In the 20th century, many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s.

Icon class
icon_class
fas fa-quote-left
icon_class_computed
fas fa-quote-left
Source
Snippet kind
Keywords
Full quote
In the 20th century, many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s.
Next snippet
Related snippets
Related snippets (backlinks)
Related content
Visit also
Visit also (backlinks)