The best Astronomy newsletters

Long-form essays on history and astronomy, pairing archival detective work with clear explanation of scientific and historical puzzles, such as a disputed 1680 star observation and solar neutrino experiments. Readers get careful, well-sourced narratives that show how evidence is weighed and where uncertainty remains.

A weekly-style space and physics newsletter that explains big science projects and ideas, such as the Thirty Meter Telescope's siting troubles, the IceCube neutrino observatory, and debates over Euclid's historical existence. Readers get accessible, narrative explanations of telescopes, particle physics and the history of science.

The Astroholic is a personal science blog by astrophysicist Dr Alfredo Carpineti explaining astronomy concepts like eclipses, planetary alignments, supernovae and orbital mechanics. Readers get accessible, witty explanations of how celestial events work, often tied to his own observations.

A beginner-oriented astrophotography newsletter covering camera technology such as mono versus one-shot-colour sensors, deep-sky and star catalogs for plate solving, and the origins of star names. Issues mix technical explanation with historical background and practical observing guidance.

A personal blog by a software engineer covering astrophotography, reverse engineering, and high-performance computer vision and automation systems. Readers get hands-on accounts of amateur astronomy techniques and detailed write-ups of optimization work on the author's Atheon and Mobius projects.

Philip Plait's Bad Astronomy Newsletter covers recent astronomy and space science news, explaining phenomena such as novae, comets and galaxy collisions in an accessible way. Most of each issue is behind a Premium paywall, so the free excerpts show only the opening paragraphs.

Planetocracy is a personal newsletter by a UK-based space commentator who argues for a new British space industrial policy aimed at colonisation, not just science missions. Issues mix policy advocacy, speculative essays on the Fermi paradox and monthly analysis of launch mass-to-orbit data for SpaceX and other providers.

Space Weather Africa publishes intelligence on how solar activity and geomagnetic storms affect aviation, satellites and infrastructure, with an African focus. Each issue pairs a current event or case study with explanation of the underlying physics and practical implications for the region.

The Computus Engine mixes personal travel and history writing, such as visits to the Antikythera Mechanism and the Royal Greenwich Observatory, with technical explanations of the JavaScript Temporal API. Readers get a blend of history of science and practical context on why and when the new date and time API matters.

A personal reflective newsletter by Alp about growing up with uncertainty, family tension, and a search for belonging in Anatolia. Recent issues also cover northern lights hunting, astronomy photography, triathlon, and gratitude rituals as ways of coping.

This newsletter from DSP Remote, a remote telescope hosting service near Animas, New Mexico, mixes practical astrophotography tips with heavy promotion of its own pier pricing, bunkhouse and services. Readers get some useful how-to content on imaging from light-polluted skies, running student observing programs and shipping gear, but each issue frames the advice around selling hosting.

DEEPSPACE shares astronomy image features of deep-sky objects such as nebulae and galaxies, each with a short explanation and telescope details. The excerpts are mostly captioned image posts with brief descriptive text and membership prompts.

Earthen shares news from the Regenerative Ecobrick Movement, including updates to the EarthCal app and the GoBrik platform. Issues cover astronomical events like eclipses, new app features, and calls for ecobrick project submissions and course announcements.

A children's astronomy and science newsletter from the ELI character, featuring home telescope observation activities like finding the Orion Nebula and viewing sunspots. Each issue offers simple, kid-friendly explanations and hands-on projects such as night safaris and 3D-printable models.

This newsletter offers summaries of Isaac Asimov's books and essays, covering works such as Puzzles of the Black Widowers, Piloted Space Flights and Astronomy Today. It gives readers an overview of each book's themes and ideas, mainly as a guide to Asimov's non-fiction and fiction.

Short explainer issues cover science topics such as black holes, waves, and why the night sky appears still. The writing is general and introductory, with little reporting or original insight.

A listicle-style newsletter of short 'amazing facts' articles on single subjects such as guinea pigs, supernovae and tears, each opening with a numbered title and a list of trivia. It delivers quick, general-interest science and animal facts aimed at casual readers looking for entertainment.