Astronomy, Astrophysics, Cosmology Forum

Graduate Uncovering the Optimal Epoch for Life in the Universe

Graduate Something majorly wrong with this paper?

High School What is at the center of the universe?

Graduate CMBR - a possible alternative explanation?

Graduate What is the relationship between gravity and dark matter in the universe?

Graduate Got a link for the angular-size redshift relation?

Graduate Does Mass and Energy Affect the Path of Light Differently in General Relativity?

Graduate Heard anything about GPB results?

Graduate Help Visualisation and Stats for a Determinist

Graduate Big Crunch or Big Rip? Universe's Future

Undergrad Velocity to Keep Object in Orbit Above Moon - Jeffrey

High School Why the sun/moon looks bigger at the sunset/rise?

Graduate Cosmography: Measuring Universe Expansion via Supernova Data

Graduate What causes the squiggly orbit and how can it be eliminated?

Graduate How could a spaceship mimic gravity?

High School Expanding into Astrophotography: Seeking Recommendations for a £300 Telescope

Graduate Uncovering the Truth: A Physics Site Dedicated to Evidence-Based Discussions

Graduate Understanding the Expansion of Space: A Scientific Perspective

High School Measuring Distance to Understand Hubble Constant

Graduate Why Dark Matter? Questions on Scientific Inquiry

High School Quick (Most likely simple) Question

Stargazing Heres my pic of m36 taken the other night

Undergrad WHY is the sun red during rise and set

High School Where Do We Look When We See the Milky Way from Earth?

High School Bertrand Russell's Paradox: Certainty or Doubt?

Graduate Expansion of the Universe and the Limitations of Hubble's Law

Graduate Was Newton in Error? Philosophical Prejudice & MOND Theory

Stargazing My Latest M-51: A Comparison with Previous Attempts

Graduate Effect of Sun movement on Planetary orbits?

High School How do astronomers calculate the distance to an object using trigonometry?

Undergrad What Are the Key Differences Between Astronomy, Astrophysics, and Cosmology?

Graduate Solutions of Friedmann Equations

Graduate What If the Moon and Earth Were Twin Planets?

Graduate Orbits of Andromeda and Milky Way Galaxy About Each Other

Graduate Is the trampoline analogy an accurate representation of space-time curvature?

High School Anyone own a Celestron 11'' schmidt cassegrain?

Undergrad High Velocity Impact of Planets - Atomsphere question

Graduate The Elusive Nature of Dark Matter: Why Can't We Detect It in Our Solar System?

Graduate Why Dark Energy? Investigating Universe Expansion

Graduate Is There Evidence for Handedness in the Universe?

Undergrad Experiments that provide evidence for the expansion of the universe

Undergrad Earth's rotational speed when its gravity is 5.0m/s2

Undergrad Radiative Transfer: Learn Physics - Free Reference Guide

Undergrad Acceleration, velocity, distance, speed and time help please

Graduate Can Time and Motion Be Separated in an Expanding Universe?

High School End of the Universe: Light is the Final Frontier

Graduate How Does Energy Influence Our Movement in the Expanding Universe?

Graduate How Is Total Radial Velocity Determined in Binary Stars?

Undergrad How Do You Begin Your Journey in Astronomy and Astrophysics?

Graduate Big Bang and Infinite Universe Theory

High School Can Aliens See Events from the Past?

Graduate L1 L2 Points: Influence & Model Dependence

Undergrad Is the Moon's Rotation a Coincidence?

High School Questions out of curiosity… Enlighten me please

Graduate What Are the Key Alternative Cosmological Models Beyond the FRLW Framework?

Graduate Illustrating the CMB: Drawing Concentric Circles to Show Expansion Over Time

Graduate What are the Detailed Steps and Mechanisms of Stellar Evolution?

Graduate Lunar Laser Rangefinding: Testing GR's Gravitomagnetic Phenomenon?

Undergrad Universal Gravitation and orbit

Undergrad What Are the Key Insights and Fascinating Facts About Cepheid Variable Stars?

Stargazing A rough calculation on the duration of lunar eclipse

Graduate No Big Bang? Endless Universe Made Possible by New Model

High School Could the Moon's Shape Explain Why We Only See One Side?

Graduate Gravitational Potential Enery Problem

• Poll

Stargazing Watching the Lunar Eclipse on March 3rd?

Graduate Is the Universe's Oscillating Theory Inefficient?

Undergrad Could a Giant Iron Planet Form a Black Hole?

Graduate How Do Cosmic Clocks Influence Our Understanding of General Relativity?

Undergrad What is the vector equation for escape velocity?

Graduate Where Can I Find Data on Stellar Types and Their Locations in the Milky Way?

Graduate Is the Standard Cosmological Paradigm Explained Well by Hu and Dodelson?

Graduate Explain p-process in nucleosynthesis

Graduate Charged particles from our Sun travelling too fast?

Graduate Gamma Ray Bursters: Electrons, Anti-Electrons & Mass Exploding

Graduate How Can Quantum Mechanics Illuminate Our Understanding of Astrophysics?

Graduate Stephen Hawking's Theory of Everything and Imaginary Time

Undergrad Doesn't dust or debris collect at the L4 and L5 Lagrangian points?

Graduate Big Bang afterglow fails intergalactic shadow test

Undergrad Astro simulation program problem - program bugs?

Graduate Chapter07.pdfCan Killing Vectors Derive the Schwarzschild Metric?

High School How is a Comet Defined?

Graduate Is Every Point in The Universe a Microcosm of the Whole of Creation?

Graduate Is the Universe Expanding Faster Than the Speed of Light?

Graduate David Wiltshire: Cosmic Clocks, Cosmic Variance & Cosmic Averages

Graduate Planetary formation and effects of gravity

Graduate Nucleosynthesis with the Big Bang and the Supernovas?

Undergrad What would happen if I were to near and be consumed by a black hole?

High School Formation of the Moon: A Vibrating History

High School No big planets close to the Sun?

Undergrad Water on Mars: Separating Fact from Fiction - Textbook Deadline Approaching!

Undergrad Black holes, the sun and wormholes.

Graduate Will the new WMAP3 data challenge the assumption of a spatially flat universe?

Undergrad Why Doesn't the Night Sky Shine as Bright as the Sun Despite Infinite Stars?