text:   Balloon-Borne Telescope",8,"['New paper: Constraint on primordial gravitational waves from the first flight of SPIDER, a balloon-borne CMB telescope: <LINK> <LINK>', 'SPIDER is an ambitious instrument: six millimeter-wave telescopes containing &gt;2000 superconducting detectors, housed in a 1300 liter cryostat, hanging from a string at 35 km altitude.', 'Ballooning lets us observe in space-like conditions, largely free from the fluctuating glow of the atmosphere that plagues even the best Earth-bound observing sites.', 'This pristine vantage point brings challenges: strict mass and power constraints, and a horrifying inability to fiddle with your instrument after launch. It has to basically run itself, with minimal communication, its first time out.', 'Ballooning is also a key way we flight-qualify technologies for future space missions. And incredible training for new crops of space scientists and engineers.', ""This has been a long road, and I've been privileged to work with a fantastic team. Here's to further adventures with new instruments, on the ground and in the air!"", 'The view from the stratosphere over Antarctica: looking down with an optical camera on the gondola, and looking up with SPIDER itself. https://t.co/luxg73CBWM', ""While I'm here, I should advertise: we have postdoc positions open, in cosmology from balloons and ground! https://t.co/h64hof8zOv""]",21,03,1300