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AM Radio Wavelength Abell 2029 Albireo Aldebaran Alnitak Alpha Centauri A Alpha Centauri B Alpha Helix Altair Amoeba Andromeda Galaxy Angel Falls Angstrom Ant Ant Nebula Antares Apollo Lunar Module Arcturus Asia Average Laptop Screen Average U.S. House Bacteriophage Barnard's Loop Basketball Beach ball Betelgeuse Black Pillar Blinking Nebula Blue Whale Boeing 747 Boeing Everett Factory Boomerang Nebula Bottom Quark Brunei Bubble Nebula Buckyball Burj Khalifa California Callisto Canes Venatici Dwarf Galaxy I Canis Major Dwarf Galaxy Capella Carbon Atom Carbon Nanotube Cartwheel Galaxy Cat's Eye Nebula Cave Nebula Cell Nucleus Central Park Ceres Cesium Atom Charm Quark Charon Chicken Egg Chlorine Nucleus Chloroplast Clay Particle Coffee Bean Common Earthworm Cone Nebula Crab Nebula Cruithne DNA Deimos Deneb Depth of the Mariana Trench Distance Earth Has Travelled (Relative to Sun) Distance from Comet Hale-Bopp to Sun (farthest) Distance from Earth to Moon Distance from Earth to Sun Distance from Neptune to Sun Distance from Proxima Centauri to Alpha Centauri A Distance from Sedna to Sun (farthest) Distance from Voyager 1 to Earth Distance from the Sun to Proxima Centauri Distance to the Andromeda Galaxy Distance to the Great Attractor Distance to the HDF Distance to the Shapley Supercluster Dodo Bird Down Quark Duckweed Dust mite Dysnomia E. coli Eagle Nebula Earth Eiffel Tower Electron (Classical) Elephant Enif Eridanus Supervoid Eris Eskimo Nebula Estimated Size of the Universe Europa FM Radio Wavelength Football Field Fornax Cluster Gacrux Gamma Ray Wavelength Ganymede Gateway Arch Giant Earthworm Gigaparsec Giraffe Glass Marble Gliese 229A Gliese 229B Glucose Molecule Gomez's Hamburger Grain of Rice Grain of Salt Grain of Sand Grand Canyon Great Barrier Reef Great Nebula in Carina Great Pyramid of Giza Great Wall of China HIV Half Dome Halley's Comet Helium Atom Helium Nucleus Helix Nebula Hepatitis B Virus Hercules–Corona Borealis Great Wall High-Energy Neutrino Homunculus Nebula Hoover Dam Horsehead Nebula Hourglass Nebula Human Hummingbird Hydra Hydrogen Atom IC 1101 ISS Inch Ruler Infrared Wavelength Io Italy Japanese Spider Crab Jupiter KY Cygni Kapteyn's Star Kuiper Belt LCD Pixel La Superba Lagoon Nebula Large Hadron Collider Large Magellanic Cloud Largest Bacteria Largest Hailstone Largest Virus Lengths shorter than this are not confirmed. Leo II Dwarf Galaxy Light-Day Light-Year Local Group Luyten's Star Maraapunisaurus Fragillimus Marathon Mars Matchstick Mercury Messier 54 Microwave Wavelength Milky Way Mimivirus Minecraft World Mist droplet Mitochondrion Moon Mount Everest Mu Cephei NGC 1232 NGC 3310 NGC 4889 Neptune Neutrino Neutron Neutron Star Nix North America Nebula Oak Tree Observable Universe Omega Centauri Oort Cloud Orion Nebula Ovum (Human Egg) Palm Jebel Ali Paramecium Parsec Pencil Lead Phobos Phospholipid Phospholipid Bilayer Pillars of Creation Pinwheel Galaxy Pisces-Cetus Supercluster Complex Pistol Star Planck Length Pluto Polaris Pollux Porcine circovirus Procyon Proton Proxima Centauri Quail Egg Quantum Foam Quaoar R Doradus Rafflesia Range of the Weak Force Red Blood Cell Red Light Wavelength Redwood Tree Regulus Rhode Island Rigel Ring Nebula Rosette Nebula Rotten Egg Nebula Russell's Teapot Rwanda S Doradus Sagittarius Dwarf Galaxy Saguaro Cactus Saturn Saturn V Sedna Shrew Silt Particle Sirius A Sirius B Skin Cell Sleet Small Magellanic Cloud Smallest Object Visible to the Naked Eye Smallest Thing Visible to an Electron Microscope Smallest Thing Visible to an Optical Microscope Sombrero Galaxy Spica Square Inch Statue of Liberty Stingray Nebula Strange Quark String Sun Sunflower Sunflower Seed Tadpole Galaxy Tarantula Nebula Texas Thickness of Paper Thou Titan Titanic Top Quark Total Human Height TrES-4b Transistor Gate Triangulum Galaxy Triton Twip Tyrannosaurus Rex U.S. Penny Ultraviolet Wavelength Uluru United States of America Up Quark Uranium Nucleus Uranus V354 Cephei VV Cephei A VY Canis Majoris Vatican City Vega Venus Violet Light Wavelength Virgo A Virgo Cluster Virgo Supercluster WOH G64 Wandering Albatross Washington Monument Water Molecule West Virginia Whirlpool Galaxy White Blood Cell Width of Human Hair Width of Silk Fiber Wolf 359 X Chromosome X-Ray Wavelength Y Chromosome