Hacker News on 22 February 2017

• Seven earth-sized planets discovered circling a star 39 light years from Earth
• API Design Guide
• What Happens to Your Body on a Thru-Hike
• US Customs block Canadian man after reading his Scruff profile
• Tour of F#
• Instacart is playing games with its workers’ pay
• The Impact Github is Having on Your Software Career
• Google Site Search will be completely shut down by April 1, 2018
• Tesla Says Model 3 on Track as Quarterly Loss Beats Estimates
• Announcing TypeScript 2.2