Astronomy, Astrophysics, Cosmology Forum

Graduate Baryonic acoustic oscillations and density perturbations

Undergrad Inverse square law explains Olbers' paradox?

Graduate Must the curvature of space be constant?

Graduate Superconductors and Space: Can Electricity Bend Reality?

High School How does Andromeda look from just a set of 10x50 binoculars.

Stargazing Telescope to see up close to nebulas and galaxies

Stargazing The What telescope are you using thread

Graduate Bianchi Models and Kantowski-Sachs

Graduate CMB and Absolute Rest: Resolving Contradiction

Graduate Finding a constant in an expanding universe

Graduate What is quintessential inflation and why is it considered fine-tuned?

High School The idea of the universe repeating itself is troubling me

High School What would gravity be in these 2 conditions

Graduate Higgs field in the early universe

Graduate Increasing energy scale in an expanding Universe?

Graduate Recommendations for astrophysical simulation software.

Stargazing Remote Telescopes for New or Old Astrophotographers

Graduate Can Black Holes Have Poles Like Planets?

Graduate Faith of Quantum Entanglement once it enters two different black holes

Graduate New paper says universe not expanding - should it be taken seriously?

Graduate The Hawking radiation and information paradox

Undergrad How to calculate absolute magnitude of a stellar body?

Graduate Definition of hypersurface orthogonal

Graduate Why does the furthest stars seem to be moving away faster than light?

Graduate Are Flat, Coplanar Orbits Only Found in Spiral Galaxies?

Stargazing Can a Simple 80x Telescope Reach Maximum Resolution?

Graduate Question about the CMB and WMAP

Undergrad Apparent Magnitude: Understanding Star X's Brightness

Graduate Do clocks speed up in an expanding Universe?

Graduate Understanding Dark Matter: A Simple Explanation

Graduate Dark matter and weighing galaxies

Graduate BOSS questions cosmological constant (undecided)

Graduate Expanding universe - energy/information conservation

Graduate Finding the mass of a super-massive Black Hole?

Graduate Dark Matter Formation: Exploring Big Bang Theory

Graduate Cosmic Dynamics - Cosmological Constant

Graduate Is Dark Matter Filling the Universe's Voids?

Graduate A question on the meaning of dark energy

High School Why do I see stars as a point in the sky?

Undergrad How to look at stars to go back in time?

Graduate Is the universe really expanding?

Graduate What Evidence Supports Sagittarius A* as a Supermassive Black Hole?

Undergrad Amount of solar energy per day in a given location

High School Are There Many Suns in the Universe? A Debate

Graduate Establishing a Mutual Coordinate System for Interstellar Communication

Graduate "Implausibly Large Structure" in the Universe

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Undergrad Are Black Holes Really Black or Just Colorless Void?

Graduate Doppler Effect on Light: Understanding Blue Shift in Starlight & X-ray Formation

Graduate Could Dark Matter Be A Property of Space?

High School Jupiter: Gas Planet? Landing Possibility & Facts

High School Why does the Sun appear to change color throughout the day?

Undergrad Measuring Earth's Orbit: Methods and Distortions Explained

Graduate Hubble's Law and Acceleration: Are Distant Objects Accelerating Away from Us?

Undergrad Why does the speed of light never slow down?

Graduate Will the Cosmos Expand Forever or Collapse?

Undergrad What Are the Best Resources for Understanding Star Clusters?

Graduate Where does new space come from as the universe gets bigger?

Graduate A couple of questions about singularities

High School Can a triple star have a planet around it ?

High School How Do Objects Hang in Outer Space?

Graduate Sun can absorb almost 200,000 more Suns?

Graduate Do heavier elements break down during supernova?

Graduate The beginning for time for beginners

Undergrad From nothing & nowhere to everything.

Graduate Hawking Radiation and the Decay of Black Holes

Graduate Status of Cosmic Strings and Stringy Inflation

Graduate Could light explain dark energy?

Graduate Is The Universe A Closed System?

Stargazing Telescope that can easily be connected to a laptop

Graduate A model of galactic star formation

Graduate Dark energy and the CMB cold spot

Graduate The first realistic virtual universe created

High School App/program that allows you to adjust spectrums of light?

Graduate Does Interstellar Gas Affect Atmospheric Seeing in Ground-Based Observations?

Graduate Is Our Universe a Black Hole?

Graduate Radius of the smallest exoplanet detectable with the transit method

Undergrad How do we find the exact temperature of a star/galaxy?

Graduate How is dark matter distributed in the Milky Way and what effects does it have?

Undergrad Titan vs Earth: Hydrocarbons vs Water - Pros and Cons for Thriving Life Forms

Graduate Dark energy versus cosmological constant

Graduate How could Einstein's theory contradict to the quantum mechanism?

Graduate Inflation and superluminal expansion

Graduate Conserved charge in FRW expansion

Undergrad Calculating the % hydrogen and % helium

Graduate Cosmological Constant & Fine Tuning for Life

Graduate Number density/average distance relationship question

Undergrad What Are Black Bodies & Why Are Stars Considered Them?

Graduate Something or nothing, which is more supported?

Graduate How is the scale factor related to redshift in the FRW model?

Graduate Do contracting objects show red shift?

Undergrad The Meaning of 'Proportion' in Richard Feynman's Views on the Universe

Graduate Understanding Black Holes: Questions, Equations, and Theories

Graduate First Hyper Velocity Star Cluster Observed

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