Space is truly awe inspiring - and amazingly empty. It's often hard for us to conceptualize both the immense size of planets, stars, and other bodies with the incredible amount of space between them.
To show the immense size, introduced me to a fantastic YouTube video compared planet and star sizes. The video does a great job of showing relative size - once you think you're at the largest size possible, another body comes along and knocks it out of the park!
This background knowledge helps to fully appreciate the Pluto news as covered by the latest This Week in NASA video - check it out!