Second ULA launch doubles Amazon's Kuiper satellite fleet

United Launch Alliance (ULA) launched a second batch of Amazon’s Kuiper satellites at the end of June, doubling the size of the growing constellation.

Amazon is building its Project Kuiper low Earth orbit (LEO) satellite network to provide reliable internet worldwide, including for ships on transocean voyages.

On 23 June 2025, ULA’s Atlas V rocket launched Amazon’s second batch of 27 satellites (KA-02) into orbit from Cape Canaveral in Florida, USA, bringing the number of Kuiper spacecraft launched to 54 satellites. The KA-01 batch was deployed from a similar rocket in April 2025.

Amazon said its LEO constellation will include more than 3,200 satellites in an assigned orbit of 630 km above Earth, which will require more than 80 launch missions.

ULA will fly seven more Atlas V launchers and 38 large Vulcan Centaur rockets for the Kuiper project. The US-based technology group also plans more than 30 launches with other providers such as Arianespace, Blue Origin and SpaceX.

Amazon Kuiper will compete with Elon Musk’s SpaceX’s Starlink LEO and Eutelsat OneWeb’s constellation, as well as established networks of geostationary orbiting and medium Earth orbit satellites.