Recently discovered gigantic gamma-ray emitting bubbles extend above and below the center of the Milky Way galaxy. These enormous structures, uncovered using data from NASA's Fermi Gamma-ray Space Telescope, measure 25,000 light-years in height each and may only be a few million years old. Scientists theorize these mysterious features could result from massive star formation bursts or the activity of a supermassive black hole. This captivating celestial wonder is excellent in educational material or presentations about cosmic phenomena and space exploration.

Free Iphone Space Wallpaper 4K

Transform your iPhone’s screen into a mesmerizing window to the cosmos with our stunning iPhone Space Wallpaper 4K collection on Pikwizard. Imagine the awe-inspiring beauty of galaxies, nebulae, and starry skies right at your fingertips, all in breathtaking 4K resolution. Our extensive library offers a diverse selection of high-quality, royalty-free images that you can download and use as you wish—absolutely free.

Mysterious Gamma-Ray Bubbles in Milky Way Discovered by NASA Fermi Telescope

Stunning Spiral Galaxy M106 with Anomalous Arms and Glowing Hydrogen

Stunning Night Sky Filled with Bright Stars

Eagle Nebula's Pillars of Creation in Deep Space

Stunning Filamentary Veil Nebula Captured by Hubble Telescope in 3-D Visualization

Detailed View of Star Formation Region in Nebula with Glowing Hues

Beautiful Waxing Gibbous Moon Against Night Sky

Glowing Light in Starry Night Sky

Spiral Galaxy with Bright Core and Spiraling Arms in Deep Space

Predicted Merger of Milky Way and Andromeda Galaxy Night Sky Illustration

Face-On View of Spiral Galaxy LEDA 89996 in the Dorado Constellation

Milky Way Galaxy Over Forest Silhouette at Night

Starlit Night Sky with Silhouette of Trees in Foreground

Spiral Galaxy with Bright Center and Stars

Black Brant IX Night Sky Rocket Launch at Wallops Flight Facility

Stunning Milky Way Arch Over Calm Beach at Night

Stunning View of Milky Way Galaxy over Mountain Range at Night

Full Moon Against Dark Night Sky

Stunning View of Milky Way Galaxy at Night

Hubble Captures Peculiar Galaxy NGC 660 with Central Bulge and Dark Matter

Stunning Carina Nebula Clouds Astrophoto from Hubble Telescope

Stunning Details of Carina Nebula's Caterpillar Structure Captured by Hubble

Stellar Explosive Event with Glowing Blue and Purple Dust

Spiral Galaxy NGC 3982 Showcasing Star Birth from Hubble

Milky Way Galaxy Over Mountain Silhouettes at Night

Rustic Cabin Under Starry Night Sky in Remote Forest

Full Moon in Twilight Sky with Pink and Blue Cloud Striations

Person Stargazing with Flashlight Under Night Sky

Detailed Near-Infrared View of the Whirlpool Galaxy's Dust Structure

Hubble Image of Dwarf Galaxy NGC 5477 in Messier 101 Group

Vibrant Starry Sky Over Desert Mountains with Star Trails

Vibrant Nebula with Colorful Gases and Stars in Deep Space

Spiral Galaxy Messier 94 with Active Starburst Ring

Starry Night Sky with Majestic Milky Way above Mountain Peaks

Comet Kohoutek in Night Sky over Hawaii, Dec. 1973

Planet Earth from Space with a Detailed View of Europe and Africa

Vibrant Celestial Cloud Illuminated by Stars in Outer Space

Powerful Jets Caused by Supermassive Black Hole in Elliptical Galaxy Hercules A

Full Moon Glowing Brightly in Night Sky

Globular Cluster Terzan 1 in Constellation of Scorpius

Waxing Crescent Moon in Starless Night Sky

