Astronomy and Astrophysics Forum

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Join in expert discussion on the topics of Astronomy and astrophysics. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
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Our Beautiful Universe - Photos and Videos
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Stargazing How Can You Improve Your Amateur Solar Imaging Techniques?
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Insights Planning to buy a first telescope? - Comments
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Astronomy and Cosmology FAQ List
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I Is there anything inside a black hole?
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The James Webb Space Telescope
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B 3I/ATLAS, Interstellar Comet
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I Population 3 star (Pop III) candidate LAP1
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Rock on Mars possibly indicating Life
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Stargazing Solar Activity and Space Weather Update thread
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I Question of accuracy of galactic collision simulations
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B Help with the protocol for accurately recording an orbit for the IAU
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A Project Progress Report and possible Radio Astronomy Technique?
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B Star like object travels in a zigzagging pattern relative to other stars
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I Visible light Over Large Distances
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I How feasible is home radio astronomy?
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Stargazing Castor, Pollux, Mars and the Moon
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Stargazing Partial Solar Eclipse, From Southern New Zealand
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B Asteroid 2024 YR4 has a 1% risk of a multi-megaton impact in 2032 (now ruled out)
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B Venus and Jupiter Conjunction
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I Potential biosignature found in Mars rock
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Does it make sense to build new radio telescopes?
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A Could gamma-ray bursts have an intragalactic origin?
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Stargazing Orange lines on Aladin lite
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A Why do both poles of a radio pulsar emit radio waves?
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I Could fast radio bursts be alien radar signals?
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B Looking for a list of astronomy collaborations
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B Does Time Pass at Different Rates on Other Planets?
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A Self-gravitating systems and MOND
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I How to explain the strange pulsar in the Crab Nebula?
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I Why are continuously emitting radio pulsars not detected?
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I Time interval terminology
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A Charge to mass ratio of a photon
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B Simulating the Universe's First Stars - The Population III Stars
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B Feasibility of Sending a Radio Signal Detectable from a Neighboring Star
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B How Can Interstellar Asteroids Be Analyzed Using Orbital Mechanics Equations?
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I How Does the Balloon Analogy Explain the Expansion of the Universe?
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I Sun gravitational lensing forces
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B Where can I find easy-to-understand GAIA exoplanet data?
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I Large Synoptic Survey Telescope -> Vera C. Rubin Observatory
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B Sun's peak wavelengths and chlorophyll's green colour
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A Understanding the Gravitational Redshift Caused by a Black Hole
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B How well do we understand the formation of population III stars?
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I Questions on Expansion of the Universe and Newtonian Physics
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B Strange spiral structure in Oort Cloud, outer Solar System
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I How 'Messy' are Fusion Reaction Chains in Stars?
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B Strongest hints yet of biological activity outside the solar system
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I Help with my Polar Aligning Star Tracker please
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I IRAF 2025?
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I If We Crack the Neutron Star Equation of State, How Will It Change Our Daily Lives?
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B Colliding Gas Cloud to form a Star
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I Gravitational wave effects on different materials
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Deep sky picture
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B What has space exploration done for me as an individual?
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Stargazing Small angle lunar haloes
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A Did scientists just find that the Universe has finite angular momentum?
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B Confusion regarding black hole spin
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I Mass Loss on an HR diagram
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I Magnitude where the Pale Dot is blue?
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A Classifying Milky Way planets by what they´re bound to and originate from
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I Galaxy GNZ11 33 billion light-years away
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B First ever recorded planetary engulfment
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B Does Sun cross planes of all binary stars?
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Stargazing Q: Meridian flip
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B What is dark matter?
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B Is the Gaia Telescope's Shutdown Impacting Our Ability to Map the Milky Way?
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I Why Do Nebulae only have Hydrogen, Oxygen and Sulfur?
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I Confused about Stonyhurst Grid and jHelioViewer
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I How can the Universe be infinite?
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I Speediest Exoplanet System
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B How Can Black Holes Vary in Size if They Are Singularities?
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B CNO Cycle
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I Can Staging Rockets Achieve Faster-Than-Light Travel Despite Relativity?
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Measuring the Solar System and Universe
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B Possible explanations for meteor like observations?
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I The initial density of an object and its compression into a black hole
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B I Need Help on Understanding Some Basic Astrophysics / Sand Clock Universe
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I Would discovery of a galaxy without dark matter disprove MOND?
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I Cosmic ray origins
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Stargazing Is There a New Planet Beyond Neptune?
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Stargazing Merger of two black holes (video)
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B Brightness of different layers of the Sun
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A Understanding NOAA and Naval Observatory's Solar Calculations
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B Atmospheric refraction and "rainbow"
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I How big a lunar radio telescope to detect Earth-like signals?
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B Question: Orbital mechanics of a binary star system
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Stargazing Meteorite crash recorded on video in Canada
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B More scope refurbishments or start new?
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Stargazing How Did You Capture the Mars Occultation? Share Your Photos Here!
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I Nature paper on Moon's initial evolution - Tidally driven remelting
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I The Heavier Elements: A Question About Their Abundance
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I Moon phase ruins my Stargazing!
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B Help w/ repairing/refurbishing an equatorial mount
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B Does my theory about black holes make sense ?
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I Expansion of a star to become a red giant
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B Considering a budget observatory
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I How to graph Earth's path?
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I Possibility of multiple planets sharing the same orbit?
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B What If We Could See the Past by Placing a Mirror on the Sun?
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B Popular physics - The Nebra disk
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B Can a thunderstorm affect a satellite in low earth orbit?
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I Is this the correct representation for showing the direction of a star on CMD?
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A Where to find black hole datasets
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A XSPEC Composite Model Partial Flux Calculations
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