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FAS Astronomers Blog

Click on image above for more details (Image Credits: NASA, JHAPL/Alex Parker, Event Horizon Telescope Collaboration, ESA and the Planck Collaboration).

The FAS Astronomers Blog is a series of discussions about science, astronomy, the universe, and more.
It replaced the Young Astronomers Blog and Young Astronomers Newsletter.

Editors
Bruce Gavett (2020 – present) Young Astronomers Blog / FAS Astronomers Blog
Bob Patsiga (Dec 2015 – 2019) Young Astronomers Newsletter
Art Gormely (1993 – Nov 2015) Young Astronomers Newsletter

Archive of past blogs and newsletters

Most Recent Blogs

  • Mapping the World

    Young Astronomers Blog, Volume 29, Number 4. The world is round (actually it is an ellipsoid, but close enough).  Maps are flat. This difference doesn’t…

    March 21, 2021
  • The Moon

    Young Astronomers Blog, Volume 29, Number 3. On many nights when you look up into the night sky you can see a bright object known…

    February 27, 2021
  • Exploring Mars, Past and Present

    Young Astronomers Blog, Volume 29, Number 2. Back in the 19th century there was a focus on the planet Mars. Italian astronomer Giovanni Schiaparelli studied…

    February 8, 2021
  • The Search for Extraterrestrial Intelligence (SETI)

    Young Astronomers Blog, Volume 29, Number 1. The universe is a big place. There might be some 200 billion to over a trillion galaxies in…

    January 22, 2021
  • Year End Summary 2020

    Young Astronomers Blog, Volume 28, Year End. Happy New Year! I hope you enjoyed the Young Astronomers Blogs for 2020. Just in case you missed…

    January 9, 2021
  • Saturn (and a conjunction with Jupiter)

    Young Astronomers Blog, Volume 28, Number 24. Every so often, two (or more) planets appear close to each other in the night sky. We call…

    December 15, 2020
  • Exoplanets

    Young Astronomers Blog, Volume 28, Number 23. Prior to 1992, the number of known planets was small; there were nine. Yes, nine. It was easy…

    November 28, 2020
  • Black Holes

    Young Astronomers Blog, Volume 28, Number 22. The 2020 Nobel prize in physics was recently awarded to three scientists, Roger Penrose, Reinhard Genzel, and Andrea…

    November 14, 2020
  • Asteroids

    Young Astronomers Blog, Volume 28, Number 21. When we think of our solar system, we typically think of our Sun, eight planets, and five dwarf…

    October 31, 2020
  • Water, Phosphine, and the possibility of life elsewhere in the Solar System

    Young Astronomers Blog, Volume 28, Number 20. Although many have dreamed about life on other worlds, so far, life has only been found on the…

    October 16, 2020
  • Rocks and Minerals

    Young Astronomers Blog, Volume 28, Number 19. Walk outside and look down. You might see a few rocks. A casual glance might reveal that the…

    September 23, 2020
  • Jupiter

    Young Astronomers Blog, Volume 28, Number 18. If you look up in the night sky over the next few months you might see what looks…

    September 5, 2020
←Newer Blogs
1 … 5 6 7 8 9 … 16
Older Blogs→

Index of Previous Blogs by Topic

Observing the Night Sky

  • The Night Sky
  • Observing the Stars
  • Observing the Moon and Planets
  • The Daytime Moon
  • Auroras
  • Telescopes
  • Planetary Opposition and Conjunction
  • A History of the Constellations
  • Astrology to Astronomy
  • How to Pronounce It

The Earth

  • Why is the Sky Blue?
  • Meteors, Meteoroids, and Meteorites
  • You Don’t Need to Duck
  • Rocks and Minerals
  • Mapping the World
  • Earth Day 2020
  • Leap Year, the Solstice, and Seasons

An Overview of The Universe

  • The Visible Universe
  • The Dark Universe
  • The Expanding Universe
  • The Microscopic Universe
  • The Multiverse

Discovering The Universe

  • The Copernican Revolution
  • Owen Gingerich
  • The Great Debate
  • Cosmic Microwave Background
  • The History of the Universe
  • Geometry, Omega, and the Universe

A Few Odds and Ends

  • DNA and RNA
  • Viruses and Vaccines
  • The Making Of The Atomic Bomb

The Planets

  • Mercury
  • Venus
  • Mars, The Red Planet
    • Journey to a Red Planet
    • Exploring Mars, Past and Present
  • Jupiter
  • Saturn
    • The Rings of Saturn
    • Titan
  • The Ice Giants (Uranus and Neptune)
  • Uranus
    • What’s in the name Uranus?
  • Neptune
    • The Discovery of Neptune

The Earth’s Past

  • A History of the Earth (Geologic Time)
  • The Age of the Earth (The Search Begins)
  • The Age of the Earth (Finally The Answer)
  • The Rise of the Vertebrates
  • An Introduction to Dinosaurs
  • The Classification of Dinosaurs
  • Meet The Dinosaurs
  • The Case of the Velociraptor
  • The Case of the Brontosaurus
  • Asteroid 1 Dinosaurs 0

The Building Blocks of The Universe

  • Atoms and Molecules
  • The Standard Model of Particle Physics
  • Gravity
  • The Higgs
  • Dark Matter
  • Dark Energy
  • Black Holes
  • Gravitational Waves

Spaceflight

  • First Humans in Space
  • Project Mercury
  • Project Gemini
  • Project Apollo
  • Houston, we’ve had a problem
  • Going Commercial
  • Return to the Moon with Artemis
  • Return to the Moon with Artemis, Part II

The Solar System

  • The Solar System
  • The Sun
  • The Moon
  • The Earth’s 2nd Moon?
  • Moons of the Solar System
    • Underground Oceans
    • Water, Phosphine, and the possibility of life elsewhere in the Solar System
  • Asteroids
  • Comets
  • Pluto
    • Discovering Pluto
    • Pluto and the Outer Solar System
    • Reclassifying Pluto
  • Exoplanets

Stars

  • Stars
  • Betelgeuse is dimming
  • Cosmic Distances, Stellar Brightness, and The Hubble Constant
  • The Harvard Computers

Deep-Sky Objects

  • The Deep Sky
  • Galaxies
  • Globular Clusters (Coming soon)

Observing The Universe

  • The Great Observatories
  • The James Webb Space Telescope
  • Sagittarius A* and the Event Horizon Telescope
  • Vera Rubin (The Astronomer & An Observatory)
  • A Map of the Universe

Are we Alone?

  • The Search for Extraterrestrial Intelligence
  • Unidentified Flying Objects (The Beginning)

Mathematics and Numbers

  • Happy Pi Day and The Hierarchy of Numbers

FAS Astronomers Blogs and Young Astronomers Blogs – Copyright © 2020-2026 Forsyth Astronomical Society/Bruce Gavett – All Rights Reserved.

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