Google is still Google, it’s just owned by Alphabet now. Former Google CEO, now Alphabet CEO, Larry Page tries to explain, on the Alphabet site at abc.xyz:

What is Alphabet? Alphabet is mostly a collection of companies. The largest of which, of course, is Google. This newer Google is a bit slimmed down, with the companies that are pretty far afield of our main internet products contained in Alphabet instead. What do we mean by far afield? Good examples are our health efforts: Life Sciences (that works on the glucose-sensing contact lens), and Calico (focused on longevity). Fundamentally, we believe this allows us more management scale, as we can run things independently that aren’t very related.

Alphabet is the umbrella company. Sundar Pichai is the new Google CEO, a Google that is supposed to be a bit slimmer. All these things are probably good for everyone involved.