Near-Earth Object
Full Form of NEO
What is NEO?
A Near-Earth Object (NEO) is any celestial body—such as an asteroid, comet, or meteoroid—whose orbit brings it within 1.3 astronomical units (AU) of the Sun, and therefore within approximately 45 million kilometers of Earth’s orbit. These objects are of immense scientific and practical interest because they represent both potential hazards and opportunities. In India, the Indian Space Research Organisation (ISRO) monitors NEOs through its Network for Space Objects Tracking and Analysis (NETRA) and participates in global initiatives like the International Asteroid Warning Network (IAWN). NEOs are studied to assess the risk of Earth impacts, which could cause significant regional or global damage. They also serve as remnants from the early solar system, offering clues about planetary formation. The term is commonly used in planetary science, astronomy, and space missions. For students preparing for UPSC, JEE, or NDA exams, knowledge of NEOs is relevant in questions related to space technology, disaster management, and Earth's environment. Recent missions like NASA's DART and ISRO's planned asteroid rendezvous highlight the growing focus on NEO deflection and exploration.
NEO का फुल फॉर्म
पृथ्वी के निकट की वस्तु
Example
ISRO tracks NEOs using its NETRA network to predict potential collision courses with Earth.