Dark energy, paradigm shifts, and the role of evidence

Michela Massimi, Ofer Lahav

Research output: Contribution to journalArticlepeer-review

Abstract

We comment on cases in the history of Astronomy, which may shed some light on the current established but enigmatic concordance model of Cosmology. Should the model be understood by adding new entities such as Dark Matter and Dark Energy, or by modifying the underlying theory? For example, the prediction and discovery of planet Neptune can be regarded as analogous to finding a dark component; while explaining the anomalous perihelion precession of Mercury by General Relativity can be taken as analogous to the possibility that modified gravity is an alternative to dark components of the universe. In this paper, we revise this analogy coming from the history of astronomy with an eye to illustrating some of the similarities and differences between the two cases.
Original languageEnglish
Pages (from-to)3.12-3.15
Number of pages3
JournalAstronomy & Geophysics
Volume55
Issue number3
DOIs
Publication statusPublished - Jun 2014

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