← Another date

Birthday · May 16, 2026

Aurora Slathers Up the Sky

May 16, 2026

The universe is brighter with you in it. Happy birthday.

A little universe, just for you

Your date.
Ready to give.

Choose a greeting

Free PNG · 1080 × 1350 · No account needed

Image rights and credit requirements apply when sharing or reusing imagery.

Choose an image from another year

Your celebration date stays the same. Each image keeps its actual publication date.

Change the year

Selected image source ↗ APOD published May 16, 2026. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.

Behind the original result

Aurora Slathers Up the Sky

Original APOD · May 16, 2026 ↗

Read the original APOD for the astronomer’s explanation and full image credits. Its text is preserved in the archive as published.

Read the archived explanation

Like salsa verde on your favorite burrito, a green aurora slathers up the sky in this 2017 June 25 snapshot from the International Space Station. About 400 kilometers (250 miles) above Earth, the orbiting station is itself within the upper realm of the auroral displays. Aurorae have the signature colors of excited molecules and atoms at the low densities found at extreme altitudes. Emission from atomic oxygen dominates this view. The tantalizing glow is green at lower altitudes, but rarer reddish bands extend above the space station's horizon. The orbital scene was captured while passing over a point south and east of Australia, with stars above the horizon at the right belonging to the constellation Canis Major, Orion's big dog. Sirius, alpha star of Canis Major, is the brightest star near the Earth's limb.

Explore May 16 in other years · 31 APOD entries, 1996–2026

Updated · APOD entries through