AsteroTrack vs COSMOS

AsteroTrack lets you explore near-Earth asteroids using data provided by the NASA NEO API. Check upcoming approaches, discover the most relevant objects of the week, and better understand each asteroid through clear visualizations of distance, size, speed, and risk level. Key features: • Summary of near-Earth asteroids for today and the coming days. • Official NASA data including distance, diameter, speed, magnitude, and approach date. • Visual approach diagram relative to Earth and the Moon. • Size comparison with familiar real-world references. • Advanced filters by hazard status, distance, size, and speed. • Search by date, name, ID, and custom date ranges. • Favorites with personal notes. • Official NASA/JPL links when available. • Configurable alerts for relevant approaches. • Unit options and language selection between system, Spanish, and English. • Recent data caching for previously loaded information. AsteroTrack is designed for curious users, students, astronomy enthusiasts, and anyone who wants an easy way to follow near-Earth objects. Data is retrieved from public NASA/JPL sources. Risk classifications are informational and do not replace official communications from space agencies.

COSMOS is a solar system you hold in your hand. This is not a decoration. Every planet sits exactly where it is right now, computed from real orbital mechanics. Where is Jupiter tonight? How are Saturn's rings tilted? Open the app — the answer is there. - REAL ORBITS Positions of all 8 planets and the Moon are computed from Keplerian orbital elements in real time. Scrub through time to see the sky 10 years from now — or the day you were born. - PHOTO-REAL TEXTURES Saturn's rings, Jupiter's Great Red Spot, sunspots and solar granulation — every texture is generated on your device and stays crisp as you zoom. - CONTROL TIME From one second = hours, to one second = years. Watch the Moon change phase and the planets trace their orbits with your own eyes. - EXPLORE FREELY Pinch and swipe from outside the solar system down to a planet's face. Tap any body for details. - FREE FOR EVERYONE - Every feature is free — nothing locked behind a paywall - Just a small banner ad, never covering the view - Works offline, on a plane or on a mountain - Enjoying COSMOS? Leave an optional tip to support development For curious kids asking "why?" For stargazers who want a quiet moment of awe. The real universe, in your pocket. LANGUAGES English, Japanese, Simplified Chinese, Korean, Spanish, French, German