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 Big Bang or Big Bounce: Which Theory Explains Our Universe Better?
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Undergrad Can Time Travel Alter Our Perception of Reality?
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Graduate What happens to matter falling into a black hole?
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Graduate Strange Quarks, Quark Stars, & Black Holes
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Graduate Universe smaller than wavelengths?
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Graduate Infinite universe filled with uniform dust
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Graduate How Does Heisenberg's Uncertainty Principle Relate to the Big Bang?
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Graduate Could Savant Minds Unlock New Insights in Physics?
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Graduate Modeling Light Geodesics in FLWR Metric: Trajectory and Convergence Analysis
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Stargazing Buy Telescope: Tips for Amateurs
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Graduate Can the Universe Cause Itself to Exist from a Physics Perspective?
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Undergrad Research Topics for B.Tech Mech Engg @ ISM Dhanbad
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Graduate How Vast Is the Universe Beyond 50 Giga Light Years?
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Undergrad An explanation for the apparent gradient of tidal amplitude with latitude?
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Graduate Don't even know which question to ask first
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Graduate Practical possibility of Hawking radiation?
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High School Universal Gravitation: Does It Apply to Every Particle in the Universe?
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Graduate What Mysteries Lie Beyond Planck Time After the Big Bang?
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Undergrad Does the center of the galaxy always appear brighter than the rest?
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Undergrad L1 Lagrangian Point: SOHO & ACE Time + Human Mission Possibility
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High School Does the strength of tides change between new moon and full moon?
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Graduate Understanding the Rayleigh-Jeans Approximation: Where Does the Negative Sign Go?
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Graduate Why did dark matter surprise us?
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Graduate Uncovering the Mysteries of Gravity: The Effects of a Disappearing Sun
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Graduate What Gave Mass to Particles After the Big Bang?
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Undergrad Hello Can someone tell me what sources in the Universe produce
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Graduate Susskind's story doesn't match Krauss'?
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Graduate How Can We See Light from the Early Universe?
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Undergrad How Are Declination and Right Ascension Measured in the Celestial Sphere?
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Graduate What is the total energy of the universe?
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Graduate Inflation Theory: Could There Be Other Bubble Universes?
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Undergrad Star populations by spectral classes and masses
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Undergrad Star generatations making elements
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Undergrad What Are Some Math-Focused Astrophysics Thesis Ideas?
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High School How did we photograph the universe?
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Undergrad Simplified LaGrange Point Calculation
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Graduate Exponential expansion and Hubble constant
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Graduate Can We Create Artificial Black Holes? | About Blackholes
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Graduate Confused about implications of flat universe
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Graduate Is Earth the center of the universe?
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Graduate Dark Matter and Gravity: Misunderstood Connections?
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Graduate Earth-Sun Vector, Ecliptic to Equatorial Coordinates
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Graduate Can we ever truly understand the concept of infinite speed?
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Graduate Age of Universe: Impact of Expanding Acceleration?
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Undergrad Megasuns containing helium and hydrogen that were huge
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Graduate Sibling Universes: Math Rules in Twin & Non-Twin Worlds?
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Stargazing Uncovering the Truth Behind Solar Eclipse Anomalies
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Graduate Proportion of dark energy and dark matter
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Graduate Information is a kind of dimension (like space and time)
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Undergrad COBE satelite strongest evidence of the big bang ?
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Graduate Three-Body Problem Problem ( Astronomers )
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Graduate Measuring dark matter's repulsive force
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Graduate Gravitational lensing angle equation
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Graduate Supernovae Wind Shape Small Galaxies: Governato et al.
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High School What do you mean by 'multi-dimensional'?
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Graduate Expansion redshift VS gravitational redshift?
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Undergrad Why Is the Search for Extrasolar Planets Crucial for Humanity?
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Graduate General Relativity and galactic rotational speeds
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High School Compare Images of 7x50, 15x70 & 25x100 Binoculars Pointed at Objects in Space
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Stargazing Solar eclipse and radiation levels
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The Known Universe Scientifically Rendered For All to See (by AMNH)
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Graduate Confused about cmb decoupling/recombination
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Undergrad Directing Space Junk to the Moon: Feasibility & Benefits
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Graduate Is the Expansion of the Universe Making Galaxies Harder to See?
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Stargazing Solar Eclipse Captured - See Photos & Video of My 3.2MP Camera
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High School Hubble's Staircase Effect: What Caused It and How Was It Fixed?
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Undergrad The firmament is not as we see it, but
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Graduate Do Pulsars Emit a Sonic Boom in Space?
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Graduate Mass of star as function of Luminosity, Temperature and size
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Graduate Light speed and gravitational matrix
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High School Which Would Reach Pluto First: Light or Stick Movement?
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Mysterious Martian 'Forests' Discovered
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Graduate Is a Giant Moon Essential for Life on Earth?
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Undergrad Is Earth's Distance from the Sun the Key to Life on Our Planet?
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Graduate Debunking the Expanding Universe Theory: Examining Observations and Redshifts
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High School The Moon moves away from the earth - Is the theory correct ?
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Undergrad Could This Be a Nova or Supernova Seen on Dec 26?
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Graduate Yes, that is correct. Thank you for pointing that out.
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Graduate The nature of the universe as interpreted quantum information
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Graduate Dark Matter Spin: Is WIMP DM Different?
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Aurora borealis over India is it possible?
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Graduate Does Universe Pulse? Theory or Naive Guess?
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Graduate The speed of sound of the inflaton field
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What Happens if Gamma Ray Bursts Hit Earth's Ozone?
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Graduate Some questions mostly dealing with large objects in space.
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High School Is mathematics the same in other universes?
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Graduate Matter density in closed/open universe
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Graduate How does a collapsing core become a black hole?
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Graduate How Do We Know the Cosmic Microwave Background Radiation Isn't Local?
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Graduate Magnetic diffusivity : significance?
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Graduate Singularities, dark matter, and dark energy. A connection?
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High School Question: what exactly is a singularity?
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Graduate Using stars random distribution to determine presence of gravity
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Graduate Are Spiral Galaxies Truly Spirals or Just an Optical Illusion?
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Undergrad Questions about Black Holes: Can Objects Survive? Can Light Go Through?
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Graduate Does the Big Bang Model Support Instantaneous Inflation in an Infinite Universe?
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Graduate Orbital period decay and gravitational waves
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Graduate Space Elevator: Carbon Nanotubes, Lasers & Beamed Energy
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Undergrad Converting Intensity into magnitudes
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Graduate What is the relationship between information and consciousness in the universe?
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