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24.01.2022 When there are thousands of galaxies in your image, how do you remove them to see the faint signal from the baby Universe behind? In August's Monthly Media, Dr Jack Line from our Curtin University node explores ways it could be done, along with the problems of each method! It's actually a pretty old question - is QUANTITY or QUALITY better? Here's what we mean by both in this scenario:... QUANTITY - the removal of many galaxies from the image, with the down side that not all galaxies are removed properly and you can end up with weird looking gaps in your image. QUALITY - good removal of the brightest galaxies but lots of little ones left over, because the computer can't handle that amount of detail over so many thousands and thousands of sources. The final results are yet to be determined, but what do you think? Is it going to be QUANTITY or QUALITY that will have the biggest impact? You can read the full article here https://astro3d.org.au/quantity-or-quality/

21.01.2022 Astro in the Home #8: Use slinkies to understand how Doppler shifts of light occur in space! Today's video is hosted by the University of Melbourne's Alex Cameron. #ScienceWeek Watch here: https://bit.ly/2PTAIUs

21.01.2022 Astro in the Home #2: Learn how massive objects in space can bend light into strange shapes! Today's video is hosted by Dr Colin Jacobs from Swinburne University of Technology. #ScienceWeek Watch here: https://bit.ly/3kDSp93

21.01.2022 Two new coins have been released by the Royal Australian Mint to celebrate the astronomical knowledge and traditions of Aboriginal and Torres Strait Islander people. They feature artworks from Wiradjuri (NSW) and Yamaji (WA) artists that represent two of the most famous features in Aboriginal astronomy: the great Emu in the Sky and the Seven Sisters. ASTRO 3D member A/Prof Duane Hamacher explains the project that has been three years in the making, with the third and final coin in the series due to be released in mid-2021:

20.01.2022 Astro in the Home #12: Find out about different types of galaxies by making cupcakes! Having recently submitted her PhD thesis at the University of Melbourne, Maddie Marshall will now take you through the different galaxy shapes and colours we see, while making a delicious treat. Watch here: https://bit.ly/2Ug9fP8

19.01.2022 Theories on how the Milky Way formed are set to be rewritten following discoveries about the behaviour of some of its oldest stars. An investigation into the orbits of the Galaxy’s metal-poor stars assumed to be among the most ancient in existence has found that some of them travel in previously unpredicted patterns. We’ve studied 475 of them and found that about 11 per cent orbit in the almost flat plane that is the Milky Way’s disc. They follow an almost circular path ... very much like the Sun. That was unexpected, so astronomers are going to have to rethink some of our basic ideas," says Gary Da Costa, from the ANU node of ASTRO 3D. Previous studies had shown that metal-poor stars were almost exclusively confined to the Galaxy’s halo and bulge, but this study revealed a significant number orbiting the disk itself, which will fundamentally change our understanding of the evolution of the Milky Way galaxy. Read more at our website: https://astro3d.org.au/orbits-of-ancient-stars-prompt-reth/

19.01.2022 Normally, ASTRO 3D researchers gather in late May/early June for our annual Science Meeting, to update the Centre on science progress and share exciting new discoveries. We all know that this year is anything but "normal"! So, instead, we had our first "Virtual Science Meeting" - a one-day online extravaganza of science talks using Zoom Webinars. The day went extremely smoothly considering we had 27 speakers, 4 session chairs and 2 co-hosts! The Q&A function was well utilise...d - especially by our female members - and the scientific discussion is continuing online on our Slack workspace. We learnt a lot about hosting an online/virtual conference and even when/if things go back to "normal" and we can have real-life gatherings again, we will continue to implement some form of virtual attendance, to reduce our carbon footprint and allow equitable access to our science!

18.01.2022 How do stars destroy lithium? Was a drastic change in the shape of the Milky Way caused by the sudden arrival of millions of stellar stowaways? These are just a couple of the astronomical questions likely to be answered following the release today of ‘GALAH DR3’, the largest set of stellar chemical data ever compiled. The GALAH survey is a massive spectroscopic survey of stars in the Milky Way. GALAH DR3 uses data from 678,423 individual spectra of 588,571 stars. This needed... 387 nights with 2DF and the HERMES spectrograph on the Anglo-Australian Telescope at Siding Spring Observatory. The Big numbers: Results for 588,571 stars 387 nights of telescope time Up to 30 elemental abundance per star Coming soon: 392 GB of reduced spectra Read more at https://bit.ly/38fIMt7 and if you are really keen, you can get your hands on the DR3 data - GALAH DR3 data and its documentation is on Data Central (NB: We highly recommend reading the documentation which provides useful details on how the data was acquired, reduced, analyzed, and caveats of its use). https://docs.datacentral.org.au/galah/dr3/overview/

18.01.2022 We're ending National Science Week on a bright note, with Astro in the Home #9: Create coloured flames to see how a galaxy's colour is affected by its metallicity! This video comes to you from Pipit Triani from Swinburne University of Technology. #ScienceWeek... Watch here: https://bit.ly/323aDYO

18.01.2022 ASTRO 3D are proud media sponsors of #WorldRecordLight to be held this Sunday 21 June. Take part in this global light pollution mapping event and help break a world record for 'the largest online sustainability lesson in a 24 hour period'! Follow this link to register - https://worldrecordlight.thinkific.com/ - and use #WorldRecordLight to get the word out!

