The news on Ground comes from 2 sources: directly from over 50,000 major news publications (newspapers, news TV channels, news magazines) from around the world, and trending social media (including select blogs). If you don’t like the mainstream perspective, you can always find the independent one by swiping through sources or by following your favourite publications.
If you look for alternatives and want an even wider view you could have a look at the GDELT Project:
GDELT monitors the world’s news media from nearly every corner of every country in print, broadcast, and web formats, in over 100 languages, every moment of every day.
I have used it a few times to gauge US news.
Their FAQ says
If you look for alternatives and want an even wider view you could have a look at the GDELT Project: