Source: Starfinder Core Rulebook p.52
Vesk are Medium humanoids with the vesk subtype.
Vesk use armor in a way that complements their uniquely sturdy physiology. When wearing armor, they gain a +1 racial bonus to AC. When they're wearing heavy armor, their armor check penalty is 1 less severe than normal.
Vesk receive a +2 racial bonus to saving throws against fear effects.
Vesk can see in dim light as if it were normal light.
Vesk are always considered armed. They can deal 1d3 lethal damage with unarmed strikes and the attack doesn't count as archaic. Vesk gain a unique weapon specialization with their natural weapons at 3rd level, allowing them to add 1-1/2 x their character level to their damage rolls for their natural weapons (instead of just adding their character level, as usual).