No Exam or Olympiad stress
A joyful, stress-free way to explore space at their own pace.
Big questions. Wrong guesses. Amazing discoveries.
Join Arlo, Arla & Cheeko as they question what they know about space — and discover what's really true.
For Grade 4
A unique way to get children (and families) exposed to space and the universe through stories, activities and experiences.
Fun Challenges and Activities
Hands-on missions, games and stories that spark curiosity.
Get Recognised on National Hall of Fame
Complete your journey and earn a place among outstanding young explorers.
Parents Get a Report
While they play, you get to see how they learn, with a simple and meaningful learning report.
We are a
Registered ISRO Space Tutor
Recognised by ISRO to conduct space education programmes for students across India.
We organise the
NAC – India’s most credible astronomy olympiad
For Grade 4–9 students, in India and UAE.
Meet Arlo, Arla & Cheeko
Three curious friends with big questions about space.
Confident, curious and always gets something wrong — and that starts the real learning!
Questions, checks and finds the facts. She always understands and doesn't correct Arlo — instead, she helps him question and discover the answer.
CheekoBrings humour, tries things out and sees space in a different way. He often stands by Arlo to help find the answers.
Three exciting comics
for Grade 4
Arlo Gets
It Wrong
Big questions. Bigger discoveries with Arlo, Arla and Cheeko.
Book 1
The Sun
Who needs the sun?
Book 2
Pluto, stars and constellations
Nothing up there can surprise me
Book 3
Satellites, Space missions
Space has nothing to do with us
MISSIONS AND CHALLENGES
From Story to Adventure
Step into exciting missions, solve fun challenges and explore the universe.
Moon survivor mission on Explorium, slide 2 of 3
READ
Read the story together.
EXPLORE
Open the related missions on Explorium.
Discover
Observe, listen, understand, reason and apply.
Register your child
Curiosity leads the way
See How Your Child Thinks
Every mission gives you a deeper view of how your child learns and approaches challenges.
Observation
What they notice
Understanding
What they understand
Reasoning
How they compare and decide
Application
How they use the idea
Built from your child's mission journey — including responses, correctness, time and use of hints.
Every Explorer Has a Place to Shine
Hall of Explorers
Complete your first Explorium mission and earn your place in the Hall of Explorers.
National Hall of Fame
Complete all 45 missions across every book and earn full national recognition.
Opens 12 February 2027
Here is Our 30-Day Challenge for Your Child!
How the
Challenge
Works
Choose your plan and begin your family's space adventure.
Online Books
Read on Explorium. Missions unlock instantly.
Physical Books
Books arrive at home first. Missions unlock after delivery.
All challenges are on the platform. Your username and password are sent to your email and WhatsApp.
Read. Play.
Explore.
Read the book, visit the platform, play games, try activities, and earn Curiosity Points along the way.
Keep going to find your child's place in the Hall of Explorers.
Aim for the
National Hall of Fame
Read the books and complete all 45 challenges in 30 days. Earn Curiosity Points and see your child's name in the National Hall of Fame.
Top 50 children from each grade receive a personalised framed certificate shipped to their home or school.
Choose your Explorer Journey
Two ways to begin. One universe to explore.
Explorer Pack
1 Book + 1 Journey
₹499/-
1 Grade 2 & 3 or Grade 4 book- Learning experience for your selected book
- Missions & challenges
- Hall of Explorers
National Hall of Fame eligibility- Mystery Gift eligibility
- Parent Report
Explorer Collection Pack
3 Books + Complete Journey
₹1299/-
Complete book collection- Learning experiences for all books
- All missions & challenges
- Hall of Explorers
- National Hall of Fame eligibility
- Mystery Gift eligibility
- Parent Report
The Grade 4 Journey
From comic to the Hall of Fame – a simple path to big discoveries.
Get the book
Read the story
Activate Explorium
Complete the missions
Earn badges & Certificates
Receive your learning report
You are in NATIONAL HALL OF FAME!
Frequently Asked Questions
Arlo Gets It Wrong — parent questions focused on books, plans, timelines and recognition.