What are the best free astronomy newsletters for following discoveries and mission updates without hype?

Here are some of the best free astronomy newsletters for staying on top of real discoveries, mission updates, and research news without too much hype:

Best overall picks

1. Astrobites

• Best for: New research papers explained clearly
• Why it’s good: Written by grad students and early-career astronomers, it summarizes recent astronomy papers in plain language and usually avoids sensationalism.
• Format: Short, regular articles and email updates
• Website: https://astrobites.org

2. AAS Nova

• Best for: Carefully curated astronomy research highlights
• Why it’s good: Run by the American Astronomical Society. It covers notable new results from astronomy journals with a fairly restrained tone.
• Format: Daily/near-daily short posts and newsletter
• Website: https://aasnova.org

3. NASA “Daily or Weekly News” subscriptions

• Best for: Mission updates and official discovery announcements
• Why it’s good: Direct from NASA, so you get primary-source updates on missions, images, and research milestones.
• Format: Email subscriptions by topic
• Website: https://www.nasa.gov/subscribe/

4. ESO News / Newsletter

• Best for: Ground-based astronomy and observatory results
• Why it’s good: The European Southern Observatory provides high-quality updates on telescope discoveries and instrument/missions news.
• Format: Email newsletter and news releases
• Website: https://www.eso.org/public/

5. The Planetary Society Newsletter

• Best for: Solar system missions, spacecraft, and exploration policy
• Why it’s good: Generally informative and less clickbaity than mainstream science media.
• Format: Free email newsletter
• Website: https://www.planetary.org

Also worth following

6. SETI Institute Newsletter

• Best for: Research, astrobiology, and space science updates
• Why it’s good: Focuses on actual science and mission developments.
• Website: https://www.seti.org

7. Universe Today

• Best for: Broad astronomy news, if you’re okay with a slightly more popular tone
• Why it’s good: More accessible and timely, though sometimes a bit more headline-driven than the ones above.
• Website: https://www.universetoday.com

8. Sky & Telescope newsletters

• Best for: A mix of observing, astronomy news, and event alerts
• Why it’s good: More enthusiast-oriented, usually grounded, but not as research-focused as AAS Nova or Astrobites.
• Website: https://skyandtelescope.org

If you want the least hype, I’d prioritize:

1. AAS Nova
2. Astrobites
3. NASA mission newsletters
4. ESO News
5. Planetary Society

Quick tip

If you want a very low-noise setup, subscribe to:

• one research newsletter: AAS Nova or Astrobites
• one mission/news source: NASA or ESO
• one solar system/exploration source: Planetary Society

That gives you broad coverage without drowning in repeats or clickbait.

If you want, I can also give you:

• a short list of the top 3
• a list focused only on exoplanets / cosmology / solar system
• or a “best sources by email frequency” version.