This video explores the question of why the sky is dark, examining key concepts such as the infinite nature of the Universe and Olber’s Paradox. Chapters: 00:00 Introduction 00:53 Why is the sky dark?

Students should focus on problem-driven learning and develop the ability to deal with ambiguity and complexity on the ground, experts suggested at a webinar on ‘Beyond the Classroom: The Real MBA ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. David Kindness is a Certified Public Accountant (CPA) and an expert ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Somer G. Anderson is CPA, doctor of ...

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Jan. 7, 2026 Scientists have discovered that wildfires release far more air-polluting gases than previously estimated. Many of these hidden emissions can transform into fine particles that are ...

Jan. 1, 2026 Moss may look insignificant, but it can carry a hidden forensic fingerprint. Because different moss species thrive in very specific micro-environments, tiny fragments can reveal exactly ...

Poet Franny Choi on the value of imagining alternate realities What’s the value of asking questions to which we don’t know the answer? Poet Franny Choi’s “Introduction to Quantum Theory” does just ...

Join the movement to expand civil rights and civil liberties. Track how Congress is voting on key civil rights and civil liberties issues. Stay informed as we fight for your freedoms at the state and ...