For better security and for preventing various Protocol Downgrade Attacks the endpoint api.nasa.gov should enforce HTTP Strict Transport Security - add response header indicating that all communication should always happen on HTTPS.
Since api.nasa.gov works already only on HTTPS, adding HSTS should not break anythng, only imrpove the security for all the clients.
For more details about HSTS please check this article:
https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security
For better security and for preventing various Protocol Downgrade Attacks the endpoint api.nasa.gov should enforce HTTP Strict Transport Security - add response header indicating that all communication should always happen on HTTPS. Since api.nasa.gov works already only on HTTPS, adding HSTS should not break anythng, only imrpove the security for all the clients. For more details about HSTS please check this article: https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security