SkyTracko
Real-time space intelligence for every city on Earth. Pick a feature below to get started.
Tonight's highlights
Live · updated every 15 minutesSee your city's sky tonight
Pick any city to view its planets, moon, weather, and ISS passes.
Know what the sun is doing — right now
Track geomagnetic storms, solar flares, and the solar wind in real time. Plain-language impact for aurora chasers, ham radio operators, pilots, and satellite watchers — no jargon required.
- Live Kp index + 3-day storm forecast
- Solar flare classification (A → X) with 6-hour timeline
- Radio blackout alerts on the R-scale
- What each event means for your activities
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Psyche Receives Gravity Assist from Mars
Solar System bodies make deep space exploration more fuel efficient! Today’s video shows the Psyche spacecraft gaining speed and changing its trajectory with minimal fuel spent due to a gravity assist from Mars in May 2026. Mars has an average orbital speed of almost 87,000 km/h (54,000 mph) around the Sun. Its orbital motion and its gravity allowed Mars to pull Psyche along with it, increasing the spacecraft’s speed. Gravity assists have been used since 1959’s Luna 3 mission to allow for spacecraft (the Voyagers, Cassini) to reach farther than they could with fuel alone. This assist helped the Psyche spacecraft on its journey to the Psyche asteroid, which it will reach in 2029. While passing Mars, the spacecraft tested instruments that will analyze the asteroid’s composition and magnetic field. This is the first mission to an asteroid thought to be largely made of metal, an essential building block for planets, rather than rock or ice. Find dark skies and look up this August to witness the Perseid meteor shower uninhibited by the Moon!
Read the full explanation(2026 HJ)
Six ways to explore space
Every feature is live, free, and requires no account.
Tonight's Sky
Interactive panoramic sky view — search any city to see planets, the Moon, ISS passes, and meteor showers at their real positions.
Asteroid Tracker
Every near-Earth object approaching in the next 60 days — sorted, filtered, with distance meaning and risk classification.
Aurora Forecast
Cloud-adjusted Kp visibility for the world's best high-latitude cities — per-hour probability for the next 72 hours.
Space Weather
Live geomagnetic storms, solar flare class, radio blackout risk, and solar wind conditions — with plain-language impact.
Meteor Showers
Full annual calendar of major meteor showers — peak dates, expected hourly rates, and viewing tips for each event.
Picture of the Day
NASA's Astronomy Picture of the Day — a new image of the cosmos every 24 hours with expert explanation.
How it works
From picking a city to tracking asteroids — three steps, zero sign-up.
Pick a city
Search any of 33,000 cities worldwide or use your current location. Each city gets a personalised sky report.
See the live sky
Explore an interactive panoramic view with real-time planet positions, the Moon, ISS passes, and meteor showers — adjusted for local weather.
Track asteroids & aurora
Monitor near-Earth objects with risk classification, and check cloud-adjusted aurora forecasts for the world's best viewing cities.
Answers to common questions
Everything you need to know about the data, the forecasts, and what SkyTracko tracks for you every night.
SkyTracko shows you which planets, the Moon, the ISS, and meteor showers are visible from your city right now — cloud cover and moon phase included. Pick a city from the hero above or open the sky map to see a per-city report.
We combine NOAA's Kp index forecast with real-time cloud cover from Open-Meteo to produce a per-hour, cloud-adjusted visibility probability for each city. The forecast refreshes every 15 minutes and covers the next 72 hours.
The asteroid tracker lists every near-Earth object approaching in the next 60 days, sourced from NASA NeoWs. You can sort by closest, soonest, largest, or highest risk — and see the distance in lunar distances plus plain-language meaning ("Inside lunar orbit", "Well beyond lunar distance", etc.).
Asteroid data refreshes every minute in the browser and is synced from NASA NeoWs every six hours. Aurora and sky conditions refresh every 15 minutes. Each page shows the most recent sync time so you always know how fresh the reading is.
Yes — every feature on SkyTracko is free and requires no account. Optional sign-in is planned to let you save your favourite city and get notified about notable asteroid approaches and aurora events.
Can't find what you're looking for? Every feature page has its own detailed explainer and methodology notes.