Near-Earth Space secrets for UPSC Explained

Context:
Indian scientists are studying near-Earth space to understand the ionosphere and space weather, which affect communication, satellites and navigation systems.

Near-Earth Space

Near-Earth space includes the region around Earth influenced by:

  • Earth’s magnetic field
  • Solar radiation
  • Charged particles
  • Ionospheric activity

Ionosphere

The ionosphere is the ionised layer of Earth’s upper atmosphere.

It affects:

  • Radio communication
  • GPS accuracy
  • Satellite signals
  • Space weather effects

Ionospheric Layers

The ionosphere includes:

  • D region
  • E region
  • F region

Why It Matters

Changes in near-Earth space can affect:

  • Satellite communication
  • Navigation systems
  • GPS
  • Aviation
  • Defence communication
  • Power grids

Space Weather

Space weather refers to conditions in space caused mainly by solar activity.

It includes:

  • Solar flares
  • Coronal mass ejections
  • Geomagnetic storms
  • Charged particle flows

Significance

Studying near-Earth space helps improve:

  • Communication navigation
  • Satellite operations
  • Disaster prediction
  • Weather and climate understanding
  • Defence preparedness
  • Space mission safety
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Near-Earth Space secrets for UPSC Explained

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