Billion Stars Shine in New Photo of Our Milky Way Galaxy

An international team of astronomers snapped a new photo of our Milky Way galaxy.

The new picture, which was released on March 28, combines infrared images of the Milky Way taken during sky surveys by two different instruments, the UK Infrared Telescope in Hawaii and the VISTA telescope in Chile. As said scientists the photo is part of a 10-year project that is gathering mountains of data to help guide future research. According to Nick Cross, of the University of Edinburgh, this incredible image gives a new perspective of our galaxy, and illustrates the far-reaching discoveries they can make from large sky surveys. Having data processed, archived and published by dedicated teams leaves other scientists free to concentrate on using the data, and is a very cost-effective way to do astronomy. The photo shows the plane of the Milky Way, which is often described as looking like two fried eggs back to back, with a flat disk in the middle. Earth is close to this disk’s edge, the new image shows a cross-section through the disk as seen from our planet’s perspective. Because the image was taken in infrared light, it cuts through much of the Milky Way’s obscuring dust, allowing astronomers to observe details of the galactic center. Large-scale structures are also visible, such as large clouds of dust and gas where stars are forming at rapid rates. While the new photo captures an unprecedented number of stars, it’s far from a complete stellar picture of the Milky Way. Astronomers think our galaxy contains at least 100 billion stars, and perhaps as many as 400 billion.