Dark energy may not be constant—this discovery could undermine our entire model of cosmological history
The great Russian physicist and Nobel laureate Lev Landau once remarked that "cosmologists are often in error, but never in doubt." In studying the history of the universe itself, there is always a ...
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Giant, near-perfect cloud ring appears in the middle of the Pacific Ocean — Earth from space
A 2014 satellite image captured a rare glimpse of a massive, eerily circular ring of clouds that formed slap-bang in the ...
Mysterious black ring seen floating over Seattle solved
SEATTLE — Seattleites spotted a mysterious black ring over downtown over the weekend, prompting speculation over its origin.