The best free AI courses and certificates for upskilling in 2026 - and I've tried them all

I've worked with AI for decades and have a master's degree in education. Here are the top free AI courses online that I recommend - and why.
IEEE

LEO Satellite Handover Using Advantage Actor-Critic Algorithm in Giant Constellation Network

Abstract: Low Earth orbit (LEO) satellite network is a crucial component of the space-air-ground integrated network (SAGIN) architecture and nonterrestrial networks. It can provide global, real-time, ...

How strong and fast can a python swim in Florida waters? You'd be surprised

Pythons can tolerate saltwater and freshwater and have been observed swimming in Florida Bay and Biscayne Bay.
Open Heart

Severe aortic stenosis detection using seismocardiography

Background Patients with severe aortic stenosis (AS) are at high risk of mortality, regardless of symptom status. Despite ...
IEEE

SSAVI-GMM: An Automatic Algorithm for Mapping Submerged Aquatic Vegetation in Shallow Lakes Using Sentinel-1 SAR and Sentinel-2 MSI Data

Abstract: Submerged aquatic vegetation (SAV) is crucial for maintaining a clear-water state in lakes. Tracking the spatiotemporal changes in SAV is crucial for understanding the ecological evolution, ...
techtimes

How Recommendation Algorithms Shape What You Watch and Share: Streaming and Social Media Explained

Learn how recommendation algorithms, streaming recommendations, and social media algorithms use content recommendation systems to deliver personalized recommendations. Pixabay, TungArt7 From movie ...