Halley’s Comet is a famous periodic comet that orbits the Sun every 76 years. Named after astronomer Edmond Halley, it becomes visible from Earth during its closest approach and is known for its bright and spectacular appearance.
Category: Class 6 Science
NCERT Solutions and Important Questions for class 6 Science for CBSE exams 2020-2021.
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Beyond the Solar System lies the vast expanse of interstellar space, filled with stars, star systems, and other celestial objects. The closest neighboring star system is Alpha Centauri, and the region includes the Oort Cloud and various exoplanets.
The Milky Way Galaxy, or Akasha Ganga, is a vast spiral galaxy containing our solar system. It features a central bulge, spiral arms, and a surrounding halo of stars, gas, and dust, forming a bright band across the night sky.
As of now, scientists have not found definitive evidence of life elsewhere in the universe. However, the discovery of potentially habitable exoplanets and moons suggests that life could exist beyond Earth, and research continues to explore this possibility.
Beyond the Milky Way Galaxy lies a vast expanse filled with other galaxies, galaxy clusters, and cosmic structures. This includes the Local Group of galaxies, the Virgo Cluster, and the broader universe, extending infinitely with numerous celestial objects.