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 What Caused Jupiter to Lose a Stripe?
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Graduate Curvature of space and dark matter
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Graduate What should we be doing for future astronomers?
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Undergrad If we could see 13.7 Billion lyears away?
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Undergrad Black Holes & White Holes - Theoretical Plausibility?
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Graduate Gravitational Energy Equation of State Parameter
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What is the energy that moon got on us?
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High School Is it true that gravitation on the full moon day is less than other days?
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Graduate Gravitational Model of Tides: Earth and Sun Potential Addition
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High School Do sattelites orbit with the rotation of the earth?
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Graduate What formulas do I need to solve the above problems?
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Graduate Did the Universe truly form out of nothing?
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Undergrad What does When the Universe was one minute old mean?
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Graduate If the universe is closed - scenario question
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Graduate Looking into the past with telescopes
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Graduate State of Pulsar Theory & Observations
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Graduate Limit to Expansion of the Universe
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Graduate How is Heliocentric Earth Longitude Measured?
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Graduate Negative energy versus positive energy
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Graduate SMB Feeding Problem Dark Matter Problems
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Graduate Can a Magnetic Field Escape a Black Hole?
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Graduate How Are Pressure and Density Defined in the Comoving Coordinate System?
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Graduate Part of universe mapped by coordinates
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Undergrad What Determines the Differences in Life Across Different Planets?
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Graduate Is Dark Energy Just a Myth in Modern Science?
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Graduate Theoretical Question about Milky Way
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Graduate Can I Travel Faster Than Light While Considering Relativity?
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Graduate Cosmological redshift as a Doppler effect or metric evolution?
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Undergrad Terminology: Dwarf Planet vs. ProtoPlanet
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Graduate Request permission to discuss Schild's papers
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High School Will a black hole revolve around a non-black hole object with greater mass?
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Lunokhod 1 found But why lost in the first place?
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Graduate Understanding the Debye Length in Plasma Physics
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Graduate Extrasolar Moons: Could There Be Earth-Sized Worlds Around Gas Giants?
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Graduate Which cosmological model do you find most compelling?
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Graduate What is and is not Mainstream Astrophysics?
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Graduate What Insights Can Age, U-B, B-V, and V Data Provide About Star Clusters?
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Graduate What is the Scale of Homogeneity in the Universe and How is it Measured?
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Graduate What will the universe *look* like in 15 billion years from now ?
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Graduate Universe Diameter: Explained by Howard
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Graduate Earth-like Gravity: What Effects on Small, Dense Objects?
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Undergrad Is there a term for the vertical elongation of a planet?
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Undergrad Black Holes emitting jets of gas?
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Graduate How could the big bang create time?
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Graduate Do MECOs Challenge the Existence of Classical Black Holes?
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High School How Much Would Your Weight Change on the Surface of the Sun?
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Graduate Accelerating Expansion, or Constant?
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Graduate How does the velocity of light change in the vicinity of a black hole?
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High School Why Do Things Spin? Solar Systems, Planets, Galaxies
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Graduate Big Bang Theory: How Could Something Without Part Erupt?
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Stargazing What are the best telescopes for beginner astronomers on a budget?
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Graduate Is There Mathematical Proof That Stars Are Still Being Formed?
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Graduate Transfer orbits for dummies A hillbilly tutorial.
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Graduate Eccentricity and specific mechanical energy
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Graduate Red Shift & Time: Can Time Be Expanding Too?
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Graduate So, is it correct to measure centrafugal force due to a planet's rapid orbit?
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Can I find a free 2010 sky almanac on line?
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Graduate Uncovering the Mystery: Inertial Energy and the Standard Model Explained
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Undergrad What Would Happen if a Gamma Ray Burst Hit Our Sun?
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High School Are galaxies fairly evenly distributed?
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Graduate Is the universe accelerating it's expansion?
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Graduate Exploring the Angular Size-Redshift Relation in Cosmology
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Graduate Observable Boundary of Expanding Universe: Is There a Limit?
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Graduate CMB Redshift: 13.7B Yrs Ago, 10.4x Speed of Light Today
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Undergrad Ice Discovered on 24 Themis Asteroid
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Graduate Did inflation itself make the universe bigger than what we currently observe
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Undergrad Jupiter-sized Planet Lurking in Oort Cloud?
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Undergrad How can we know that the universe is expanding
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Space Travel Videos: Find 10-20 min Video for Seminar
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Graduate Singularity and Anti singularity
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Graduate Could Tachyons Exist in a Parallel Universe?
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High School Do Astronauts See the Earth Spin?
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Graduate Why does the CMB appear to us the way it does?
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Undergrad Is the solar brightness dependant on how many solarspots
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Graduate How to Derive β and Identify Superluminal Motion?
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Undergrad Why Are We Trying to Reach Galaxies Drifting Apart at Light Speed?
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Undergrad How to Determine Right Ascension and Declination from Keplerian Elements?
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Graduate Where Does the Lost Energy of Redshifted Photons Go?
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Graduate Stany asked about LHC BH creation
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Graduate What was the extent of the primordial universe at the time of the big bang?
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Graduate Dark Matter and Its Relation to Energy
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High School How Do I Find Distance Using Redshift?
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Stargazing What are the Limits of Wavelength Detection in Modern Telescopes?
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Graduate Big Bang From Black Hole. Each Black Hole creates a New galaxy?
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Graduate Is J Richard Gott's Self-Creating Universe Theory Still Relevant Today?
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Graduate What remains of an atom is ripped apart?
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High School Arcsecond size of the Andromeda Galaxy
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Graduate Can True Zero Velocity Be Measured in Space?
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Graduate The Clumping of Dark Matter: A Question of Friction?
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Graduate Inflation or normal space/time misunderstood?
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High School A strange informataion is ot realy
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Graduate Planck's Length and the Quantum Theory of Gravity
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Graduate How can space be created faster than light during inflation?
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Graduate Is there a place in space where there is no energy?
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Undergrad Need Help Answering Astronomy Questions? Download the PDF!
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Graduate Black hole/Hawking radiation thought experiment
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Graduate Why don't black holes disconnect themselves from the universe?
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Graduate How Old is the CMB? Big Bang Cool Down Explained
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Graduate Explaining Quasar Feedback for the Struggling
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Undergrad Dark Matter and The Eather: What's the Difference?
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