There have been a couple fo NASA updates I’ve seen regarding Pluto. One was about it’s thin atmosphere which was discovered by New Horizons. This link has more details but the image caputed as the probe looked back onto Pluto after passing the planet are amazing. The thin haze shows up really well.
The huge heart shaped feature on Pluto has had everyone guessing what is is and how it was made, but it seems that at least in part it could be like a huge lava lamp as this article details:
No ownserhip claimed on images or materials – Credit NASA