It's possible to earn $1,000.00 per day and even more with Adsense. But you'd need a huge site with thousands of articles of content with high paying topics.
To get to $1,000.00 per day with Adsense I'm sure you'd need to have at least 25,000 daily unique visitors to your website or even more.
That's just an estimate. Once you get to that level of income you'll certainly be on at least one dedicated server so all that $1,000.00 per day from Adsense wouldn't be all profit since your hosting costs would go up.
If you go at making one huge website alone with 100,000 articles or more then you'll be working hard for a long time writing out all that content.