Comparison: Smallest to Largest Objects in the Universe

#comparison #universe #size Comparison: Smallest to Largest Objects in the Universe How small is the smallest thing that can exist? And how big is the biggest? This is the entire universe, from one end of the scale to the other. In this Limit Line comparison, we start at the Planck length — the smallest size anything can ever be — and climb, step by step, all the way to the observable universe. Atoms become cells, cells become creatures, creatures become mountains, mountains become planets, planets become stars, and stars vanish inside galaxies and walls of galaxies you have to see to believe. Every jump on this scroll multiplies what came before, so the numbers stop feeling real long before the end — and that is the point. Somewhere in the middle of it all sits you, almost exactly halfway between the tiniest particle and the edge of everything. This is the clearest way to feel just how small, and how strangely central, your place in the universe really is. CHAPTERS 0:00 PHASE 1 — The Invisible 0:27 PHASE 2 — Under the Microscope 0:51 PHASE 3 — The World You Know 1:27 PHASE 4 — Towers to Worlds 1:59 PHASE 5 — Planets and Stars 2:57 PHASE 6 — Beyond Imagination 3:53 — Check out next KEY MOMENTS → 100 nm — The coronavirus, too small to see, that stopped the whole world → 1.7 m — You. The exact point where this journey gets personal → 30 m — The blue whale, the largest animal that has ever lived → 12,742 km — Earth, holding everything you have ever known → 1,391,000 km — The Sun, large enough to swallow a million Earths → 2,990,000,000 km — Stephenson 2-18, the largest star ever discovered → 390,000,000,000 km — TON 618, a black hole wider than any star → 105,700 light-years — The Milky Way, home to every star you can see → 16,000,000 light-years — Alcyoneus, the largest known galaxy → 520,000,000 light-years — Laniakea, our true address in the cosmos → 10,000,000,000 light-years — The Hercules-Corona Borealis Great Wall, the largest known structure → 93,000,000,000 light-years — The observable universe, the edge of everything Watch to the very end — the final size will break your sense of scale completely. SOURCES NASA Science — https://science.nasa.gov NASA Hubble Space Telescope — https://science.nasa.gov/mission/hubble Encyclopaedia Britannica — https://www.britannica.com National Geographic — https://www.nationalgeographic.com California Institute of Technology — https://www.caltech.edu Massachusetts Institute of Technology — https://www.mit.edu National Center for Biotechnology Information — https://www.ncbi.nlm.nih.gov #LimitLine #SizeComparison #Universe #Space #Astronomy #ScaleOfTheUniverse #Cosmos