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Hyperlocal air pollution map with AQI and PM2.5
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Information about the Sun and tools for building and understanding sundials.
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Night sky viewer with quiz modes for familiarisation training
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Space Club - An app to explore the unseen and awe-inspiring space contents
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Dive deeper into news, updates, and discoveries about space, NASA, and astronomy
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1. Enter your sighting 2. Upload your sighting 3.Done!
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NASA Be A Martian offers exciting ways learn about Mars missions.
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Seabook: Scuba Diving with Marine Biology. Encyclopedia for PADI, SSI divers
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Healing & Meditation, Brainwaves Binaural Beats, Spiritual Awakening Balancing.
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Count stars for science! Help track how light pollution is changing worldwide.
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A Calendar & Planner app based on the Sirius Star used by the Ancient Egyptians
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A simple & precise bubble level app to test the level or plumb easily!
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Live Animated Radar and Forecasts: Storms, Snow, Rain, Wind, Temperature & More
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One- or two-semester introductory astronomy courses.
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A 3D viewer to explore the planets of our Solar System in high resolution.
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Star Hoppers integrates the Chinese and Western star charts.
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Grammar Lessons, Exercises, and Tests for Cambridge English Exams B1, B2, C1, C2
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Tracking the live position of satellites and predicting their passes
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Geography learning app for children teaching your child about our world and more
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The Zooniverse is the world’s most popular platform for people-powered research