Free Astronomy Magazine –March-April 2022 Issue Available For Reading And Download

Above: Will an 18-segment honeycomb arrangement ever mean anything different? Optics, strategically-placed logo, and technical staff during JWST testing and assembly . Credit: NASA/Chris Gunn.

The most recent issue of Free Astronomy Magazine (March-April 2022) is available for your reading and downloading pleasure at

Delighted to have as my first Solar System Ambassador article for the year the successful launch and delivery of the James Webb Space Telescope. With a hard cut-off for translation and publishing of February 15th for this issue, it was impossible to include the several significant updates to have occurred since the final edits went out for review. Just like the Perseverance article! Just like the DAVINCI+/VERITAS article! Something about trying to cover cutting-edge space science in a bi-monthly magazine translated into four languages…

I've binoculars that looked at least this bad before collimation. From NASA: "This image mosaic was created by pointing the telescope at a bright, isolated star in the constellation Ursa Major known as HD 84406. This star was chosen specifically because it is easily identifiable and not crowded by other stars of similar brightness, which helps to reduce background confusion. Each dot within the mosaic is labeled by the corresponding primary mirror segment that captured it. These initial results closely match expectations and simulations. Credit: NASA"

Additional original content includes our fearless editor's extensive review of the detection and additional searching for Proxima b (with reports of the confirmation of Proxima d also coming just as this issue was version-locked for publication), as well as François Blateyron's article about sundials and the Shadows app – which I'd never before heard of before but am now inclined to try to expand the utility of the backyard garden.

Browser-readable version:

Jump to the PDF download (27.3 MB): March-April 2022