Rocket: Antares
Payload: Demo
Launch Date: April 21
Launch Time: 5 p.m. EDT (2100 GMT)
Window: 3 hours
Site: Pad 0A, Mid-Atlantic Regional Spaceport, Wallops Island, Va.

Countdown timeline

Launch timeline

Rollout photos

Prelaunch photos

Ground track map

Visibility map

A-ONE mission overview

Antares brochure

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We will have live streaming coverage of the launch.

Mission Status Center

By Stephen Clark

Welcome to Spaceflight Now's live coverage of the first launch of the Orbital Sciences Antares rocket. Text updates will appear automatically; there is no need to reload the page. Follow us on Twitter.

Expedition 29 Patch