Heat Pump Defrost Question

https://northpixelate.com/s/Lf9FUWZx_tJ6kSDtSDrEV

Heat Pump Defrost Question Is it normal for a heat pump to blow steam from the outdoor unit in winter? Ours did that during the freeze last February and I panicked a bit. Sounds like it might just be the defrost cycle from what I'm reading here