Description: Outer space, often shortened to "space", is the term for all regions within our Universe that lie beyond Earth's atmosphere. Spaceflight is the endeavor to fly suitable conveyances into and through outer space, and such conveyances are called spacecraft. Space sciences is an umbrella term for all branches of science that are concerned with space exploration, spaceflight, or astronomical bodies in outer space that may be reached by spacecraft, which includes astronomy and planetology.

Related Terms:

• Space
• Spacecraft

Term and definition status: This term and its definition have been approved by a research astronomer and a teacher

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".