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Universe Today

Reading the Galaxy's Past The Shape of a Black Hole Written in Rock Titan's Hidden Blanket Did Life Start When Impacts Created Vast Hydrothermal Systems in Earth's Crust? Meet REMORA: The Autonomous Space Fleet Built to Tag and Track Asteroids Watch the Moon Occult Venus in the Daytime for North America on June 17th Astrochemical Model Digs Into the Universe's Missing Sulfur Building in Space With Laser "Origami" On The Hunt For Cosmic Dawn And The Universe’s Very First Stars David Kipping Has a New Take on the Existence of Advanced Life in the Universe... and the Numbers are Not Encouraging! This is How Supermassive Black Holes Feed Themselves NASA’s Proposed EVE Mission Aims to Solve the Radius Valley Mystery Where Not to Look in the Search for ET Reading the Moon in X-rays Astronomers Find a Four-Carbon Sugar in Deep Space Why Can't the Universe Be Cyclic? Part 4: When a Good Idea Meets Bad Data Orbiting Stars Give Clues to a Quiescent Black Hole's Mass Magnetic Fields Help Binary Stars Form and Black Holes Merge A Rare Meteorite Just Revealed a Lost, Mars-Sized Planet from the Dawn of the Solar System Neptune’s Weirdest Moon Nereid Might Be the Lone Survivor of an Ancient "Moonpocalypse" Space Telescopes Are Now Overwhelmed by Satellite Trails Why Can't the Universe Be Cyclic? Part 3: The Ekpyrotic Universe and Its Bouncing Branes Catch Comet 220P McNaught in Outburst The Hidden Physics Complicating Interstellar Lightsails Student Astronomer Identifies Source of Mysterious Cosmic Signals Why Can't the Universe Be Cyclic? Part 2: The Awkward Triumph of Inflation The SETI Institute Releases Technosignature Report on 3I/ATLAS A “Green” Dual-Mode Engine is About to Give CubeSats the Best of Both Worlds SETI Panel Revises Recommendations for Dealing With 'Disclosure Day'
Why Can't the Universe Be Cyclic? Part 1: The Lure of the...
Paul Sutter Paul Sutter is a cosmologist, NASA advisor, author, · 2026-06-07 · via Universe Today
A look at why a cyclic, eternally repeating universe is such an appealing idea, and why the first serious att…

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