A California startup proposes giant orbital mirrors to reflect sunlight onto Earth after dark — a futuristic idea prompting excitement and scientific concern.
January 19 marks pivotal moments in Indian history — from Indira Gandhi becoming prime minister to influential deaths and political milestones that shaped the nation.
A sobering new scientific analysis warns that "Day Zero"—the moment urban water supplies completely fail—is no longer a distant threat but an imminent reality for millions. By 2100, nearly three-quarters...
