What NASA's terms say
NASA's terms of service and privacy policy have 19 rated points: 0 serious, 7 bad, 6 worth knowing and 6 good. 17 apply whenever you use the site, signed in or not; 2 only once you have an account.
Whenever you use NASA
Bad 7
Third-party cookies are used for statistics
Third-party cookies are employed, but with opt out instructions
Referring and/or exit pages are tracked
Your personal data may be disclosed to comply with government requests without notice to you
Extra data may be collected about you through promotions
Your personal data may be used for marketing purposes
You may be tracked on other websites
Worth knowing 6
This service gives your personal data to third parties involved in its operation
First-party cookies are used
Blocking first-party cookies may limit your ability to use the service
This service informs you that its Privacy Policy does not apply to third-party services
This service assumes no responsibility and liability for the contents of links to other websites
Your IP address is collected, which can be used to view your approximate location
Good 4
Information is provided about what kind of personal information is collected
Only necessary logs are kept by the service to ensure quality
This service is COPPA compliant
Information is provided about security practices
If you have a NASA account
Good 2
You can retrieve an archive of your data
You are informed about the risk of publishing personal info online
The documents
Ratings by ToS;DR volunteers; they can lag behind the current terms. Not legal advice.