Launch Schedule: How to Read and Track Upcoming Rocket Launches

A launch schedule is a running list of upcoming rocket launches and spaceflight events, each with a time, vehicle, mission name, and location. On Next Spaceflight, the schedule is organized around an "Up Next" countdown at the top, followed by individual launch entries and a separate events section. You can read it directly on the website or use the Android and iOS apps for notifications, live timelines, and a "Next Launch" widget. The schedule is most useful when you treat every time as provisional: launch windows shift, and entries marked NET or TBD are not firm commitments.

What a launch schedule entry tells you

Each row in a schedule packs several pieces of information into a compact format. Using the entries visible on Next Spaceflight as examples:

The landing marker is easy to overlook but informative. "Splashdown" means a water recovery; "LZ-40" and "LZ-4" are landing zones, indicating a return-to-land or droneship-style recovery rather than an expendable flight. For reusable vehicles, this tells you whether the booster is expected to fly again.

How to read countdowns, NET, and time zones

Three conventions trip up new schedule readers:

• Countdowns count down to the next scheduled event, which may be a launch, a docking, or a splashdown — not always a liftoff. On Next Spaceflight the top "Up Next" block is the soonest event across the whole schedule.
• NET stands for "No Earlier Than." An entry like "NET October, 2026" for the SpaceX Crew-12 undocking means the event will not happen before that window, but could slip later. Treat NET dates as the earliest possible, not a promise.
• TBD means the time is not yet assigned. A TBD entry can move onto the calendar with little notice.

Time zones are the most common source of confusion. A schedule displays times in one reference zone, but your local clock may differ. Before you plan to watch, convert the listed time to your own zone. If a launch is listed for "Thursday, 15:10" at Cape Canaveral, that is Eastern Time; a viewer in California would watch three hours earlier, and a viewer in Europe would need to add the offset for their zone.

Filtering the schedule by provider, rocket, or location

A full schedule mixes many operators and sites. Next Spaceflight provides filter tabs for major providers, including SpaceX, Rocket Lab, Blue Origin, ULA, Arianespace, ISRO, and Roscosmos, plus an "All Launches" view. Filtering is the fastest way to answer questions like:

• "When is the next Falcon 9 launch?" — filter to SpaceX and scan the vehicle column for Falcon 9 Block 5.
• "What is launching from Vandenberg?" — scan the location column for Vandenberg SFB.
• "When does the next Starship fly?" — filter to SpaceX and look for Starship-Super Heavy entries.

Filtering by provider also helps you follow a specific reusable vehicle program, since each provider's entries show the rocket configuration and landing marker together.

Following launches and events with notifications

The schedule itself is passive; notifications make it active. Next Spaceflight offers an app for Android and iOS with features that go beyond the website:

• Notifications for upcoming launches and events
• Live launch timelines
• Flight simulations
• A live "Next Launch" widget

The app is described as free to download from Google Play and the App Store. If you want a reminder before a specific launch rather than checking the site manually, the notification feature is the practical reason to install it. The website is designed to work on mobile devices, but the app is presented as the better mobile experience.

Beyond launches, the schedule includes an Events section for non-launch milestones. Current examples include the Juice spacecraft's Earth gravity assist, the SpaceX Crew-13 docking with the International Space Station, and the Crew-12 undocking. These matter if you are tracking a mission end-to-end rather than just watching liftoffs.

Checking for delays, scrubs, and schedule changes

Launch schedules change constantly. Weather, technical issues, range conflicts, and payload problems can push a launch by minutes, days, or months. To stay accurate:

1. Re-check close to the window. A time that was firm yesterday can move today. The countdown at the top of the schedule is the most current signal.
2. Watch for NET and TBD labels. These are explicit warnings that the time is not fixed.
3. Use notifications. If a launch is rescheduled, an app notification reaches you without manual checking.
4. Read the news section. Next Spaceflight links articles from outlets such as NASASpaceflight.com, which often explain why a schedule changed — for example, pre-flight test results or manifest updates.

A scrub is a launch attempt stopped before liftoff, usually with a new attempt scheduled within days. A delay is a move of the planned time before the attempt begins. Both appear as updated entries rather than separate alerts, so the schedule is a living document, not a fixed calendar.

A practical routine for tracking a launch

If you want to follow a specific mission from schedule to liftoff:

1. Open the schedule and filter to the provider.
2. Find the mission row and note the vehicle, location, and landing marker.
3. Convert the listed time to your local zone.
4. Check whether the time is firm or marked NET/TBD.
5. Set a notification or note the "Watch" link for live coverage.
6. Re-check the entry on launch day, since the countdown reflects the latest status.

This routine works for any provider on the schedule, whether you are watching a routine Falcon 9 rideshare like Transporter 18 or a high-profile test flight like Starship Flight 14.