Rockets launch from a relatively small number of specialized sites around the world, chosen primarily for two reasons: proximity to the equator and access to open water downrange. The United States, China, Russia, and Europe each operate major spaceports, and a growing number of commercial facilities are joining them. Where a rocket launches from directly affects how much payload it can carry and which orbit it can reach.
Why Location Matters
Earth’s rotation gives rockets a free speed boost, and that boost is biggest at the equator. At the equator, the ground is already moving at 1,670 kilometers per hour (about 1,037 mph). Halfway to the poles, that speed drops to roughly 1,180 km/h. That difference of nearly 500 km/h means a rocket launching from an equatorial site needs less fuel to reach orbital speed, which translates directly into more payload capacity.
This is why launch sites cluster at lower latitudes when possible, and why most rockets launch eastward: they’re riding Earth’s spin. Launching east also means spent rocket stages and any debris fall over open ocean rather than populated areas, which is the second major factor in site selection. Coastal locations with nothing but water to the east (or south, for polar orbits) are ideal. Safety zones around launch sites can be enormous. The exclusion zone off SpaceX’s Texas facility, for example, covers roughly 115 square miles of ocean.
Major U.S. Launch Sites
The two primary NASA launch locations are Cape Canaveral Space Force Station and Kennedy Space Center in Florida, and Vandenberg Space Force Base in California. They serve fundamentally different purposes based on geography.
Florida’s sites sit at about 28.5° north latitude, making them the closer U.S. option to the equator. Rockets launched from Cape Canaveral head east over the Atlantic Ocean, taking advantage of Earth’s rotation. This makes Florida the go-to site for missions heading to equatorial orbits, geostationary orbits (used by communications and weather satellites), and the International Space Station. Nearly all crewed U.S. missions have launched from Florida.
Vandenberg, on California’s central coast, is used for missions that need to fly north or south rather than east. Satellites heading into polar orbits, which pass over both poles as Earth rotates beneath them, launch from Vandenberg because the flight path heads south over the Pacific Ocean with no populated land below. Launching into a polar orbit from Florida would send a rocket over populated areas along the Eastern Seaboard or Caribbean.
SpaceX also operates its own facility, known as Starbase, at Boca Chica in southern Texas. This is the launch site for Starship, the largest rocket ever built. The FAA has authorized up to 25 Starship launches per year from Boca Chica, with rockets flying east over the Gulf of Mexico. The site’s southern Texas location puts it closer to the equator than Cape Canaveral by a small margin.
Europe’s Equatorial Advantage
The European Space Agency launches from the Guiana Space Centre near Kourou in French Guiana, on the northeastern coast of South America. At roughly 5° north of the equator, it’s one of the best-positioned launch sites on Earth. The equatorial boost there is so significant that the same rocket can carry nearly twice the payload to geostationary orbit from Kourou as it can from Baikonur in Kazakhstan. A rocket that lifts 2 tonnes to geostationary transfer orbit from Baikonur can carry 3 to 3.2 tonnes from Kourou. Russia recognized this advantage and began launching its Soyuz rockets from Kourou as well, gaining access to what experts consider one of the best locations on the planet for deploying telecommunications satellites.
Russian and Kazakh Facilities
Baikonur Cosmodrome in Kazakhstan is the most historically significant launch site in the world. It’s where the first satellite, the first human in space, and countless crewed missions originated. Built during the Soviet era, the site remains active under a Russian lease agreement with Kazakhstan. Its high latitude (about 46° north) is a disadvantage for equatorial missions, but it remains Russia’s primary hub for crewed Soyuz flights and many other missions. Russia also operates the Plesetsk Cosmodrome in its far north, primarily for military satellites heading into polar and high-inclination orbits, and has built the newer Vostochny Cosmodrome in its far east to reduce dependence on Baikonur.
China’s Launch Network
China operates four launch sites spread across the country. Jiuquan Satellite Launch Center in the Gobi Desert is the oldest and most active, used for crewed missions and many satellite launches. Xichang, in southwestern Sichuan province, handles geostationary satellite launches. Taiyuan, in northern China, focuses on polar orbit missions. The newest site, Wenchang on Hainan Island, is China’s most southerly launch facility and its only coastal one, giving it both an equatorial advantage and a safe eastward trajectory over the South China Sea. China has rapidly scaled its launch tempo, making it the second most active launching nation behind the United States.
Other Active Spaceports
India launches from the Satish Dhawan Space Centre on Sriharikota Island, off the southeastern coast. At about 13.7° north, it has a reasonable equatorial advantage and sends rockets east over the Bay of Bengal. Japan uses the Tanegashima Space Center on a southern island for most orbital launches. New Zealand’s Mahia Peninsula hosts Rocket Lab’s Launch Complex 1, one of the busiest small-rocket launch sites in the world, with a flight path heading over the South Pacific.
Israel is a notable exception to the “launch eastward” rule. Because launching east would send rockets over hostile neighboring territory, Israeli rockets launch westward over the Mediterranean Sea, sacrificing Earth’s rotational boost entirely and requiring more powerful rockets for a given payload.
Launching From the Sea and Air
Not all rockets launch from fixed ground sites. Sea Launch, a now-defunct venture, deployed rockets from a converted oil platform called Odyssey that could be positioned directly on the equator in the Pacific Ocean, maximizing the rotational speed advantage. The concept is making a comeback: the Spaceport Company won U.S. military contracts in 2024 to explore mobile ocean-based launch platforms, and it supported a subscale rocket test launch from a proprietary launchpad vessel that same year. Firefly Aerospace has also discussed rapid launches of its Alpha rocket from a sea-based platform.
Air launch is another approach. A carrier aircraft flies to high altitude and releases a rocket, which then ignites its engines. This method skips the thickest part of the atmosphere and allows launches from virtually any location with a suitable runway, though it’s limited to smaller rockets. Virgin Orbit used this approach with its LauncherOne rocket (carried by a modified 747) before ceasing operations in 2023. Northrop Grumman’s Pegasus rocket, carried aloft by its Stargazer L-1011 aircraft, pioneered commercial air launch in the 1990s.
Why New Spaceports Keep Appearing
The surge in commercial launches has created real congestion at established sites. Cape Canaveral and Vandenberg handle dozens of missions per year from multiple companies, and scheduling conflicts are a growing problem. Ocean-based platforms are being studied partly as overflow capacity. New ground-based spaceports have also opened or are under development in places like Scotland, Sweden, and Australia, often targeting the small satellite market. Each new site is still governed by the same basic physics: latitude for efficiency, open water or uninhabited land for safety, and stable weather for reliability.