Glossary term: X-ray

Description: X-rays are electromagnetic waves with frequencies between 30 petahertz and 10 exahertz, which corresponds to wavelengths between 10 picometers and 10 nanometers. X-rays are more energetic than ultraviolet radiation but less energetic than gamma rays.

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Term and definition status: This term and its definition is still awaiting approval

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".