Image of silhouetted man sitting under the night sky

Photo by Jeremy Bishop on Unsplash

Time lapse sequence of images of a lunar eclipse

Photo by Zoltan Tasi on Unsplash

Microscopic image of possible biological structures within a meteorite

Microscopic structures within Martian meteorite ALH 84001 • NASA (Public Domain)

Illustration of a swirling disk of matter in space

Artist's impression of a supermassive black hole • ESO/L. Calçada (CC BY 4.0)

Artist's impression of a probe parachuting into Jupiter's atmosphere

Artist's impression of the Galileo probe entering the Jovian atmosphere • NASA/Ames Research Center/Ken Hodges (Public Domain)

Image of a Martian meteorite

Martian meteorite ALH84001 • NASA/JSC (Public Domain)

Artistic interpretation of an exploding light

Image by Pablo Carlos Budassi (CC BY-SA 4.0)

Astronomical image of Comet Hyakutake

Comet Hyakutake in 1996 • NASA/Bill Ingalls (Public Domain)

Black-and-white still from old Flash Gordon serial

Princess Aura and Flash Gordon as portrayed by Priscilla Lawson and Buster Crabbe (1936)

Image of many galaxies

The Hubble Deep Field photograph • R. Williams (STScI), the Hubble Deep Field Team and NASA/ESA