Astronomy and Astrophysics Forum

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Join in expert discussion on the topics of Astronomy and astrophysics. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
Stargazing Is it a true explanation of an aberration of starlight?
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B Can a solar sail be accelerated 20% speed of light
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B What fueled the Big Bang explosion?
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Stargazing [just for fun] Planet Definition
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B Would a manned flyby of Ceres be easier than a mars landing?
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B Could Current Technology Enable a Manned Mission to Europa?
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B Surface Temperatures - White Dwarf vs Neutron Star
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Stargazing А neutron star and a photon sphere
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B How long would remains be detectable?
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I Could ice exist in Lunar lava tubes?
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B Our atmosphere and the rotating Earth
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I Why do quantum physicists claim that particles can tunnel out of a quantum well?
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B Space news and events aggregator app
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I Dark Matter Particles: College Student Seeking Theorem Evidence
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B Seeing Venus with the Naked Eye - Light Pollution
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A How Does Dark Matter Affect Galaxy Motion and Formation?
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Stargazing What is the best way to reduce overexposure in DSLR astrophotos?
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B Top 3 brighest planets as seen from other planets
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B Arecibo Message: Will It Be Received 25,000 Years Later?
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Stargazing Understanding Star Formation: Triggering and Transformation Explained
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I Quasars & Redshifts: Measuring Redshifts & Jet Formation
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B Geology of Ceres illuminates origin of organics
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Stargazing Can Venus be seen during the day from sea level right now?
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I Does Star's Mass Loss Challenge the Concept of Dark Energy?
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B Finding the distance of two points from observer
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B How can we find the curvature of a star or planet?
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B What part of the Moon am I looking at?
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Stargazing Expanding Universe: A New Theory on Dark Energy, Black Holes & More
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B Could neutrinos be the key to successful SETI communication?
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I What's the Latest on Fast Radio Bursts?
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I Calculating planet's radius using a star's luminosity
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B In how many years will the surface of the Sun be 75 degrees Fahrenheit?
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I Does the Debye Length Change with Applied Potential Strength in a Plasma?
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B Comets, Water & the Sun: Investigating Earth's Origins
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I Requirements for a breathable atmosphere
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B Can a photon be made energetic enough to escape a black hole
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I Why is there no "mid-Atlantic ridge" on other planets?
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B Can Dark Matter Explain Black Holes and the Mysterious Planet-Nine?
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B How Difficult Will It Be to Remove Mars from the Planetary Protection Treaty?
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Stargazing Exposures & Stacking for DSLR Sky Photos
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B Why does Sirius A blink in many colors?
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B Everything is in motion, what is not?
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B Can Planets Thrive in Binary Star Systems?
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A What keeps Rhea stable? Simulation shows Titan-assist escape
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B Formation of Stars: Questions on Range & Equilibrium
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Stargazing The Sun from Pluto: Visibility & Brightness
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A Another detection of the 3.5 KeV line
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B Is this Saturn photo real or an artist's rendition?
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I What is the Dipole Repeller and How Does it Affect Our Galaxy's Motion?
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I How can I have an image in space that I cannot reach out and feel with my hand?
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B Could Jet Engines Be Used for Space Travel?
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B Where Can I Find a Barycentric Solar System Ephemeris?
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B Visibility of Ceres, Uranus, and Neptune with $60 binoculars
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B What Color Are Asteroids? Classification and Composition Explained
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I Level of unseen elastic scatterings
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Stargazing Formulas for camera obscura (correct sub forum?)
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I Is proton decay considered in neutron star models (and LHC)?
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B On the post-main-sequence evolution
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B Is the universe expanding faster than expected
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B Types of Supernovae: Explanations & Differences
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A Lyman-alpha forest: why not Lyman-beta?
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A Understanding the Relationship Between Inflation and Quantum Fluctuations
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B Transit of newly discovered exoplanet of Proxima centuri
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I What would it take to hear the Sun's sound from Earth?
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B What is the heaviest element that a star will fuse?
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B What would happen if the Moon wasn't there?
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B How does Ram pressure kill galaxies
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A Is linear polarization not expected from an astrophysical maser
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B Speed of light within a black hole
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A Throwing gravity and dark energy in the same basket
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B Venus -- a more attractive target than Mars for human colonization?
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Are There Constellations with Stars Close to Each Other?
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I Particle distribution as a function of radius in astrophysics
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Stargazing What sort of camera would you use?
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I Constraints on Dark Matter in the Solar System
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I Can Spacetime be a Reference Frame?
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I Why is the DM density near the sun so small?
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I How to know what proposal to write for observation?
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B Is the Universe Inside a Black Hole?
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B Is the Big Bang Just an Event in an Existing Space/Time Fabric?
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I Growing food in space - a 3rd concept
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B Relating Gravitational Field Strength and Mass
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B How would I calculate how much light is being bent in a certain area?
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B Top 3 candidates in our solar system to host microbial life from Earth
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I Which is better to colonize: Mars, the Moon, or Deimos?
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B Why do black holes have infinite density, mass, and gravity?
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Human Implications of Space Travel: A Psychological Exploration
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A Chandrasekhar Mass - White Dwarf
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B Keeping Time on Mars: A New Calendar System?
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B Hot Jupiters & Kepler's Laws: Does it Violate?
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B Is Our Brain Limiting Our Understanding of the Universe?
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I A multiple-impact origin for the Moon
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Can white dwarfs have iron cores?
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I Structure of Earth, pressure and density model
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I What Is the True Nature of Dark Matter?
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I Is the Strange Star's Composition Similar to a Bose-Einstein Condensate?
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Earth vs. Space Research: Which One Holds More Importance for Humanity?
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B New star in the skies -- Plausible?
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B Problems With a Terraformed Moon -- Maybe?
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I Can Black Holes Explain the Mystery of Dark Matter in the Universe?
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