Space Time
Watch any eclipse
Predict and watch any eclipse, for any date and location. The sky darkens at totality and the Sun's corona appears; during lunar eclipses, Earth's shadow turns the Moon blood-red. Watch from space or from the ground, free in your browser.
🚀 Open the eclipse simulator Free · Any date, past or future · Any location
Total solar eclipses, corona and all
Place yourself anywhere on Earth and run time forward to a solar eclipse. As the Moon covers the Sun, the sky darkens and the corona comes out. Everything is rendered at the true relative sizes of the Sun and Moon, which is why partial, annular and total eclipses each look right. You can also pull back into space and watch the Moon's shadow sweep across the planet.
Lunar eclipses & the blood moon
During a lunar eclipse, a custom shader paints Earth's umbra across the Moon. It turns the deep red that gives the "blood moon" its name, with the timing computed for your location.
Finding the next eclipse
Eclipses are computed from real ephemeris data. Step to the next solar or lunar eclipse visible from your location, or time-travel to a historic one and see exactly how it played out in that sky.
The next great total eclipses
August 12, 2026, Iceland & Spain: the first totality over mainland Europe since 1999, with city-by-city local times and a live countdown. Then August 2, 2027, Spain, North Africa & Egypt: the longest totality on land this century, 6m 23s near Luxor.
FAQ
Can I simulate a solar eclipse?
Yes, for any date and location. The sky darkens at totality and the corona appears, viewed from space or the ground.
When is the next solar or lunar eclipse?
Step forward to the next eclipse from your location, or jump to any eclipse past or future and watch it unfold.
Can I see the blood moon?
Yes. Lunar eclipses render Earth's umbra across the Moon, turning it blood-red with accurate timing.
Is it free?
Yes. In your browser, no account, no download.