New Australian Radio Telescope Maps New Galaxies in 300 Hours

Category: Science/Environment

Listening

Unlocking Word Meanings

Read the following words/expressions found in today’s article.

  1. breakthrough / ˈbreɪkˌθru / (n) – an important discovery or event that helps to improve a situation or provide an answer to a problem
    Example:

    The cure for diabetes was recognized as a breakthrough in medicine.


  2. analogous / əˈnæl ə gəs / (adj) – similar in a way that allows comparison for better understanding
    Example:

    My life is analogous to being a passenger on a ship.


  3. atlas / ˈæt ləs / (n) – a book of maps
    Example:

    An atlas used by 16th-century European explorers was found in the library.


  4. game-changer / ˈgeɪmˌtʃeɪn dʒər / (n) – something that greatly affects an existing situation or activity
    Example:

    The company’s new marketing strategy was a game-changer and greatly improved its sales.


  5. vast / væst / (adj) – very great in size, amount, or extent
    Example:

    Scientists have yet to discover how vast the universe is.


Article

Read the text below.

The Australian Square Kilometre Array Pathfinder (ASKAP) has mapped around three million distant galaxies with remarkable speed and detail.


The telescope completed its first survey of the sky from the Outback in Western Australia in just 300 hours. According to Larry Marshall, head of Australian science agency Commonwealth Scientific and Industrial Research Organisation (CSIRO), the survey was a breakthrough in unveiling the mysteries of the universe.


The survey’s result is analogous to a Google Map of the universe, where millions of faraway galaxies are shown as star-like marks. The map includes about a million new galaxies that had never been seen before.


Other telescopes would have taken about a decade to map out the same number of galaxies. In addition, compared to other surveys of the sky that require tens of thousands of images to process and combine, the ASKAP only needed about 900 images to create a new atlas of the sky.


Because of its superior capabilities, astronomer David McConnell described the ASKAP as a game-changer in astronomy. The telescope is equipped with CSIRO-designed receivers that enable it to have a vast field of view and capture images of the sky in higher resolution compared to other telescopes. Its custom-built software is also capable of quickly processing the large amounts of data it generates. McConnell said the telescope is more sensitive, capturing a larger number of objects than ever before.


Scientists at CSIRO expect to conduct more surveys of the sky and discover millions more galaxies in the future.  They are also hopeful that the telescope will allow them to observe changes in the sky and gain a better understanding of the life cycle of stars and the evolution of black holes and galaxies.


Viewpoint Discussion

Enjoy a discussion with your tutor.

Discussion A

• Given the chance, would you like to see the map of the sky created using the ASKAP? Why or why not?
• Do you think the new map of the night sky would make people more interested in astronomy? Why or why not?

Discussion B

• Do you think your country should give more importance to astronomy? Why or why not?
• What scientific pursuits do you think offer the most benefit to people (e.g. climate studies, AI and robotics)? Discuss.