outer space

References & Edit History Quick Facts & Related Topics

Images & Videos

Voyager 1 in interstellar space

Astronaut holding a rainbow lollipop against a starfield, with arrows toward text reading: Sugar in Space?

An astronaut in space waves while surrounded by floating plastic debris including bottles, a bag, a straw, and a plate near Earth's orbit.

Examine the observable universe's place within the whole universe

Diagram of the Milky Way galaxy showing labeled locations of the Sun, Milky Way center, Sagittarius dwarf elliptical, and Canis Major dwarf, with axes marking 80,000 light-years.

Learn about space expansion and why gravity and electromagnetism are not affected when space expands

outer space: References & Edit History

More Articles On This Topic

Kármán line

Article Contributors

Primary Contributors

Sanat Pai Raikar

Other Encyclopedia Britannica Contributors

Article History

Type	Description	Contributor	Date
	Media added.	Meg Matthias	Oct 06, 2026
	Media added.	Meg Matthias	Jul 24, 2025
	New article added.	Erik Gregersen Sanat Pai Raikar	Jul 11, 2025