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 Detecting Cosmic Dust: The Challenges and Solutions
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Undergrad Orbits, ellipitical, circular, or ?
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Graduate Sunspots, areas of intense magnetic fields.
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Undergrad Will the earth and sun ever be tidally locked?
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Graduate What is the significance of Eq. 15 in the expansion of HII regions?
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Graduate Space Elevator: Magnitized Cable for Supersonic Travel
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A Look Back at Aerospace Innovations: Celebrating National Aerospace Week
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What Makes an Effective Astrophysics Blog?
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Undergrad Example of a mass orbiting more massive, less luminous body?
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High School Can a Planet Explode Like a Star?
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Graduate Gravity: How Does Spacetime Bend?
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Graduate Vega. Are Sol and Vega destined to collide?
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High School Kepler 16-b: first circumbinary planet?
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Undergrad Can a sun rise and set on the same horizon?
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New 3D model of solar system and night sky
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Graduate Effect of lunar/solar gravity on shape of earth
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Colourful moon dog observed, or what?
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Undergrad An impractical but difficult problem I stumbled upon
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Undergrad Mass of the core of the sun > mass of the sun?
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Graduate What would happen if two Earth size planets very slowly collided?
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Graduate Gravitational Variances in Space
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Graduate The destruction of matter due to spaghettification
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Undergrad The gravitational tug of the Sun and the Moon on Earth - a question
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Undergrad Earth's gravitational field size.
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High School Why can't Jet planes fly in space?
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Old news as new news. Saturn 5 years ago.
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High School Preparing for a Career in Astrophysics: Advice for Young Scientists
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Undergrad Earth Reaches Sun's Chromosphere: Timing Estimate
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Undergrad Spectroscopy: What Do He II & O III Lines Mean?
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Undergrad Super Novas Create Heavy Elements: Does this absorb or release energy?
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Undergrad How Do You Calculate Star Rise and Set Times for Different Declinations?
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High School Observing the new supernova in Ursa Major (M101, pinwheel galaxy)
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Stargazing Aperture Fever: Cure the Astronomy Bug for Stargazing & Research
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Graduate How do neutron stars emit light?
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Graduate Can Wormholes Enable Safe Space Travel Despite Their Limitations?
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Graduate Is Dark Matter Denser in the Sun's Core and Does It Interact with Black Holes?
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Undergrad Collapsing Stars on the H-R diagram
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Graduate Gravitational Waves: Constructive Overlapping Effects
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Graduate Size and Time Dilation: How Perception of Time is Affected by Size | GRB
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Graduate Can we use entangled particles for instant communication in space travel?
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Graduate Dark matter may be an illusion caused by the quantum vacuum
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Graduate Searching for Microscopic Black Holes in the LHC
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Graduate Kepler's 3rd Law as a result of Newton's Laws
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Graduate Early Warning System for Sunspots & Solar Storms
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Graduate The shape of black holes and their surroundings
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Graduate Hawking Radiation and Particle/Anti-Particle
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Undergrad How Can We See Light from Black Holes?
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Graduate Correctly calculating gravity classically.
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Graduate Is the Big Bang Theory a Linear Expansion or Something More Complex?
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Undergrad How Is Non-Thermal Radiation from the Sun Detected?
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Graduate How do we determine the age and elemental composition of a star?
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Graduate Chandrasekhar limit equation/white dwarf mass-radius relation
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Graduate Can We Detect Signs of Life on Exoplanets Using Spectral Analysis?
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Undergrad Spectrum of the Sun vs black body
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Undergrad 3D Model of the 2MASS Redshift Survey
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High School Is Tyche the Missing Planet in Our Solar System?
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High School Interstellar Sighting: Who Will See It First?
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High School Is 99% of the volume of the universe empty?
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High School Why do stars twinkle and what causes it?
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Graduate Does Our Inability to Perceive Beyond the Universe Mean There's Nothing There?
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Graduate Starquakes: What are They & What Causes Them?
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Graduate Can a Black Hole's Gravitational Field Alter Light's Path?
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Stargazing Vendor for telescope mirror cells?
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Graduate Supercomputer Galaxy Simulation
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Thought I saw my first UFO today.
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High School Why Don't We Move Backward When Jumping on a Rotating Earth?
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Graduate PSR J1719-1438: The Planet-Sized Diamond in Space
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Undergrad How Does General Relativity Explain an Object Thrown Up Returning Back?
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Stargazing What Discoveries Does the Very Large Telescope (VLT) Allow Us to Make?
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Graduate Expansion of universe/what rate?
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Undergrad Why Do Stars Flicker? Not Planets
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Undergrad Can You Walk on a Brown Dwarf?
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Graduate How long does it take for a black hole to devour a star?
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High School Was the early church right and Gallelio wrong?
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Are all atomic particles the same age?
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Graduate Why is it so accepted that matter falls into black holes?
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Undergrad How many stars does one create and how many times can stars be
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High School Help Identifying Unclear Object Seen Through Telescope
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Undergrad Tidally locked planet - shouldn't the Goldilocks zone be wider?
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Undergrad Infinity at the Center of the Galaxy
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Graduate Pressure distribution in the sun
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Undergrad Did the Big Bang create the most massive black hole in the universe?
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Graduate Gravity bending due to another Gravitational Source
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Graduate Mass to Light Ratio for Dwarf Galaxies
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Beginner Just Joined and Got myself a toy
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Graduate State of the Universe before Big Bang
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Undergrad How would I go about creating a computer simulation for a Space Elevator?
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Graduate About some possible theories of the creation of the universe?
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Graduate Is the exotic environment of a black hole, home to the superforce?
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Undergrad What happened to stellar astrophysics?
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Graduate Matter, anti-matter, and singularities
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Graduate Sudarsky's Extrasolar Planet Classification System
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Undergrad Effect of Moon's Orbital Speed on Frequency of Solar Eclipses
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Undergrad From every angle, what is the complete shape of a black hole?
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Stargazing Reflecting telescope principle and model please?
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Graduate Reason for Loss of Mas of Planet Mercury
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High School Solving Mystery: Bright Star Disappearing in Vrboska, Croatia
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Undergrad What elements are present in the sun and how do they form?
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Undergrad Can a Star Too Small to Go Supernova Still Go Supernova?
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Graduate Spaceship concepts from The Dream Machines
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