Earth vs Knowfeed

NASA's Earth Now is an application that visualizes recent global climate data from Earth Science satellites, including surface air temperature, carbon dioxide, carbon monoxide, ozone, and water vapor as well as gravity and sea level variations. Data sets are visually described using "false color" maps. Color-coded legends are provided to indicate relative strength or weakness of an environmental condition. The resulting 3D model of the Earth may be rotated by a single finger stroke, and may also be zoomed in or out by pinching 2 fingers. It was developed by the Earth Science Communications and Visualization Technology Applications and Development Teams at NASA's Jet Propulsion Laboratory, with support from NASA Headquarters.

knowfeed is the fastest way to become a more curious person. Swipe through short, verified facts from expert publishers — on science, history, culture, business, and more. Each one is written to stick. LEARN IN SECONDS Facts are written short enough to read in a moment, deep enough to make you think. No filler, no noise. BUILD A HABIT Your daily streak tracks how often you show up. XP and levels grow with every fact you read. Badges mark the milestones. FOLLOW WHAT MATTERS Follow topics and publishers you trust. Your feed becomes more personal the more you read. SAVE AND COLLECT Save facts you want to remember. Group them into collections and share them with others. SEE HOW YOU COMPARE View friends' reading streaks, levels, topic breakdowns, and earned achievements on their public profile. knowfeed is free to read. No ads inside the reader — just facts.