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Prelims Current Affairs Quiz

UPSC Prelims Current Affairs

UPSC Mains Current Affairs

January 2026

Current Affairs

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GS-II: International Relations (1)
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GS-III: Economic Development (101)
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low Earth orbit

Low Earth orbit (LEO) lies between 160 to 2,000 kilometers above Earth. It is crucial for satellite operations, including communications and Earth observation. Many international space stations, like the ISS, reside in LEO. This region experiences minimal radiation, making it ideal for human missions. LEO allows for faster satellite deployment and lower launch costs, benefiting global economies and technological advancements.

Solar Activity Impact on Satellite Re-entry

A study led by the Indian Space Research Organisation (ISRO) indicates that heightened solar activity sharply accelerates the orbital decay of defunct satellites and space debris in Low...

May 6, 2026