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 Potential biosignature found in Mars rock
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Stargazing Solar Activity and Space Weather Update thread
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B 3I/ATLAS, Interstellar Comet
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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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The James Webb Space Telescope
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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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B Venus and Jupiter Conjunction
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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 Interstellar asteroids
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I Big bang balloon?
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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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Stargazing Castor, Pollux, Mars and the Moon
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B Gaia Telescope Shut Down
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I Why Do Nebulae only have Hydrogen, Oxygen and Sulfur?
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B Star like object travels in a zigzagging pattern relative to other stars
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I Confused about Stonyhurst Grid and jHelioViewer
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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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I How can the Universe be infinite?
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I Speediest Exoplanet System
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B Black hole equivalence
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B CNO Cycle
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I Fastest space travel
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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 A new planet?
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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 Mars Occultation
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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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A Spectral Data Availibility
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B Can nature do this in the night sky?
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Stargazing Is this a meteorite?
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I Does light bend around black holes?
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B Predicting frequency of Earthlike planets and systems
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B Neutron star 4U 1820-30 spins at 716 revolutions per second
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I New Developments In The Search For Planet X
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I How feasible is home radio astronomy?
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B Looking for Axions in Neutron Stars
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Astronomy

Astronomy is the scientific study of celestial objects and phenomena beyond Earth's atmosphere. It encompasses the observation and analysis of stars, planets, galaxies, and other celestial bodies, as well as the broader exploration of the universe's origins, structure, and evolution.

Astronomers employ a variety of tools, including telescopes, satellites, and advanced instrumentation, to gather data and uncover the mysteries of the cosmos. The field addresses questions about the nature of dark matter, the expansion of the universe, and the potential for extraterrestrial life.

Astronomy not only contributes to our understanding of the cosmos but also inspires wonder and curiosity about the vastness and complexity of the universe we inhabit.

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