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 Difference between eclipsing binaries and exoplanets
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High School How Does the Midnight Sun Occur in the Arctic Region?
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Undergrad Dark matter and old shell theorem
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Undergrad Data Model of Kepler's Second Law of Planetary Motion
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Stargazing Does a Radio Telescope Have Aberration and How Does it Affect Its Performance?
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Undergrad The Trouble with TESS: Examining its Limitations in Exoplanet Observations
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Graduate Neutron star collisions as a heavy element source
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Undergrad Can two planets share the same orbit without catastrophic consequences?
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Undergrad Can black dwarfs exist in the present Universe
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High School Can Friction Create Preferentially Circular Orbits?
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Undergrad How does the distribution of elements change over time?
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Undergrad Will white dwarfs cool down to blue, then yellow, then red?
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Undergrad How Does the GAIA Program Count 1.7 Billion Stars in Its Image?
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High School Is an External Force Driving the Acceleration of Universe Expansion?
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Undergrad N-body Simulations: Density vs Circular Profiles
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Graduate This is the most active place in the universe
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Graduate Using the Sloan Digital Sky Survey to Extract Quasar Spectra and Fit Models
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High School Massive Football Field-Sized Asteroid Comes Close to Earth
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High School Number of stars in the universe over time
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Stargazing Movement of Stars seen from the North Pole
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Undergrad What is the relationship between gravity and density?
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Undergrad Why Is Convection Efficient in the Outer Layers of Stars?
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Undergrad Calculating the incidence angle of the Sun
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Undergrad Stellar Thermal Energy with no Nuclear source
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High School Orbit circularisation/insertion spreadsheet
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High School Is the Asteroid Belt's Shape Misrepresented?
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Undergrad Source of the weather on Neptune
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High School What is the Earth's path in relation to the sun and the expanding universe?
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Undergrad Origin of the half factor in Euler-Lagrange for geodesics
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Undergrad Dark Matter and who will discover it first?
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Undergrad How to describe the Sun's interior?
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High School Is the Milky Way the same as 'The Galaxy'?
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High School Basic rule for Atmospheric Reentry of Glider Class vehicles
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High School Density of matter at a galactic center
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Undergrad Expanding math space implies expanding space?
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High School Using Venus in the Parker Solar Probe mission
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Undergrad Milky way arms and the position of the Earth
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Graduate Where can I find a text about heavy elements migration?
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Super Blue Blood Moon: Did Anyone See It?
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Undergrad The Explanation for the Mass-Luminosity Relation
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Undergrad Relationship between star radius and luminosity
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Undergrad Questions About Acceleration and Jerk in Orbits
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Undergrad The Role of magnetic field during the formation of small to medium scale stars
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Undergrad How do we measure the velocity of stars in a galaxy?
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High School North and South poles of Mars are at different temperatures?
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Undergrad Standard Solar Model: Learn About Its Complexity
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Undergrad Diameter of a Galaxy: Calculate Distance/Arc Min?
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High School HiRISE images show strange-looking Mars formations
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High School Why does the flag on the moon appear to be waving during the Apollo 13 mission?
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Undergrad Star formation and heavy elements
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High School Chinese not sure where space station will land
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High School Survival on Mars: Radiation & Temperature Challenges
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Graduate KIC 8462852 (dipping again in March 2018)
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Graduate What could potentially explain the onset of the Pioneer Anomaly?
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High School Interplanetary travel, Arctic sea ice
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Undergrad What is the net charge on the Earth?
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High School Extracting Spectra from Sloan Digital Sky Survey Data Releases 13 and 14
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Undergrad Why Are Space and Time Considered the Three Dimensions of Our Universe?
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Undergrad Minimizing diffraction in images using a photodetector
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Undergrad Can Newton's Theory of Gravity Explain Planetary Elliptical Orbits?
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High School Sholz's star entered the Oort cloud ~70kya
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Undergrad Why is the density of photons in the Eddington Limit derived this way?
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High School Does Human Population Growth Impact Lunar Orbit?
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Undergrad What is the recession speed of a galaxy based on the wavelengths of two stars?
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High School Physicist who Questioned Black Holes
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Undergrad Qs re aspects of the Holmdel Horn Antenna used to find the CMB
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High School Third Cosmic Velocity: Will Voyagers Leave Solar System?
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High School What Is The Energy of a Point In Space?
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High School Does a partial solar eclipse never completely rise?
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Undergrad Can Tidal Locking Occur in Binary Neutron Stars Before Merger?
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High School Remembering the Legacy of Stephen Hawking on Pi Day - BBC News
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High School Life Outside Our Planet Without Oxygen and Water
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Undergrad [Question] Tell me the latest catching news about black holes
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Undergrad Would you see stars on the early Earth?
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Graduate IRAF xgterm implot unresponsive (mac OS High Sierra 10.13.3)
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Undergrad Was the Universe Really Dark and Quiet After the Big Bang?
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Graduate Help with an Apollo space program flight simulation guide
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Undergrad Observation of Alfvén waves heating the Sun's corona
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Graduate Lane-Emden Eqn 5: Solving for Polytropic Index
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Undergrad Chandrasekhar Mass and the Relativistic Star: Finding the Value of K for n=3
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Undergrad Is the Sun's Magnetic Field Driven by a Double Dynamo?
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High School Spiral galaxies: Multiple axies of rotation?
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Graduate What is the importance of EM measurements in astrophysics?
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High School Massive Space Objects Have Connections to QM Math
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Undergrad Confusion about Corotational and Lindblad resonance
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Undergrad Calculate Voyager trajectory using JPL data
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High School Are the profiles for reflecting/refracting spherical?
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Undergrad Revolutionizing Space Travel: The Innovative Design of the Circular Module
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Undergrad How close is Earth to the closest black hole?
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High School Are Dark Matter Concentrations on Earth Seasonal?
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Undergrad Wonderful new images of the center of our galaxy
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Undergrad Can a Single Observation Determine Retrograde Motion?
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Undergrad Perceived vs. Actual Velocity in an Expanding Universe
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High School How large would the sun be if it were frozen?
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Undergrad Lunar apsidal precession relative to equinox
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High School When Does a Star Form & What's Best for Life?
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Undergrad Does the pattern of the CMB change?
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High School What do I need to become an Astrophysicist?
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Graduate Interacting Universes: Dark Matter & Gravity
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Undergrad Supernova - the Birth of One is Spotted
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