The Alphabet-backed spaceflight operator has extended its latest round to $450m, indicating the continued investor interest in space technologies.

SpaceX, the space services provider backed by internet and technology group Alphabet, added $100m to a funding round now sized at $450m last week, showing the space sector is still attracting some big money.

Also known as Space Exploration Technologies, SpaceX develops and produces spacecraft it then launches from sites in Florida, California and Texas in order to transport cargo and personnel into space, and has introduced innovations such as reusable rockets to the process.

The additional funding was…