How can I be there for a friend?

I have a good friend who is going through a hard time right now. She's married with a few kiddos and currently pregnant however it's not good news unfortunately. In the past couple weeks she found out that the baby has Trisomy 18 and what looks to be several heart problems. They have decided to do comfort care once the baby is born as they don't expect the baby to make it very long. I live a couple hours away but I told her if they needed anything to let me and my family know. My heart breaks for their entire family. I just don't know how to be there for them or what I can do to show them we are here for them. I want to be helpful in what I can be. They are important to us and I just feel so heartbroken for them.