Deletion of Remote Telescope Markup Language

Comment: It looks like this language has been discussed in detail in many reliable sources, including journal and news articles; not all are telescope manuals or from the creators. There's usable content for expansion about the language's history, structure, and current uses, so I'd say it passes  and merits a keep
Stance: keep
Cited policy: Wikipedia:Notability (WP:SIGCOV)

Comment: The sources added by ComplexRational show significant coverage in multiple reliable sources and the ESA source describes RTML as a standard. The topic merits a keep per . --&#123;&#123;u&#124
Stance: keep
Cited policy: Wikipedia:The Heymann Standard (WP:HEY)