The night sky is still there. We just can’t see it anymore.

≈ 25 stars visible to the naked eye

I’m Royce Dcunha — a student and space enthusiast. This project is about how artificial light is erasing our view of the universe, and what it takes to get the stars back.

Royce Dcunha ROYCE DCUNHA · MUMBAI, IN

01 / WHY IT MATTERS

83% of humanity lives under a light-polluted sky. One in three of us can no longer see the Milky Way.

A landscape under a pristine, star-filled dark sky with the Milky Way visible

02 / SAME PLANET, DIFFERENT SKIES

03 / SEEN FROM ORBIT

India,
switched on

From orbit, light pollution isn’t abstract. Every bright pixel is sky that someone underneath it has lost.

NASA VIIRS NIGHT COMPOSITE · 20.6° N, 78.9° E

Satellite view of India at night, cities glowing across the subcontinent DELHI MUMBAI KOLKATA BENGALURU

04 / THE BORTLE SCALE

Drag toward darkness

Astronomers grade night skies from class 9 — inner city — to class 1, the darkest places left on Earth. Drag the scale and watch the sky respond.

9

Inner-city sky

LIMITING MAG 4.0 · ≈ 25 STARS

Only the Moon, the planets and a few dozen stars survive the glow.

9 · CITY 1 · DARK

05 / TWO INDIAN SKIES

Mumbai vs Hanle

Two skies, one country, 2,000 kilometres apart. Drag the seam between a megacity’s glow and India’s darkest sky.

The night sky above Hanle, Ladakh — thick with stars
Mumbai's skyline glowing under an orange, starless night sky
◂ ▸
MUMBAIBORTLE 9 · ≈ 25 STARS · 20M PEOPLE UNDER GLOW 19.0760° N · 72.8777° E · ALT 14 M
HANLE, LADAKHBORTLE 1–2 · ≈ 4,000 STARS · INDIA’S FIRST DARK-SKY RESERVE 32.7790° N · 78.9640° E · ALT 4,500 M

06 / GETTING THE SKY BACK

Turn the lights off

Light pollution is the only pollution that vanishes at the speed of light. Tap each fix — and watch the sky above this page respond.

0 / 6 LIGHTS OFF