You can access the original developer's server by using the Wayback Machine to find the 2021-2022 snapshots of the download page.
To ensure a safe and verified download of Space Engine 0.980, we recommend obtaining the software from the official GitHub repository. The repository is regularly updated with the latest builds and patches, and all downloads are thoroughly verified to ensure they are free from malware and other security threats. space engine 0980 download verified
This is perhaps the most reliable "verified" source. SpaceEngine 0.980 has been hosted on ModDB for years, and the files are scanned and vetted by the community. You can access the original developer's server by
(This is an example – you must obtain the real hash from a reliable community source like the SpaceEngine Discord or official forum.) space engine 0980 download verified