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.
Graduate Universe expanded faster than the speed of light during inflation
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Undergrad Actual year/day vs earth's movement
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Graduate Can we tell apart antimatter from matter?
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Undergrad Questions Regarding an Alternate Planet
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Undergrad What Is the Difference Between Dark Matter and Dark Energy?
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Graduate Modeling Universes: Can We Predict Theoretical Universes?
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Graduate Black Holes and Variable Infinities
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High School What type of athmosphere would a planet with red and pink trees have
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High School Could Harvesting Materials from the Solar System Affect Earth's Orbit?
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Undergrad Could a planet ever be split into two halves?
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High School Geosynchronous vs geo-stable orbit?
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Graduate Could Jupiter Be Ignited for Fusion?
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High School When do neutron stars, supernovas, and pulsars form during a star's life?
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Undergrad Sedna's Long Orbit: Uncovering the Reasons Behind Its Unusual Path
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Undergrad How does the space station survive the damages caused by debris in space?
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Graduate Does Gravity Wave Travel Faster Than Light Wave Near a Black Hole?
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Graduate Convert ICRS to ECI: Engineer's Guide
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Graduate Some thoughts concerning backgroun radiation
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Stargazing About the wave nature theory In the case of Lunar Eclipse
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Graduate Is the CMBR Data Truly Singular?
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Graduate Blackbody Prediction for CMBR: Alpher, Herman, and Gamow's 1948 Theory
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Undergrad What is the best scientific method to deep space travel
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Stargazing Eclipse, reflected light, Alternate Universe?
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High School Can You Outrace the Sun? Debating the Possibility and Necessary Speed in MPH
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Graduate Solar spectral irradiance at earth's TOA
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Graduate Is MC22 a Neutron Star or a Black Hole?
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Undergrad Shockwaves and thermal energy created by a dying star
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Graduate Black Hole Binding Energy Radiation
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Graduate How Much Starlight is in the Galaxy and Can it Power Advanced Civilizations?
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Graduate Is the Last Scattering Surface Finite or Infinite?
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Graduate Is Free Will Possible in a Deterministic Universe?
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Graduate Estimating Exoplanet Temperatures
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Graduate Is Dark Matter and Dark Energy Present on Earth?
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Undergrad Eternal universe vs finite life of stars
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Undergrad What does light emitted by quasar convey?
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Graduate Why Are Black Holes Considered Singularities Despite Neutrino Emission?
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Graduate Would a specific change in earth's rate of precession mean no seasons?
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Graduate Disappearing Sunspots, Minus 50 Gauss/yr
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Graduate What are the mechanism implications of MECO?
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Undergrad Why Do Vectors Cause Issues in My Orbital Simulation?
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Graduate What Happens to Gravity in a Collapsing Universe?
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Graduate How Does Redshift Affect Photon Energy Conservation for Comoving Observers?
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Mystery of the Bright "Star" - Did You Spot It?
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Undergrad Calculating distance using absolute and apparent visual magnitudes
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Graduate Could Black Hole Matter Challenge Our Understanding of the Universe?
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Graduate Question regarding pre-bigbang detection.
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Graduate Hubbles vs. Dark Energy: Debunking the Mystery of Galaxy Expansion"
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Graduate A Giant Hole in space Well, I'll be a
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Undergrad Pulsar Particle Beams: Speed & Collisions
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Graduate Find radial velocity of star from orbiting body
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Undergrad Where are the starting points for measuring celestial coordinates?
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Undergrad Formation of the Sun: How Did Hydrogen & Helium Form the Core?
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Undergrad What is the relationship between temperature and redshift?
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Undergrad Launch Loop to Space: Questions & Answers
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Undergrad GPS - Doubt regarding RMC speed value in NMEA files
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Graduate Can black holes absorb gravity waves?
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Graduate Orbital transfers and escape velocity: relationship
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Undergrad Reaching Alpha Centauri in human lifetime
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Graduate Is the Universe Really Expanding or Just a Local Phenomenon?
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Graduate Can a Big Crunch Happen in an Open Universe?
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Graduate Finding a Natural Frame of Reference on the Cosmic Scale
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Graduate Distances contract as a result of motion?
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Undergrad Can Absolute Velocity be Measured with Cosmic Background Radiation?
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Graduate Solving Kepler's Problem: Awkward Integration
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Graduate Is Dark Matter Really Just Dark Gravity?
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Graduate Is There An Age Problem In The Early LCDM Model?
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Graduate Understanding White Dwarf Temperature
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Stargazing Buying a beginner pair of binoculars
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Graduate Collapsing and expanding shell theorem
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Graduate Titan - Exposed to large amounts of Oxygen
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High School Mysterious Lunar Ring in the French Alps
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Graduate Gravitational motion transitions into universal expansion over distance
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Undergrad Understanding Motion in Space Calculations
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Graduate 3 Planets converging on Leo Constellation
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Graduate How Do Black Holes Influence Time and Matter in Our Universe?
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Undergrad Solar declination / solar panel array design
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Stargazing Need advice on telescope for astrophotography
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Graduate Please explain the Big Bang and universal expansion
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Undergrad Space Boundaries: Is There Such a Thing?
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High School The universe is expanding. Into what ?
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Graduate Magnitude vs Redshift Supernova 1a
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Graduate How Does Time Behave Near a Black Hole?
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High School When does the Sun sets down at 71°11'
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Graduate Is the Conventional Wisdom About the Universe Wrong?
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Undergrad How is it that the sun affects our tides?
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Graduate Spiral and Disk Galaxies are controlled by single parameter. What and How?
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Graduate Space expansion on smaller scales
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Undergrad Can a Planet Leave Its Orbit Without External Forces?
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Graduate Newtonian mechanics & Oort Cloud Shell
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Graduate If the universe is expanding more rapidly now
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Question about black holes and white dwarf
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Graduate What Happens When a Black Hole Meets an Anti-Black Hole?
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High School Sun's Magnetic Pole Reversal & Current Location: North or South?
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Stargazing Moon Illusion to Supersize Saturday Lunar Eclipse
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Graduate The Missing Baryon Problem & Baryonic Tuller-Fisher
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Undergrad Does Einstein's Theory of Relativity Predict Dark Matter?
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Undergrad Do massive objects in space act as gyroscopes?
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High School Is the Universe Really Expanding?
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Graduate What if all Dark Matter searches like CDMS II remain negative?
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Graduate What Can We Expect for ADG in a Building Like This?
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