st.ttest_ind in scipy returning a p-value of 0.0

Question

I am trying to conduct a hypothesis test but I am getting a p-value of 0. I can understand if it is really small but a 0.0 is leading me to believe that there is an error. Here is my code:

results = st.ttest_ind(
        ultimate_users['monthly_profit'], 
        surf_users['monthly_profit'], nan_policy = 'omit')

print('p-value: ', results.pvalue)

output: p-value: 0.0