-10T00:00:00Z Hypothesis and Theory Radovan Machotka https://www.frontiersin.org/articles/10.3389/fphy.2024.1511757 https://www.frontiersin.org/articles/10.3389/fphy.2024.1511757 2025-01-07T00:00:00Z Brief Research Report Valentin Boyanov https://www.frontiersin.org/articles/10.3389/fphy.2024.1415418 https://www.frontiersin.org/articles/10.3389/fphy.2024.1415418 2024-06-12T00:00:00Z Original Research Xia TanCong WangShu-Zheng Yang https://www.frontiersin.org/articles/10.3389/fphy.2023.1170683 https://www.frontiersin.org/articles/10.3389/fphy.2023.1170683 2023-05-04T00:00:00Z Original Research Muhammad YasirTong LiningXia TiechengAllah Ditta https://www.frontiersin.org/articles/10.3389/fphy.2023.1108072 https://www.frontiersin.org/articles/10.3389/fphy.2023.1108072 2023-03-16T00:00:00Z Original Research Zhaoxuan ZhangLu HuangYang LiuSi-Yu LiLe ZhangHao Liu https://www.frontiersin.org/articles/10.3389/fphy.2022.1038905 https://www.frontiersin.org/articles/10.3389/fphy.2022.1038905 2023-01-04T00:00:00Z Original Research Ksh. Newton SinghFarook RahamanDebabrata DebS. K. Maurya https://www.frontiersin.org/articles/10.3389/fphy.2022.823592 https://www.frontiersin.org/articles/10.3389/fphy.2022.823592 2022-11-18T00:00:00Z Original Research Nader A. Inan https://www.frontiersin.org/articles/10.3389/fphy.2022.1058690 https://www.frontiersin.org/articles/10.3389/fphy.2022.1058690 2022-10-20T00:00:00Z Editorial A. GalleratiG. ModaneseG. A. UmmarinoY. Aleshchenko https://www.frontiersin.org/articles/10.3389/fphy.2022.995977 https://www.frontiersin.org/articles/10.3389/fphy.2022.995977 2022-10-14T00:00:00Z Hypothesis and Theory Arto AnnilaMårten Wikström https://www.frontiersin.org/articles/10.3389/fphy.2022.1005333 https://www.frontiersin.org/articles/10.3389/fphy.2022.1005333 2022-10-04T00:00:00Z Original Research Daniel FrolovskySergei V. KetovSultan Saburov https://www.frontiersin.org/articles/10.3389/fphy.2022.954439 https://www.frontiersin.org/articles/10.3389/fphy.2022.954439 2022-09-07T00:00:00Z Hypothesis and Theory Lauri LehmonenArto Annila https://www.frontiersin.org/articles/10.3389/fphy.2022.734199 https://www.frontiersin.org/articles/10.3389/fphy.2022.734199 2022-07-06T00:00:00Z Hypothesis and Theory Lawrence Crowell https://www.frontiersin.org/articles/10.3389/fphy.2022.875757 https://www.frontiersin.org/articles/10.3389/fphy.2022.875757 2022-05-24T00:00:00Z Hypothesis and Theory Alexander ZhukValerii Shulga https://www.frontiersin.org/articles/10.3389/fphy.2022.826188 https://www.frontiersin.org/articles/10.3389/fphy.2022.826188 2022-05-23T00:00:00Z Original Research Václav Vavryčuk https://www.frontiersin.org/articles/10.3389/fphy.2022.867766 https://www.frontiersin.org/articles/10.3389/fphy.2022.867766 2022-04-25T00:00:00Z Original Research Arbab I. ArbabRazan S. AlbughylilAlnadhief H. A. Alfedeel https://www.frontiersin.org/articles/10.3389/fphy.2021.701619 https://www.frontiersin.org/articles/10.3389/fphy.2021.701619 2021-10-25T00:00:00Z Original Research Ting-Hang Pei 0, when RQ ∼ RS. The results reveal that the maximum speed of light and the range of the superluminal phenomenon are much related to the rotational term a and the charged term RQ. It is at least reasonable at two poles and in the equatorial plane, when light propagates along the radial direction. Although the superluminal phenomenon is discussed in the Boyer-Lindquist coordinates, all the results are easy to be transformed or discussed in the Cartesian coordinates (x, y, z, t) by setting R2 = x2+y2+z2 = r2+a2sin2θ and rdr = RdR in the velocity of light. The conclusions of the superluminal phenomenon about the three velocity components (dR/dt, Rdθ/dt, Rsinθdϕ/dt) are different from them in the Boyer-Lindquist coordinates. Generally speaking, the superluminal phenomena for light can possibly occur in these cases where the radial velocity dr/dt is dominant, and the other two velocity components are comparably small. When the relative velocity between the observer coordinate frame and the black hole is not large, the superluminal phenomenon is possibly observable at infinity or in a weak gravitational frame such as on Earth. The results can also be applied on the super-gravitational sources.]]> https://www.frontiersin.org/articles/10.3389/fphy.2020.603190 https://www.frontiersin.org/articles/10.3389/fphy.2020.603190 2021-02-16T00:00:00Z Review Paolo SalucciGiampiero EspositoGaetano LambiaseEmmanuele BattistaMicol BenettiDonato BiniLumen BocoGauri SharmaValerio BozzaLuca BuoninfanteAntonio CapolupoSalvatore CapozzielloGiovanni CovoneRocco D’AgostinoMariafelicia De LaurentisIvan De MartinoGiulia De SommaElisabetta Di GreziaChiara Di PaoloLorenzo FatibeneViviana GammaldiAndrea GeralicoLorenzo IngogliaAndrea LapiGiuseppe G. LucianoLeonardo MastrototaroAdele NaddeoLara PantoniLuciano PetruzzielloEster PiedipalumboSilvia PietroniAniello QuarantaPaolo RotaGiuseppe SarracinoFrancesco SorgeAntonio StabileCosimo StornaioloAntonio TedescoRiccardo ValdarniniStefano ViaggiuAndy A. V. Yunge