first-event observations
71Big Bang — This article is about the cosmological model. For the sitcom, see The Big Bang Theory. For other uses, see Big Bang (disambiguation) …
72National Weather Service — NWS Agency overview Formed February 9, 1870 Jurisdiction …
73Gravitational microlensing — Gravitational Lensing Formalism Strong lensing …
74Dark energy — Not to be confused with dark matter, dark fluid, or dark flow. Physical cosmology …
75river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
76Cessationism versus Continuationism — is a Christian theological dispute concerned with the question whether the charismatic gifts are currently in operation. Contents 1 Problems in the dispute 2 Restrictions on the topics 3 Cessationist U …
77Hubble Space Telescope — Infobox Space telescope name = Hubble Space Telescope (HST) caption = The Hubble Space Telescope as seen from Space Shuttle Discovery during its second servicing mission (STS 82) organization = NASAESASTScI alt names = nssdc id =… …
78Current sea level rise — This article is about the current and future rise in sea level associated with global warming. For sea level changes in Earth s history, see Sea level#Changes through geologic time. Sea level measurements from 23 long tide gauge records in… …
79Dark matter — Not to be confused with antimatter, dark energy, dark fluid or dark flow. For other uses, see Dark Matter (disambiguation) …
80Pluto — This article is about the dwarf planet. For other uses, see Pluto (disambiguation). Pluto   …