Stunning Milky Way Galaxy Night Sky with Scattered Stars

Horsehead Nebula in Orion Constellation Numerous Stars

Enchanting View of Milky Way Galaxy, Star-filled Night Sky

Vivid Composite Image of Crab Nebula Featuring Multiple Telescopes' Data

Night Sky with Milky Way Galaxy

Edge-On View of Spiral Galaxy ESO 373-8 Captured by Hubble Telescope

Spectacular View of NGC 6503 Galaxy in the Local Void

Celestial Pillar in Carina Nebula with Dazzling Stars

Southern Aurora Viewed from Space Skylab 3 1973

Closeup of Raindrops on Window with Blurred Sunset Background

Composite Image of SN 1006 Supernova Remnant in Optical, Radio, and X-ray

Starry Sky with Milky Way Over Mountain Landscape at Night

Glittering Star Cluster Trumpler 14 in Carina Nebula

Starry Night Sky with Milky Way Galaxy

False Color View of Mercury Highlighting Surface Composition by MESSENGER

Night Sky with Milky Way and Silhouetted Hills

Barred Spiral Galaxy IC 5201 Captured by Hubble Space Telescope

Stunning Spiral Galaxy with Bright Stars and Nebulae

Antennae Galaxies Colliding - Composite Image from NASA Observatories

Large Star Cluster within Tarantula Nebula

Night Sky with Milky Way Over Mountains and Reflection in Lake

Solar Eclipse with Subtle Earth Glow and Starry Background

Star Formation in Barred Spiral Galaxy M83 Captured by Hubble Telescope

Abstract Night Lights Through Rainy Window

Person Gazing at Milky Way Galaxy at Night

Bright Celestial Object Surrounded by Stars in Deep Space

Stunning Spiral Galaxy Messier 63 - The Sunflower Galaxy

Galaxy NGC 24 Captured by Hubble Telescope Using Advanced Camera for Surveys

Dark starry night sky with Milky Way galaxy

Massive Compact Disk Galaxy Discovered Through Natural Gravitational Lens

Stunning Star-Forming Region in 30 Doradus Captured by Hubble Telescope

Detailed View of Messier 96 Spiral Galaxy in Leo Constellation

Vivid Crab Nebula in Deep Space with Bright Neon Colors

Hubble View of Spiral Galaxy NGC 247's Central Region

Dazzling Fireworks Display in Night Sky

Colorful Cosmic Nebula and Shining Stars in Deep Space

Stunning Milky Way Galaxy and Stars in Night Sky

Majestic Spiral Galaxy with Glowing Core

Stunning Spiral Galaxy Andromeda in Deep Space During Night

Hubble Captures Intermediate Spiral Galaxy NGC 1566 in Dorado Constellation

Striking Supernova Remnant DEM L71 Captured by Hubble

Breathtaking Milky Way and Stars Above Mountain Silhouette

Bright Meteor in a Starry Sky Over a Dark Horizon

Detailed View of Cat's Eye Nebula Captured by Hubble Space Telescope

Stunning Night Sky with Milky Way Over Mountain Landscape

Stunning Night Sky with Milky Way and Shooting Star Over Mountains

Markarian 209 Galaxy with Young Star Clusters and Bright Nebulae

Space Shuttle Discovery Near Mir Space Station in 1995

Composite X-Ray and Optical Image of Active Galaxy NGC 1068

Earth Rising Behind Lunar Horizon

Glowing Full Moon in Starry Night Sky

Dwarf Galaxy NGC 5474 in Ursa Major Captured by Hubble Space Telescope

Digital Universe Scene with Earth and Glowing Moon

Sharpest Visible-Light Image of Andromeda Galaxy Core

Stunning View of the Milky Way Galaxy Night Sky

Harvest Moon Against Dark Night Sky

Night Sky with Milky Way over Forest Trees

Dwarf Galaxy NGC 5264 in Hydra Constellation Captured by Hubble

Stunning View of Milky Way in Night Sky

Explore More Free Stock Images