Space Science & Astronomy in Hindi
अंतरिक्ष विज्ञान हिंदी में — ScienceHindi 360
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Mind-Blowing Space Facts
Numbers that put the vastness of our cosmos into perspective
Galaxies
Estimated galaxies in the observable universe
Age of Universe
Years since the Big Bang created space and time
Speed of Light
Nothing in the universe can travel faster
Nearest Star
Light-years to Proxima Centauri, our closest stellar neighbor
Our Cosmic Neighborhood
Explore each planet with stunning visuals and fascinating facts
Click a planet to explore
Earth
The only known planet with liquid water oceans and life. Its magnetic field shields us from solar radiation.
Diameter
12,742 km
Moons
1
Day Length
24 hours
Gravity
1x
“The Earth is the cradle of humanity, but mankind cannot stay in the cradle forever.”
Konstantin Tsiolkovsky
Father of Rocketry
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Upcoming Space Events
Don't miss these historic launches and cosmic milestones
15
Sep
2026
Artemis III — First Crewed Lunar Landing Since Apollo
NASA targets September 2026 to return humans, including the first woman, to the Moon's South Pole.
Kennedy Space Center, USA
20
Nov
2026
First Uncrewed Starships to Mars
SpaceX plans to launch its first uncrewed Starship missions to Mars during the Earth-Mars transfer window.
Starbase, Texas
10
Dec
2026
Gaganyaan — India's First Human Spaceflight
ISRO's historic mission to send Indian astronauts (Gaganauts) into Low Earth Orbit for a 3-day mission.
Sriharikota, India
15
Apr
2027
LUPEX (Chandrayaan-4) — Lunar Polar Exploration
A joint ISRO-JAXA mission to send a lander and rover to explore the Moon's South Pole.
Tanegashima, Japan