ursa

 Space

Pluto Mosaic, NASA

Saturn and Dione

Jupiter's Red Spot, ESA, Hubble

Coronal Hole, NASA's Solar Dynamics Observatory

NASA Cassini launch, Oct 15, 1997

Mimas and Pandora

Azore Islands, ESA, Sentinel-1A radar image

NASA, heat shield test

Phoenix Cluster, Chandra

Super Moon + Eclipse, behind Washington Monument

Veil Nebula Super Nova Remnant

Cosmic optical illusions in Ursa Major, NASA, Hubble

Clear Skies over the United States, Scott Kelly, NASA, ISS

Large Diameter Centrifuge

Avezzano Italy agriculture, ESA, Sentinel 2A

ISS Solar Transit Composite, NASA

The Magellanic Clouds and an interstellar filament, ESA Planck

Twin Jet Nebula, NASA Hubble

Supersonic shockwaves, NASA, USAF, Schlieren Image

Feathery filaments in Mon R2, ESA Hershel