Above: This artist’s impression shows the dust and gas around the double star system GG Tauri-A. Researchers using ALMA have detected gas in the region between two discs in this binary system. This may allow planets to form in the gravitationally perturbed environment of the binary. Half of Sun-like stars are born in binary systems, meaning that these findings will have major consequences for the hunt for exoplanets. Credit: ESO/L. Calçada
The most recent issue of Free Astronomy Magazine (September-October 2021) is available for your reading and downloading pleasure at www.astropublishing.com.
This issue features our fearless leader Michele Ferrara providing all of the original content (as I prepared for and adjusted to fatherhood x 2) among the selection of articles spanning the range from frozen snow balls in our own solar system to the evolution of the whole universe.
Browser-readable version: www.astropublishing.com/5FAM2021/
Jump to the PDF download (14.7 MB): September-October 2021
Above: Featured background from the article "A supernova or Sagittarius – which should we thank?" A graphic reconstruction of our galaxy, made on the basis of NASA images, by Nick Risinger (and available in various sizes and formats from commons.wikimedia.org).
The most recent issue of Free Astronomy Magazine (July-August 2020) is available for your reading and downloading pleasure at www.astropublishing.com (click the link to go directly to the issue).
July-August 2020 includes a selected survey of astronomical content of local and cosmological interest from NASA/ESA, ESO, ALMA, as well as three feature articles from our fearless leader/editor Michele Ferrara. The feature articles in this issue discuss:
- "All the planets of Proxima Centauri" – the science for this article was quite literally being published as the article itself was being put together, about as fast a processing of journal-article-to-magazine as one can do while putting others together.
- "A supernova or Sagittarius – which should we thank?" – I've mentioned in many lectures that our own Sun is either the second or third stellar inhabitant in our vicinity, with a local supernova sparking the formation of it and our Solar System way back when. Recent studies indicate that other events 5-ish billion years ago might have instigated the events that lead to "us."
- "The principle of mediocrity and the habitability of galaxies" – lump this use of the word "mediocrity" with the scientific use of the word "theory," please. It is a joy to know that fundamental debates are being had in the astronomy and astrophysics literature and that there remains plenty, plenty yet to know for those pondering their futures in STEM.
For those wanting a quick look at what the issue has to offer, the Table of Contents is reproduced below.
The web browser-readable version: www.astropublishing.com/4FAM2020/
Jump right to the PDF download (15 MB): July-August 2020