Who owns these newspapers: The Sun, The Observer, The Guardian, The Times, The Independent, The Mirror, The Daily Mail and The Daily Star?

Rupert Murdoch owns the SUN.

https://en.wikipedia.org/wiki/Rupert_Murdoch#List_Of_Newspapers

The Mirror is MGN, Ltd.

sundaymirror.co.uk

people.co.uk

dailyrecord.co.uk

sundaymail.co.uk

The Mirror is part of the TrinityMirror Group. Trinity Newspapers were the proprietors of the Liverpool Echo and the Daily Post (and my local rag the Southport Visiter - yes, it is spelt that way because someone got it wrong when it first came out!). Trinity took over the ailing Mirror group. Is the Daily Star a newspaper? I've never bought it, but I've never seen anything much like news in anyone else's copy that I've looked at.

Star is part of Express newspapers currently owne by Richard Desmond.

Rupert Murdoch owns Sun & Times via News International

Mail is part of Associated Newspapers

Guardian & Observer are owned by the Scott Trust.

I can't remember the current details for the Inde.

Independent Newspapers are (I believe) still owned by Tony O'Reilly an Irish newspaper magnate.

He bought them out towards the end of the last century.