Just being in the same space as that person can heal your heart.
Some Japanese people think that strollers should be banned in crowded trains because they take up a lot of space.
Even though there is no air in space, I still want to live on the moon.
The sky interval is an area of the sky. In places that are just empty sky, there is only space. Of course, not technically... there's something there, but back in the day when kanji was being made, nobody knew that. This word can mean both space in regards to outer space as well as the space around you in your room.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.