sh ip bgp

can someone explain to me what the next hop 0.0.0.0 means?

Network Next Hop Metric LocPrf Weight Path

• 10.5.0.0/30 10.5.0.5 0 3 2 ?

*> 10.5.0.22 0 0 1 i
*> 10.5.0.2/32 10.5.0.5 0 3 2 ?

• 10.5.0.4/30 10.5.0.5 0 0 3 ?

*> 0.0.0.0 0 32768 ?
*> 10.5.0.5/32 0.0.0.0 0 32768 ?
*> 10.5.0.8/30 10.5.0.5 0 0 3 ?

• 10.5.0.22 0 1 2 ?

*> 10.5.0.9/32 10.5.0.22 0 1 2 ?
*> 10.5.0.10/32 10.5.0.5 0 0 3 ?
*> 10.5.0.20/30 0.0.0.0 0 32768 ?
*> 10.5.0.22/32 0.0.0.0 0 32768 ?

• 10.5.1.0/24 10.5.0.5 0 3 2 1 i

*> 10.5.0.22 0 0 1 i

• 10.5.2.0/24 10.5.0.5 0 3 2 ?

*> 10.5.0.22 0 1 2 ?
*> 10.5.3.0/24 0.0.0.0 0 32768 ?
*> 10.5.4.0/24 10.5.0.5 0 0 3 ?