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February 25, 2021

Studying Galaxies with the SAMI Survey

Dr Matt Owers led a study of over 13, 000 galaxies to further our understanding of the construct of the universe. The findings led to some incredible discoveries that have already been published, but now the complete survey has been released.

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The Slowest Rotating ‘Cosmic Lighthouse’ Yet Discovered

Distant neutron stars typically spin a full 360 degrees within seconds. However, a new type of ‘radio transient object’ – so called as they are detected in radio waves – has emerged that rotate much more slowly. In the time it takes this cosmic lighthouse to rotate you could watch Interstellar twice before it completes a full spin.

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Mapping Ripples In A Cosmic Ocean

An international study led by Australian astronomers has created the most detailed maps of gravitational waves across the universe to date in three new research papers. The study also produced the largest ever galactic-scale gravitational wave detector and found further evidence of a “background” of these invisible yet incredibly fast ripples in space that can help unlock some major mysteries of the universe.

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How Saturn’s Rings Might Be Keeping A Youthful Appearance

Even though Saturn’s rings appear clean and young, they may be as old as the planet itself according to international researchers. It was previously thought that impacts with small rocky debris travelling through space – called micrometeoroids – would dirty and darken the rings over time, but in 2004 the Cassini spacecraft revealed the rings to be clean and bright suggesting that they are not very old.

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