Yes, objects called moons or natural satellites move around planets. Each planet in our Solar System, except Mercury and Venus, has at least one moon. These moons orbit their respective planets and vary in size and composition.
Tiwari Academy Discussion Latest Questions
Planets not visible to the naked eye can be seen using telescopes. These instruments magnify distant objects, allowing us to observe planets that are too faint or distant to be seen without optical assistance.
The Moon is much smaller than Earth. It has a diameter of about 3,474 kilometers, compared to Earth’s diameter of about 12,742 kilometers. This makes the Moon roughly one-fourth the size of Earth.
Planets and stars can be distinguished by their appearance. Planets usually shine with a steady light and move against the background of fixed stars. Stars twinkle due to atmospheric disturbances, while planets do not.
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.
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.
The Indian Astronomical Observatory in Hanle is crucial for advanced astronomical research due to its high altitude, clear skies, and minimal light pollution. It enables precise observations of celestial objects and contributes to significant discoveries in astronomy.