
NAC 2025 is Here! Be Part of India’s Biggest Astronomy Challenge.
For Schools: Enable students (Grades 4–9) to join India’s biggest astronomy challenge.
For Parents: If the school isn’t participating, register your child directly and let them shine.
National Astronomy Challenge Explained
A unique talent discovery program inspiring students of Grades 4–9 through space and astronomy.
Participation Pathways - Choose Your Journey
Whether through your school or directly as a parent, every child has a gateway to cosmic adventure
Path 1: School Registration
Registration via School INR 500 INR 300 (Taxes extra)
Schools register → get custom registration link.
School shares the dedicated registration link with students.
Students starts registering on their school specific link.
Path 2: Direct Registration
Not through School Registration: INR 500 (Taxes extra)
For students whose schools are not participating.
Register directly by grade.
If their school joins later, their direction registration will be merged with the school’s.
Prepare for NAC with Spacetopia
The reimagined learning platform, formerly known as Cosmic Kids Club.

Access interactive, grade-wise NAC preparation material.

Go beyond NAC: explore live quizzes, read comics, watch 5-minute concept videos, and attempt challenges to climb the leaderboard.

Enjoy continuous space learning that lasts even beyond the Olympiad.
Know More
Celebrating Excellence, Inspiring Futures
Honoring Achievements with a Space Expedition & Awards Ceremony – 2025

Udaipur Solar Observatory, Udaipur
NAC 2025
Important Timeline

REGISTRATION OPENS
25th August 2025

REGISTRATION CLOSES
15th December 2025

OLYMPIAD EXAM
January 2026

RESULTS ANNOUNCED
March 2026

AWARDS & UDAIPUR VISIT
May 2026