The phrase "a new stratosphere" is correct and usable in written English.
It can be used to describe a new level of achievement, understanding, or experience that is significantly higher or different from what has been previously encountered.
Example: "With the launch of their innovative product, the company has reached a new stratosphere in the tech industry."
Alternatives: "a new level" or "an elevated realm".
His first three albums sold more than six million copies, but his fourth, "Confessions," launched him into a new stratosphere.
Repetitiveness is inevitable, but, each time I punctured a new stratosphere, my store of patience and interest was renewed.
That such a challenge would come after a period in which Congress entered a new stratosphere of dysfunction and uselessness is practically unimaginable.
That's in a new stratosphere compared with 1991, when the average sale price was $375,000 and the median was $265,000.
Gary Powell, drummer with The Libertines, chooses: Marvin Gaye: Live! (1974) Emotion was integral to all the music Marvin Gaye produced, but this live album shows him taking the emotional dimension of his songs into a new stratosphere.
After it seemed season tickets would cross into a new stratosphere as well, crossing the £1,000 barrier for the first time, FSG have backtracked similarly, with the highest prices remaining at £869 and the lowest at £685.
But over the last few years, they have elevated their passion to a vocation, sending pizza into a whole new stratosphere of respect.
The inference that women are too dumb to have noticed them doing it is a whole new stratosphere of insult to anyone's intelligence.
And then it put his business in a whole new stratosphere of services he offered customers.
Back then, the impossibly fast 72-foot-long hydrofoiling catamarans they raced on windy San Francisco Bay propelled the sport of sailing into a whole new stratosphere of speed.
The bad news is there are now just two storage options and while the iPhone 8 has increased $50 against the iPhone 7, the iPhone X takes Apple's pricing into a whole new stratosphere.
