SOLAR SYSTEM

Detailed explanation-1: -Introduction. Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter the Earth’s neighborhood.

Detailed explanation-2: -The Near-Earth Object Surveyor space telescope (NEO Surveyor) is designed to help advance NASA’s planetary defense efforts to discover and characterize most of the potentially hazardous asteroids and comets that come within 30 million miles of Earth’s orbit. These are collectively known as near-earth objects, or NEOs.

Detailed explanation-3: -NEO Groups The vast majority of NEOs are asteroids, referred to as Near-Earth Asteroids (NEAs). NEAs are divided into groups (Atira, Aten, Apollo and Amor) according to their perihelion distance ( q ), aphelion distance ( Q ) and their semi-major axes ( a ).

Detailed explanation-4: -Near-Earth objects (NEOs) are asteroids or comets of sizes ranging from metres to tens of kilometres that orbit the Sun and whose orbits come close to that of Earth’s. Of the more than 600 000 known asteroids in our Solar System, more than 20 000 are NEOs.

Detailed explanation-5: -a combining form meaning “new, ‘’ “recent, ‘’ “revived, ‘’ “modified, ‘’ used in the formation of compound words: neo-Darwinism; Neolithic; neoorthodoxy; neophyte.