Hacker News
- Chemical Cartography Reveals the Milky Way’s Spiral Arms https://cns.utexas.edu/news/research/chemical-cartography-reveals-milky-ways-spiral-arms 2 comments
- Two Armed Spiral Milky Way http://apod.nasa.gov/apod/ap080606.html 4 comments space
- Our Milky Way Galaxy has 4 spiral arms, new study confirms http://www.sci-news.com/astronomy/science-milky-way-galaxy-four-spiral-arms-01649.html 784 comments science
- Astronomers Find a 'Break' in One of the Milky Way's Spiral Arms. https://www.nasa.gov/feature/jpl/astronomers-find-a-break-in-one-of-the-milky-way-s-spiral-arms 8 comments space
- When I'm looking up at the Milky Way Galaxy, what am I actually looking at? One of its spiral arms? The nucleus? http://www.astro.wisc.edu/sirtf/skymt_payne_big.jpg 21 comments askscience
- How many intelligent alien civilizations are out there among the hundreds of billions of stars in the spiral arms of the Milky Way? According to a new calculation, the answer is 36. https://www.livescience.com/how-many-alien-civilizations-exist.html 48 comments worldnews
- New evidence provided by the Spitzer telescope suggests that the Milky Way may actually be a two-armed spiral galaxy [pic] http://antwrp.gsfc.nasa.gov/apod/image/0806/mwspitzer_lab_2048.jpg 3 comments science
- Spiral Arms Did Not Cause Climate Change on Earth-- A new map of the Milky Way galaxy proves that the Sun's motion through the spiral arms could not have caused a well known climate change cycle http://www.technologyreview.com/blog/arxiv/23763/ 3 comments science
- Movement of the solar system through the Milky Way’s galactic spiral arms helped form Earth’s first continents. Regions of space with dense interstellar clouds may send more high-energy comets crashing to the surface of the Earth, seeding enhanced production of continental crust. https://www.geosociety.org/GSA/News/pr/2022/22-44.aspx 3 comments science
- An international team of astronomers has used data from the Gaia space mission to create a new map of the Milky Way’s outer disc. Intriguingly, newly found structures include evidence for fossil spiral arms. https://ras.ac.uk/news-and-press/news/gaia-finds-fossil-spiral-arms-milky-way 3 comments science
- For the first time ever, astronomers have pinpointed the location of a luminous light source on the opposite side of the Milky Way Galaxy, far beyond the galactic center. The source is located in a distant spiral arm, one of the large tentacles of gas that swirl around the middle of our galaxy. https://www.theverge.com/2017/10/12/16459828/milky-way-galaxy-spiral-arms-parallax-star-forming-regions 14 comments worldnews
- New research has found evidence that Earth’s early continents resulted from being hit by comets as our Solar System passed into and out of the spiral arms of the Milky Way Galaxy, turning traditional thinking about our planet’s formation on its head. https://news.curtin.edu.au/media-releases/comet-impacts-formed-continents-when-solar-system-entered-galactic-arms/ 7 comments science
![New evidence provided by the Spitzer telescope suggests that the Milky Way may actually be a two-armed spiral galaxy [pic] http://antwrp.gsfc.nasa.gov/apod/image/0806/mwspitzer_lab_2048.jpg](http://antwrp.gsfc.nasa.gov/apod/image/0806/mwspitzer_lab_2048.jpg){kind=link}