Nasa Release high definition of the sun

The term "high definition sun" isn't a scientific concept or a common term in astronomy. However, if you're referring to a high-definition image or video of the sun, it would likely involve capturing the sun's surface details, prominences, and other features with exceptional clarity and resolution. This could be achieved using advanced telescopes and imaging technology. Remember that observing the sun directly, even through a telescope, can be extremely dangerous without proper solar filters.