What is Rich snippets?

Structured data markup using schema.org that helps Google display rich, accurate, and instant answers in search results, giving sites a leg up in mobile search.

From The 10 Most Harmful Mobile SEO Mistakes by Aleh Barysevich #370

Structured data markup added to pages so search engines can display enhanced results; required for events to appear in the Google carousel, and also controls images shown when a URL is shared on social platforms.

From Hashtagging Your Website - #SEOpodcast 228

Enhanced search result listings produced by structured data markup that make a SERP result larger and more visible, as described in the episode.

From #SEOPodcast292 - Eight Most Common but Simple Missed Opportunities in Optimizing Content

Search result enhancements that depend on having good media such as images and videos, citations, and other elements that are both user-visible and indexable by search engines.

From On Page Optimization Tips - Internet Marketing Podcast Number 203

Structured markup using schema data applied to content such as events, locations, video, and images to increase visibility in search results and enable discovery beyond text searches.

From Driving New Search Traffic from your Content - #SEOpodcast 268