As the Orlando Sentinel celebrates its 150th birthday this year, here’s a look back at key dates in the history of the newspaper.

Amazon Web Services is developing a top secret self-service managed services offering, code-named Sentinel, which could let large enterprise customers manage and monitor their public cloud workloads ...

The LGM-35A Sentinel, formerly known as Ground-Based Strategic Deterrent (GBSD), is an intercontinental ballistic missile representing the ground-based leg of the United States nuclear triad.