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.
Graduate Solving N-Body Simulation Problems with Gravitational Equations
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Undergrad Galaxies - spiral arms split, why?
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Undergrad Detecting Black Holes: Is It Possible?
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Undergrad Stars: Creation, destruction and impact on the universe
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Graduate Where Does Space Come From and What Theories Explore Its Origin?
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Undergrad Solving Sun-Earth-Moon Orbit Problem with Solar System Simulator
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High School Questions regarding Earth life came from Mars - ? - Thanks
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High School What is 1 AU? Definition & Explanation
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Undergrad Sun's Evolution: Tracing the Evidence from Red Dwarfs to the Present
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Graduate Is Space More Fundamental Than Time in Our Universe?
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Undergrad Is Time the Movement of Matter Through Space?
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Graduate What Determines the Order of Stars Hitting a Black Hole's Event Horizon?
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Graduate Is the Universe's Expansion Actually Slowing Down?
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High School Are Supermassive Black Holes Really at the Center of Galaxies?
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Graduate Communication signals and the speed of light
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High School Do we know what type of organism first started life on Earth?
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Undergrad How to Calculate Gravitational Acceleration on a Planet with Core and Shell?
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Undergrad Are There Recent Findings on Earth-Sized Exoplanets and Instrument Limitations?
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Graduate Can Earth Orbit a Black Hole Indefinitely?
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Undergrad What Would Happen If We Turned Off the Sun's Gravity?
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Graduate Is this reaction possible in the star?
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Graduate Does Gravity Travel at the Speed of Light?
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Graduate Could dark matter be explained as a quantum gravity effect?
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Graduate How can I access the Hipparchus HR Diagram data for my project?
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Graduate Three times as many stars? (new estimate by van Dokkum and Conroy)
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Graduate Building Blocks of Life: Paradox of Drake Equation Fl Term
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Undergrad Help Needed: Surviving Year-Long Placement with Mid-Semester Report
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Undergrad Universe contains many more red dwarfs than previously thought
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Undergrad Easy A Courses for Science Majors: Astronomy vs. Intro to Psychology
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Graduate Wow Anyone seen these pictures? Could they explain dark matter?
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Graduate Is Fusion possible at the accretion disk of a Black Hole?
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Undergrad Where Can I Find Resources on Orbital Mechanics for Game Development?
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Undergrad Need help converting values regarding Jupiter's mass, and moons.
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High School How Do Meteor Showers Occur?
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Undergrad What Formulas are Used to Put an Object into Orbit?
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Graduate Miniscule changes in the physical constants?
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High School Why Does the Moon Glow? Causes of Illumination
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Graduate How Can Maxima Help Solve 2+1 BTZ Black Hole Metric Calculations?
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High School Studying for Intro Astronomy Exam: Galileo & Star Spectral Class
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Stargazing Binoculars or Telescope: Which is the Better Choice for Amateur Astronomy?
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High School Is there a 3D map of the naked-eye visible nightsky objects?
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Graduate What Is the Typical Magnetic Field in High Mass Stars?
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Undergrad How dense could Earth's atmosphere potentially be?
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Undergrad Cometologist Brian Marsden Obit
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Graduate Spectroscopic Analysis of the IR-Visible Galactic Core
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Graduate Why the Sun Doesn't Move: Debunking Common Misconceptions About Solar Motion
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High School General info on our solor system
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High School Hubble Discovers New Supernova in Cygnus
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Undergrad What Forces Shape Bar-Centered Galaxies?
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Graduate Optimizing Gravitational Redshift Measurements: Techniques and Targets
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Graduate Extinction events and an astrolabe
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Graduate Unravelling the Mystery of "Faint Regime" in Cosmological Explosions
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Graduate How is the Galactic Magnetic Field Measured and Modeled?
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Undergrad Kepler's Second Law: Equal Area in Equal Time
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Graduate Could White Holes Exist Beyond Black Holes in Higher Dimensions?
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Graduate Stellar Collisions: Modeling Neutron Star & White Dwarf Interactions?
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Graduate Is the birth of the Universe a random event?
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Graduate What Is the Universe Expanding Into and How Fast Is It Growing?
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Undergrad Weather Ballon with Camera/GPS payload. 1x600g or 2x600g balloon for lift?
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Graduate Can we make a standard Universe clock?
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High School What was the level of astronomy like in say 1888?
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Graduate Binary w/ black hole - semi-major axis?
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Rare, not so well known facts about Andromeda. ?
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Graduate Could We Detect and Avoid a Black Hole Approaching Our Solar System?
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Other Solar Systems: What Are They?
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Undergrad Detecting a small object in space.
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View Milky Way in Oregon: Tips for Naked Eye Viewers
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Graduate An interesting notion about inflation.
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Allan Sandage, Astronomer, Dies at 84; Charted Cosmos’s Age and Expansion
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Stargazing What features of Andromeda Galaxy can you make out with an Amateur Telescope?
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Graduate CMB fluctuations related to dark matter and normal matter?
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Graduate Einstein + Hawking = Dark Matter ?
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Undergrad Photons in Empty Space: Is Space Full?
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Graduate Universe only appears to be expanding.
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Undergrad How a binary system affects gravity on members?
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Undergrad Equation of an Elliptical Orbit for a Moon around a Planet
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Undergrad Uncovering the Mystery of Potential Mars-Sized KBOs
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Graduate Understanding Photon Decay in Vacuum: Rate, Influence, and Causes
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Consciousness and Reality: A Symbiotic Relationship
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Undergrad Could a Moon Make Gliese 581 g Habitable?
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Graduate The outcome of bending a blackhole to itself
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Graduate Help with gravitational potential energy of stars
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Graduate Calculating Luminosity of a Star at Different Stages
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Stargazing *Question about Mercury, and viewing it from various view (binoculars to hubble)
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Graduate Dark Matter as a Yukawa Like 5th force?
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Graduate How Does Hawking Radiation Affect Black Hole Mass?
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Undergrad Efficiency of solar panels: Earth vs Space
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Graduate Some questions about glob. clusters and dark matter
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High School Is There a Planetoid Bigger Than Pluto?
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High School Why is everything in the Solar system on a flat plane?
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New goldilocks planet and if there is water on it?
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Undergrad I and Tim float a long string of closely spaced helium-filled
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Graduate Are We Correct? Calculating the Age of the Universe
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Graduate Distribution and proportion of dark matter in galaxies
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Stargazing Which is better, a refracting or a reflecting telescope?
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Undergrad How do I calculate M_I from M_J values?
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Graduate Thought Experiement: The Earth's Fate with Added Mass
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Comet Hartley 2 Flyby: Incredible Images from NASA's Deep Impact Probe
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Undergrad Is the Lunar Laser Ranging Experiment a Good Topic for an Astrophysics Project?
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Stargazing Looking for images of same object, but with different telescope sizes?
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