17.01.2022 Astro in the Home #3: Use a microwave and a chocolate bar to measure the speed of light! Chandra Murugeshan from Swinburne University of Technology will show you how. #ScienceWeek Watch here: https://bit.ly/2E12GLD

16.01.2022 Astro in the Home #5: Create an origami star and discover diffraction spikes! Adam Batten from Swinburne University of Technology will make you think about the connection between telescopes and our own eyes. #ScienceWeek Watch here: https://bit.ly/2XWC59s

15.01.2022 Astro in the Home #10: Try to grasp the relative size of planets by using playdough! Garima Chauhan and Ruby Wright from the University of Western Australia explain it all. Watch here: https://bit.ly/3h9yxbw

15.01.2022 A reminder for this Sunday, 21 June 2020 after dark! @DarkSkyAlliance is asking all Australians to step outside on the longest, darkest night of the year to help create a map of Australia's darkest skies, and learn about light pollution and its effect on people, animals and ASTRONOMY. Sign up at worldrecordlight.thinkific.com. Read more at https://astro3d.org.au/can-you-see-the-stars-dark-sky-surv/

14.01.2022 ASTRO 3D researchers Chiaki Kobayashi at University of Hertfordshire and Amanda Karakas at Monash University have produced a new-look Periodic Table, showing the origin of elements created in stars (stellar origins) in naturally occurring elements from carbon to uranium. This updated Table comes from the analysis of spectra using simulations which reveals that the role of neutron stars may have been considerably overestimated and that another stellar element creation process altogether is responsible for making most of the heavy elements, including gold. Read more on our website: https://astro3d.org.au/elements-of-surprise-neutron-stars-/

14.01.2022 Astro in the Home #6: Make some yummy ice cream and learn about quasars! Today's video comes from Keven Ren from the University of Melbourne. #ScienceWeek Watch here: https://bit.ly/2Q2gTdG

13.01.2022 Astro in the Home #4: Make a spectroscope and a colour wheel to explore how light and colour behave! From Swinburne University of Technology, Associate Professor Emma Ryan-Weber will take you through spectroscopy. #ScienceWeek Watch here: https://bit.ly/33YvU8U

11.01.2022 We have a new YouTube series being launched during National Science Week! This series is for everyone - whether you're a parent looking for new ways to entertain your children, a teacher wanting new science activities, or someone who is just curious about the universe. We'll be posting videos regularly, but to start us off, we'll post a video every day from the 15th to the 23rd of August. Check out our YouTube channel here: https://bit.ly/2XdkKZr

11.01.2022 Have you every noticed how beautiful space can be? Even the Universe in radio waves, which the human eye cannot see, is beautiful, it just takes a fey fancy techniques to bring it out. This September’s Monthly Media is from A/Prof Cathryn Trott and showcases the beauty to be found in mapping the simplest element across the Universe: Hydrogen. ... While these images encode the full evolution of the Universe over 350 million years during its infancy, we’re still transported to a rainy day on the beach when looking at these plots. Read more at https://astro3d.org.au/history-of-the-universe

07.01.2022 Looking forward to sharing the work ASTRO 3D 'heroes' do

06.01.2022 What happened to the ionosphere 7 years ago? may not be a question you expected to be asked today, but for our astronomers studying the Epoch of Reionisation (when the first stars and galaxies formed) it’s an important question. Why? Because space weather might be affecting our ability to observe the first stars and galaxies that formed in the Universe! Check out our latest Monthly Media from Dr Chris Jordan for more details; astro3d.org.au/ionosphere-2013

02.01.2022 We're kicking off our Astro in the Home series with some solar system modelling! Remember, we'll be posting a new video every day during National Science Week. Today, you can make a model of the solar system and learn about the Cosmic Ladder, with your host Emma Barnett from Swinburne University of Technology. #ScienceWeek... Watch here: https://bit.ly/3kI4NVl

02.01.2022 ‘Epoch of Bubbles’ outreach activity now on video! Outreach Officer Teresa Slaven-Blair (ICRAR), who developed the activity, created the ‘How to’ video whilst in lock down. EoB is a an engaging activity for primary students. It demonstrates a fun analogy of how reionisation occurred in the early Universe. Try it at home! See more at https://astronomy.curtin.edu.au//epoch-of-bubbles-activity/

01.01.2022 Astro in the Home #7: Use elastic bands and balloons to explain the expanding universe! Dr Rob Bassett from Swinburne University of Technology will show you how. #ScienceWeek Watch here: https://bit.ly/31OZJFZ