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 Brown Dwarf Mass Gain: Does Radius Increase?
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High School Thank you for understanding. Have a great day!
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Undergrad Is Dark Matter Really a Cold, Collisionless Fluid?
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High School Are Deep Space Objects Still There?
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Undergrad BAO : Relation between redshift, Hubble constant and radial
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Undergrad Radial dependence of the Sun's magnetic field
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Undergrad Would going to the Moon delay going to Mars?
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High School Are all wavelengths of light possible?
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Undergrad Will Space Expansion Lead to the Formation of Black Holes and Neutron Stars?
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Insights Either the Sun Is Getting Smaller or Gravity Is Getting Weaker
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Undergrad What problems would 'black holes' not being formed solve?
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Graduate Solving WIMP & Dark Matter Equation
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Undergrad If all of spacetime was created with the Big Bang....
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Undergrad Why are there so many different kinds of stars?
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High School What Secrets Does the Color of Space Hold and How Does Space Travel Work?
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High School What can be used to propel something in space without fuel?
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Graduate Penrose: CCC predicts BICEP2 B-modes due to void magnetic fields, correlated to CMB Hawking Points
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High School How Long After the Big Bang Did Life First Emerge?
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Undergrad Is There a Model to Define Earth's Position in the Milky Way?
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Graduate Decoding Hubble Data: Acceleration and Age of the Universe
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Undergrad Time Since Big Bang: One Moment Everywhere?
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Graduate Phase Space and Its Use in Monte Carlo Simulations of Radiation Beams
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Stargazing Phase of radio waves received by a radio telescope dish
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High School Why don't high mass stars expand and cool?
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Undergrad Trying to reproduce curves with angle of CMB anisotropies
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Undergrad Hawking points discovered in CMB
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High School Why will Betelgeuse go supernova?
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High School Demystifying the Hubble Constant
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High School Is Our Universe a Causal Patch Stretched by Inflation?
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Undergrad Hawking Radiation and the Negative Energy Particle
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High School Mars Water: The Truth Behind Its Blue Color and Recent Discovery Revealed
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Undergrad Would Newton's shell theorem prevent binary planet systems?
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High School Planet Nine race, how is it going?
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Graduate Multiverse theory with impossible universes?
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High School Is Earths' potential of 0 volts valid throught the Universe?
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Graduate CMBR anisotropy and cosmic abundances
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High School Eta Carinae Is Farther Than You Thought: 8,500 Light-Years
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Undergrad A discussion on "officially called a planet"
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Undergrad Troubles understanding slow-roll conditions in Inflation
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Undergrad Dark matter "halo" is a "flattened disk" ?
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Graduate Why Does the Core of Certain Chromospheric Lines Appear in Emission in Sunspots?
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High School Our universe's entropy/size vs Bekenstein's theory
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High School Is There a Model That Includes Infinite Space and Finite Matter in Our Universe?
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Undergrad Harmonic Convergence of Major Planets: Exploring the Solar System Barycenter
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High School How Do You Determine the Sun's Coordinates?
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High School A Question Concerning Lunar Eclipses and Aristarchus's Work
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High School Was the Big Bang simply "Distant Traffic"?
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Stargazing The Moon through my El Crapo Telescope
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Undergrad Least cost to get a self-sustaining space infrastructure
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High School Is our 3D universe a shadow of a 4D Universe?
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High School Neutron Star Collisions: Creation of Heavy Elements and Their Fate
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Undergrad Could entropy remain the same overall?
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Undergrad Do orbital dynamics scale linearly?
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Undergrad Why does the expanding universe redshift light?
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Undergrad Composition of the Sun: How We Know via Spectral Absorption Lines
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Undergrad Can Relativity Be Confirmed Again with a Star and a Black Hole?
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High School A Singularity in Semi-Classical physics too?
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Undergrad Neptune images from VLT better than Hubble
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High School How do we know that the universe is still expanding
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High School Saturn's Rings Appearance from Saturn?
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High School Attention: We have an important announcement from our Sun
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High School General theory of relativity&Planet orbits
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Undergrad Liquid water reservoir reported under Mars polar cap
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Undergrad Which Main Sequence Stars Experience Hot Corona Phenomena Beyond G2?
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Undergrad Thoughts on Breakthrough Starshot?
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High School Discussing Sterile Neutrino Candidacy as Dark Matter
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Graduate Do any coordinate systems include self magnification?
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Graduate What is primordial non gaussianity?
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Undergrad Why is the Moon getting further from Earth ?
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Stargazing Help with how to start Stargazing
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Undergrad How do telescopes allow us to see light sources millions of light years away?
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Undergrad Spherical Symmetry/Simultaneity of Supernova Explosions
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Undergrad Is Dark Matter Really Necessary in Our Understanding of the Universe?
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High School NYTimes: 79 Moons of Jupiter and Counting
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Undergrad Redshift and the Friedmann metric
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High School Are Antiparticles the Key to Understanding the Universe?
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High School Blazar as the Source of Cosmic Neutrinos Confirmed
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Undergrad Big Bang Singularity vs Black Hole Singularities
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Undergrad White dwarf collapses into a neutron star and Energy is released
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High School Known properties and constraints of dark matter
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Graduate Energy conservation on Cosmological scales
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Undergrad Chemical Elements produced inside the Sun
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Undergrad Could the original size of the Universe be the Planck length
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High School The Stefan-Boltzmann Law and Sunspots
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Undergrad Convincing a Flat Earther: Proving the Earth is Spherical
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Graduate How Does a Decreasing Higgs Field Influence the Evolution of the Universe?
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Undergrad Space elevator and Coriolis force
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Undergrad Mass Equivalence of Photon Content Inside the Sun?
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High School Gravitational waves and refraction patterns....
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High School What Causes the Phenomenon of Cosmic Inflation?
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Graduate Zero-Energy Universe: Stephen Hawking Explains
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High School What is the gravitational force like near a black hole?
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Undergrad False vacuum and matter density
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Undergrad Understanding the Ly-α Forest for EnSlavingBlair
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Undergrad Image of a Newly Formed Planet in a Disk Around a Star
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Undergrad Particle acceleration and kinetic energy
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Stargazing Achieving Better Astrophotography at Home
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Graduate Is there a reason the Big Bang would be secret?
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Graduate Is the Universe a Self-Similar Tesselation?
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Graduate What are the frontiers of cosmology research?
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