SpaceX’s Transporter-18 mission, launching October 1, will carry 130 payloads to orbit on a single Falcon 9. But what exactly is a rideshare launch — and why does it matter?

Think of it as carpooling to space. Instead of one customer paying for an entire rocket, dozens of satellite operators share a ride, splitting the cost. Transporter missions fly on a fixed schedule, like a bus route, making space access cheaper and more predictable for small players.

The payloads range from small satellites to orbital transfer vehicles — “tugs” that ferry satellites to their final orbits after deployment. All 130 will go to a sun-synchronous orbit, which passes over the Earth at the same local time each day — ideal for imaging satellites.

Transporter-17 flew in early July with 81 payloads; Transporter-18’s 130 shows how fast the small-satellite market is growing.

Among today’s passengers is a Google research satellite testing AI chips in orbit. For the space industry, rideshares have become the workhorse making the orbital economy possible — one shared rocket at a time.