Video: Juno’s countdown to Jupiter

The first months of observations of the solar system’s biggest planet from NASA’s Juno spacecraft have revealed huge swirling polar cyclones, previously-undetected structures and motions beneath Jupiter’s distinctive clouds, and the first evidence for what lies at the core of the gas giant, scientists said Thursday.

United Launch Alliance, the incumbent leader in U.S. rocketry, goes for its 100th flight Friday, a milestone nine years in the making after eclectic missions to Mars, the moon and Jupiter, and deployments of commercial, military and reconnaissance spacecraft.

Alvaro Giménez Cañete manages the European Space Agency’s science program, a portfolio with a budget of nearly $600 million this year, and he recently spoke with Spaceflight Now about Europe’s hopes to build a gravitational wave observatory, the ExoMars mission to Mars, and tagging along with NASA’s probe to Jupiter’s moon Europa.