Orbital ATK’s seventh Antares rocket stands ready for launch with a Cygnus supply ship Saturday on a two-day flight to the International Space Station.

Rocket Lab’s light-class Electron launcher is set to take off on its fifth flight from New Zealand, aiming for a 264-mile-high (425-kilometer) orbit with DARPA’s R3D2 technology demonstration satellite.

The European-built Solar Orbiter spacecraft was installed on top of its United Launch Alliance Atlas 5 launcher Friday at Cape Canaveral, ready for final charging and checkouts before liftoff Feb. 9 to finally begin a more than $1.5 billion science mission first approved by the European Space Agency nearly 20 years ago.