Chapter 11: Sunita in Space
सुनीता अंतरिक्ष में (गुरुत्वाकर्षण, अंतरिक्ष स्टेशन एवं ग्लोब)
Don't Let a 20-Minute Bubbling Delay Cost You CTET Qualification
In offline CTET exams, bubbling 150 bubbles takes 18 to 22 minutes of mechanical time. A single misaligned row can trigger an 8-question domino error. Practice bubble-filling this chapter's solved MCQs inside Mentora's official OMR simulator.
- Sunita Williams: Indian-origin NASA astronaut who set the world record for the longest space flight by a woman (spending over 6 months / 195 days in space).
- Living in Zero Gravity: Water does not flow downward into a glass; it forms floating liquid droplets/blobs that astronauts dab with tissue paper.
- Hair stands upright continuously: Because there is no gravity to pull hair down, astronauts never need to comb their hair in orbit.
- Movement in Spacecraft: Astronauts do not walk; they float from one module to another and must strap themselves to their sleeping bags to sleep.
- Earth has no borders in space: When viewed from the International Space Station (ISS), national boundary lines drawn on maps do not exist on the ground; only land and sea are visible.
- Gravitational attraction: Earth pulls everything towards its center; water in fountains, apples falling from trees, and oceans are kept anchored by gravity.
- Trap: CBSE claims Sunita Williams is Kalpana Chawla. Correct: Kalpana Chawla died in the 2003 Columbia shuttle tragedy; Sunita Williams spent over 6 months in space and returned safely.
- Trap: CBSE states boundaries between countries are visible from space. Correct: Sunita Williams emphasized that borders are made by humans on maps, not visible from space.
- Trap: CBSE claims water stays in glasses in space. Correct: Water floats as liquid blobs in microgravity.
NCERT Core Facts: Space Travel, Microgravity & Earth's Horizon
Chapter 11 recounts astronaut Sunita Williams's experiences aboard the International Space Station, exploring gravity, weightlessness, and planetary perspectives.
1. Sunita Williams's Spaceflight Records
- Indian Heritage: Sunita Williams's father, Dr. Deepak Pandya, was a renowned doctor from Gujarat who emigrated to the United States.
- NASA Mission: She flew to the International Space Station (ISS) in December 2006 aboard Space Shuttle Discovery.
- Duration: She set the world record for the longest single spaceflight by a woman (over 6 months / 195 days) and completed multiple spacewalks totaling over 29 hours outside the spacecraft.
2. Daily Life Inside a Microgravity Spacecraft
| Activity on Earth | What Happens in Space (Microgravity) |
|---|---|
| Drinking Water | Water forms floating liquid droplets/blobs; astronauts catch blobs with tissue or drink through suction straws. |
| Hair & Grooming | Hair stands straight up at all times! Astronauts never comb their hair in orbit. |
| Eating Meals | Food trays and floating roti/bread packets must be chased down and caught mid-air in the cabin. |
| Walking & Moving | Nobody walks; astronauts gently push off walls and float like fish through corridors. |
| Sleeping | Astronauts cannot lie on a bed normally; they must strap their sleeping bags to cabin walls so they do not drift into ventilation grilles. |
3. Earth as Seen from Space
- When looking out the window of the space station, Earth appears as a dazzling blue, white, and brown sphere.
- No Artificial Boundaries: Sunita Williams famously observed:
"From here, we cannot see which country is India, Pakistan, or America! The division lines between countries exist only on paper maps drawn in human minds. From space, we only see land, sea, clouds, and one shared blue planet!"
Test Your Mastery: Sunita in Space
Authentic CBSE exam questions tested directly from this NCERT chapter.
Which of the following is an accurate description of life in a space shuttle as described by Sunita Williams in NCERT Class 5 EVS?
एनसीईआरटी कक्षा 5 ईवीएस में सुनीता विलियम्स द्वारा अंतरिक्ष यान में जीवन के संबंध में कौन सा विवरण सही है?
Who among the following spent more than six months in space, setting a world record as documented in NCERT Class 5 EVS?
एनसीईआरटी कक्षा 5 ईवीएस के अनुसार अंतरिक्ष में 6 महीने से अधिक समय व्यतीत कर विश्व रिकॉर्ड बनाने वाली कौन हैं?
How long did Sunita Williams spend in space according to NCERT Class 5 EVS?
According to NCERT Class 5 EVS Chapter 11, Sunita Williams spent more than six months in space aboard the International Space Station, setting the world record for the longest spaceflight by a woman.
Why does hair stand straight up in a space shuttle in CTET exams?
In outer space, there is microgravity (weightlessness). Without Earth's gravitational pull pulling hair down towards the ground, hair stands straight up continuously.
What did Sunita Williams say about national boundaries when viewing Earth from space?
Sunita Williams observed that from space, no national boundaries or division lines are visible on Earth; boundaries exist only on human-drawn maps, and only land and oceans are visible.