Astronomy, Astrophysics, Cosmology Forum

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Join in expert discussion on the topics of Astronomy, astrophysics and cosmology. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
High School Did the Big Bang create space and time?
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Stargazing Geomagnetic Storming: High Latitude Regions Alerted 15-18 Feb
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Undergrad Is Jupiter Responsible for the Majority of the Solar System's Angular Momentum?
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Undergrad What will happen to the Hubble value if dark energy is dynamic and decreasing?
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Undergrad "Centaurus A Contradicts Dark Matter Models"
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High School How do scientists measure mass, radius, and distance in astronomy?
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High School Traveling to Mars and time dilation
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High School Mutually orbiting bodies in an isolated universe
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High School No Imbalance between Matter/AntiMatter
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Undergrad Colonies on Mars -- fundamental problem
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Undergrad Why is a statistical explanation for Baryon Asymmetry wrong?
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Undergrad Origin of the Moon: Latest Discoveries and Theories
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High School The Universe without Cosmic Inflation?
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High School Colliding black holes effect on the Richter scale
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Graduate Difference between eclipsing binaries and exoplanets
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High School Lack of time dilation in type 1a supernova
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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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High School Are the 3 space dimensions "equal"?
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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 Does dark matter contribute to my body mass?
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Undergrad Getting the wrong multipole for 1st acoustic peak
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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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Undergrad Shape of the universe, and a few other questions....
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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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Undergrad 10,000 black holes near Sagittarius A ?
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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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High School Are heliocentrism and geocentrism both correct?
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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 How does one actually compute a correlation function?
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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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Undergrad Observational evidence against expanding universe in MNRAS
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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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High School How dense was the first starfield we might have seen?
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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 The deviation of Universe expansion from general relativity
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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 What fraction of the matter in the universe is in black holes?
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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 Does Hubble's Law imply that galaxies are accelerating away
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Graduate Comoving distance, causality volume and entropy
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High School Using Venus in the Parker Solar Probe mission
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Undergrad Where are the Constants of Nature stored in Multiverse?
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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 Quantum foam ruled out by distant quasars
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Undergrad Relationship between star radius and luminosity
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Undergrad Are there any local effects of Einstein-de Sitter expansion?
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Undergrad Calculating recession vs attraction
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Undergrad Inter-Bubble Connections in Inflationary Multiverse Models?
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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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Undergrad Has cosmic background radiation been measured underground?
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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 Documentary about Hawkings contributions to science
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High School Speed of Light Puzzle: Is c a Localized Value?
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Undergrad Is a galaxy's halo displaced dark matter?
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High School Gravity of Universe A Million Years Ago: Affect Us?
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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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High School How can particles escape from a black hole?
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Undergrad Why are non-relativistic particles not redshifted?
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Undergrad Observational Evidence for Metric Expansion of Space?
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Graduate KIC 8462852 (dipping again in March 2018)
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High School Is there a specific unit used to measure redshift?
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Undergrad Why is the inflationary potential self-interacting?
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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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High School Curvature at the center of a spherical universe
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Undergrad What is the net charge on the Earth?
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