Free Cosmic Observatory — Live Universe Data You Won't Find Elsewhere
This free cosmic observatory dashboard brings together real-time data from multiple space agencies and scientific sources into a single, visually stunning interface. Unlike static astronomy websites or AI chatbots that can only tell you general facts, this tool shows you what is actually happening in space right now — from asteroids passing near Earth today to the exact position of the International Space Station overhead and the precise distance of Voyager 1 from our planet at this very second.
Asteroids Near Earth Today — Live NASA NEO Data
The asteroid tracker uses NASA's NeoWs feed (built on CNEOS orbit solutions) to display every asteroid making a close approach to Earth today, with summary stats, filters and the local time of each closest approach, plus JPL's close-approach database for every known pass within five lunar distances over the next 60 days. For each object you can see the estimated diameter in metres, approach velocity in kilometres per second, miss distance in both lunar distances and kilometres, and whether NASA classifies it as a potentially hazardous asteroid. This is the same data used by planetary defence scientists — most people never see it presented this clearly. Search engines rarely surface this level of detail for queries like "asteroids near earth today" or "nearest asteroid to earth right now."
ISS Tracker, Voyager Distance & Cosmic Calculators
The ISS tracker shows the International Space Station's current position on a world map with the live day/night terminator, its past and next ground track (computed with the SGP4 orbit model from the latest NORAD orbital elements), live altitude and speed, and whether the station is in sunlight. Share your location and it predicts ISS passes over you for the next three days, flagging the ones you can actually see with the naked eye. A live crew panel shows everyone in orbit right now. The Voyager tracker anchors both probes to published NASA/JPL positions — including Voyager 1 becoming the first spacecraft one light-day from Earth on November 18, 2026 — and the Moon and planets panel computes tonight's Moon phase and the live distance to every planet. The light speed calculator shows how far a photon has traveled since you opened the page, with comparisons to Earth-Moon distance, Earth circumference, and Earth-Sun distance. The planetary weight calculator lets you see your weight on all eight planets plus the Moon, Pluto, and the Sun.
Free — No Signup, No Ads, No Data Collection
This cosmic observatory is completely free to use with no registration required. It runs entirely in your browser using public NASA APIs and calculated astrophysical data. Every counter ticks in real time — the universe age, Voyager distances, light travel, and cosmic process counters all update live. It is one of the free browser-based tools available at jasperbernaers.com.