Q&A with Heino Falcke, principal investigator of the Netherlands-China Low-Frequency Explorer (members only)

SpaceX readied a Falcon 9 rocket for takeoff Monday to launch a planet-hunting satellite for NASA that will monitor the light from countless stars to find potentially habitable planets worthy of follow-up studies by more powerful ground- and space-based observatories.

Blue Origin has partnered with Lockheed Martin and Northrop Grumman to build elements of the company’s human-rated lunar lander, and Draper will lead development of the lander’s avionics and guidance systems, with an aim to be ready to land a crew on the moon by 2024, company founder Jeff Bezos announced Tuesday.

On the eve of the Cassini spacecraft’s deepest pass through the polar plumes of Enceladus, Spaceflight Now’s Stephen Clark spoke with Jonathan Lunine, a member of the mission’s science team from Cornell University, about what he hopes to learn from the encounter.