Video: NASA mission launched to return sample of asteroid

The first test flight of Rocket Lab’s commercially-developed Electron launcher was held up by weather Sunday, but conditions could improve for a launch attempt Monday from New Zealand to place an instrumented rocket stage into Earth orbit in a demonstration of the company’s low-cost delivery system for lightweight satellites.

A United Launch Alliance Atlas 5 rocket is set to roll to its launch pad Wednesday at Cape Canaveral, a day before liftoff with a new-generation NOAA weather satellite. The launch of a SpaceX Falcon 9 rocket with a Spanish communications satellite is expected to be shuffled after the Atlas 5 flight in a rapid-fire launch sequence at the Florida spaceport this week.

Ground crews at the Guiana Space Center in South America have spent the last few months preparing the BepiColombo spacecraft, a tandem mission with European and Japanese science orbiters bound for Mercury, for launch aboard an Ariane 5 rocket.