It began testing the feature with a small number of Android users a few weeks ago, with a full launch beginning this week.
Instant Articles are news articles published directly to Facebook that promise to load times 10-times faster than an external link. Facebook has partnered with 350 publications worldwide to get their content directly on Facebook's mobile apps.
In a blog post, Michael Reckhow, Product Manager at Facebook said: 'We're excited to announce that everyone who uses the Facebook for Android app can now read thousands of Instant Articles every day in News Feed from publishers worldwide.
'Combined with our recent launch of Instant Articles to everyone on Facebook for iPhone, publishers can now deliver fast and immersive reading experiences to hundreds of millions of people daily across the two most popular mobile platforms in the world.
'We've been beta testing Instant Articles for Android with a small group of people on Facebook for several weeks, and as we saw on iPhone, the faster, richer reading experience inspires people on Android to share Instant Articles with their friends more often than they do with standard web articles.'
