Telescopes - Page 25

Telescopes are optical instruments designed to observe distant objects by collecting and magnifying light or other forms of electromagnetic radiation. They typically consist of a set of lenses or mirrors that focus light, allowing for the detailed observation of astronomical objects such as stars, planets, and galaxies. Telescopes can be classified into various types based on their design and the elements used to gather and focus light, including refracting telescopes, which use lenses, and reflecting telescopes, which utilize mirrors. They can also be divided into professional telescopes, used by astronomers for research, and amateur telescopes, which are often employed by hobbyists for personal exploration of the night sky. The invention of the telescope marked a significant advancement in astronomy, greatly enhancing our ability to study celestial phenomena.
Striking the Cosmic Balance: How a TV Signal Rattles the World of Radio Astronomy

Striking the Cosmic Balance: How a TV Signal Rattles the World of Radio Astronomy

Radio astronomy faces increasing interference from human-made technology, impacting cosmic observations. The Murchison Widefield Array, located in a radio quiet zone in Australia, detected terrestrial TV signals reflected by airplanes, leading to new insights. Researchers from Brown University confirmed that airplanes unintentionally
21 February 2025
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