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.
Undergrad Why Does Pi Appear in So Many Scientific Equations?
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Graduate The Sun and Hydrogen into Helium Fussion?
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Graduate Can light be affected by other masses in deep space?
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Graduate How to Calculate Intensity in Airy Disk from a Point Source?
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Graduate How to accrete neutral gas after the reionization of the universe?
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Undergrad Do objects really take up space?
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Stargazing How many percent does the kepler telescope investigate of the sky?
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Graduate How Do We Know Gas Contributes to Galactic Gravity?
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Graduate How to calculate perihelion precession
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High School Can Earth sustain much bigger object with an infinite weight?
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Undergrad Unraveling the Mystery of ISM Dust: Origins & Categories
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Graduate Angular Resolution: Best Possible Observing Distance for Stars
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Graduate Do Gravitational Waves Scatter and Increase Entropy?
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Graduate If Betelgeuse Went Supernova Soon
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Undergrad Where do the heavier elements come from, such as those found in planets?
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High School How quickly does a star's supernova become apparent to the naked eye?
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Graduate Short GRB's: Neutron Star Merger Evidence?
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High School Witnessing a Sideways Half Moon: Michigan, USA
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Graduate What might happen if an object struck and replaced Luna
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Undergrad Is the Universe’s Accelerating Expansion Theoretical or Observable?
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Graduate Great Analogy of Holding a Rope Above a BH?
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Graduate Is the mass of a black hole diminishing for a free falling observer ?
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Undergrad A few qustions about Dark Matter from a beginner.
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Graduate What is Magnetic Buoyancy and How Does it Affect Neutron Stars?
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Graduate Neutron star temperature and cooling
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Graduate What is the significance of JD and how is it calculated?
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Undergrad When astronomers speculate the distance of galaxies are they talking about its
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Graduate Best Computer Language for Employment
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High School What is the minimum angular distance from the Sun for Venus to be visible?
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Undergrad Dark Energy: Does It Affect All Space?
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What Should I Include in a 15-Minute Astronomy Presentation for Special Kids?
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Did We Just Witness a Supernova in M95?
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Undergrad Why Does the Analemma Show an Ellipse for Solstices?
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High School Human Eyes See Cosmic Bubbles that Algorithms Miss
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Graduate Astronomical cupolas & thermal equilibrium
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Graduate How Can You Determine the Right Ascension of a Star with a Meridian Circle?
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Graduate Determining Mass Ratio of Double Star Systems with Spectroscopy
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The Cosmic Romance of Binary Stars: How Are They Formed?
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Undergrad Revolutionizing Space Travel: The Potential of Dual Space Elevators
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Undergrad Difference Between Plasma and Radiation
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Undergrad First magnetic phenomenon observed on the Sun
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Flyaround video of Vesta as seen from low orbit by Dawn
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Stargazing Telescope optical path length vs focal length
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Graduate Are We Accelerating Away from Distant Galaxies?
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Undergrad Difference Between Solar proton event and Coronal mass Ejection
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Graduate Could a carbon planet have been formed in the solar system?
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High School Was I Spotting Mars in the East?
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High School Why do certain objects in space orbit others?
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Graduate The Mass cut - The relation between 44Ti and 56Ni in supenovae remnants
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Undergrad Can we seek out worlds closer to the center of the galaxy?
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Undergrad Oribtal and rotational velocities
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Graduate Are there any peer reviewed sources of a theory which calls for a smaller
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Graduate How much speed does a satellite gain when orbiting through resistance?
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High School Intelligent Life on Europa Speculation
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Undergrad What is our Solar System's orbital plane around the Milky Way?
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Graduate Questions about geometric albedo and phase angle
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Proving the Moon Landing: Facts and Evidence
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Stargazing Looking to buy my first telescope
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Graduate Important question (possible end of the world scenerio?)
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Graduate The Limitations of Intergalactic Travel
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Graduate How to Calculate the Length of a Quasar Jet?
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Undergrad What causes the variation in Mercury's synodic period?
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High School Jupiter-Venus Conjunction: How Often Does It Occur and How Can We Calculate It?
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Graduate Are dark energy and dark matter the same?
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Undergrad Celestial sphere and visible stars
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Undergrad How to learn celestial mechanics
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Undergrad The perihelion precession of Jupiter
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Where can I find reliable sources for online astrophysics lessons?
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Graduate Thoughts on Space/Time and Gravity
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Detecting an Ancient Civilization's satellite?
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Graduate Ratio of projectile to ejecta mass, shoot the moon.
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Graduate Particles of the most recent Solar ejection.
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Graduate Why Do We Use a Mean Sun That Moves Along the Equator Instead of the Ecliptic?
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Stargazing Why Are Planets So Small Through My Telescope?
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Undergrad How can we know/check the sun's current and latest chemical composition?
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Graduate What Has SETI Ruled Out in the Search for Alien Civilizations?
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Graduate Looking for someone who can do calculations on flyby anomaly.
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High School Huge solar flare heading for earth
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Undergrad How much space does a Pound of copper use
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High School Physics or Astronomy informative speech ideas?
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High School Where are free online classes for Scientific Notation?
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Graduate Strength of materials - neutron stars
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Undergrad What Is the Estimated Number of Homeless Planets in Our Galaxy?
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Undergrad Why Does Titan Have Fewer Impact Craters?
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Graduate Silly Dark matter question: why exactly is it necessary?
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Undergrad How do low mass stars outlive high mass stars?
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Undergrad Uncovering the Mystery of the Wow Signal: Can We Locate Its Source?
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Graduate Question about Cosmic Bagground Radiation
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Undergrad How Does Gravity Work From Earth's Core to the Universe's Edge?
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Graduate What can be Determined from Colour-Colour Diagrams?
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Undergrad Where Does Kinetic Energy Go During Deceleration?
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Undergrad Velocity determination through redshift
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Undergrad Symmetry of the Universe: Why Doesn't 0 = cba?
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High School Understanding Gravity: Causes, Sources, and Strength Explained
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Undergrad How much of an effect does fusion have on a star's gravity?
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High School My random thoughts about the sun, black holes, and gravity.
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High School What is the difference between Astronomy, Astrophyics and Cosmology?
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Graduate Question about galaxy formation and black holes.
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Graduate Does how black holes inside galaxies orbit around the central black hole tell us
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High School Has Anyone Explored Planetary Orbits Using Monkey Typewriter Method?
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