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.
Undergrad Effect of rotational inertia on gravity or visa versa
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High School Cepheid variable stars cause of light variance
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High School If something stands absolutely still in the space can it time travel?
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High School Why Do Hot Stars Like Zeta Puppis Appear Blue Despite Low Wavelengths?
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Undergrad Interstellar travel/centrifugal couching
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High School What is seen from the farthest star?
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High School How can the Universe grow if it is infinite?
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Undergrad Find the Age of the Universe when Matter and Radiation densities were equal
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High School Generating Plausible Star Systems
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High School How can I conceptualise light and the known universe
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Stargazing Trig Parallax: Measurement & Apparent Shift of Nearby Stars
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High School Infinite vs Expanding Universe: A Physics Conundrum Explained
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Undergrad Is there any international astronomy competitions for adults
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High School E=0. What Does That Mean for the Seasons?
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Stargazing Are there astronomy competitions?
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Stargazing Is it a true explanation of an aberration of starlight?
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High School Can a solar sail be accelerated 20% speed of light
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High School What fueled the Big Bang explosion?
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Stargazing [just for fun] Planet Definition
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High School Would a manned flyby of Ceres be easier than a mars landing?
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High School Could Current Technology Enable a Manned Mission to Europa?
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High School Surface Temperatures - White Dwarf vs Neutron Star
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Stargazing А neutron star and a photon sphere
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High School How long would remains be detectable?
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Undergrad Could ice exist in Lunar lava tubes?
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High School Our atmosphere and the rotating Earth
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Undergrad Why do quantum physicists claim that particles can tunnel out of a quantum well?
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High School Space news and events aggregator app
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Undergrad Dark Matter Particles: College Student Seeking Theorem Evidence
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High School Seeing Venus with the Naked Eye - Light Pollution
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Graduate 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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High School Top 3 brighest planets as seen from other planets
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High School 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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Undergrad Quasars & Redshifts: Measuring Redshifts & Jet Formation
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High School 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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Undergrad Does Star's Mass Loss Challenge the Concept of Dark Energy?
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High School Finding the distance of two points from observer
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High School Challenging the Existence of Black Holes: A Critical Analysis of Recent Research
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High School How can we find the curvature of a star or planet?
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High School 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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High School Could neutrinos be the key to successful SETI communication?
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Undergrad What's the Latest on Fast Radio Bursts?
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Undergrad Calculating planet's radius using a star's luminosity
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High School In how many years will the surface of the Sun be 75 degrees Fahrenheit?
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Undergrad Does the Debye Length Change with Applied Potential Strength in a Plasma?
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High School Comets, Water & the Sun: Investigating Earth's Origins
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Undergrad Requirements for a breathable atmosphere
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High School Can a photon be made energetic enough to escape a black hole
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Undergrad Why is there no "mid-Atlantic ridge" on other planets?
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High School Can Dark Matter Explain Black Holes and the Mysterious Planet-Nine?
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High School 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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High School Why does Sirius A blink in many colors?
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High School Everything is in motion, what is not?
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High School Can Planets Thrive in Binary Star Systems?
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Graduate What keeps Rhea stable? Simulation shows Titan-assist escape
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High School Formation of Stars: Questions on Range & Equilibrium
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Stargazing The Sun from Pluto: Visibility & Brightness
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Graduate Another detection of the 3.5 KeV line
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High School Is this Saturn photo real or an artist's rendition?
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Undergrad What is the Dipole Repeller and How Does it Affect Our Galaxy's Motion?
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Undergrad How can I have an image in space that I cannot reach out and feel with my hand?
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High School Could Jet Engines Be Used for Space Travel?
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High School Where Can I Find a Barycentric Solar System Ephemeris?
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High School Visibility of Ceres, Uranus, and Neptune with $60 binoculars
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High School What Color Are Asteroids? Classification and Composition Explained
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Undergrad Level of unseen elastic scatterings
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Stargazing Formulas for camera obscura (correct sub forum?)
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Undergrad Is proton decay considered in neutron star models (and LHC)?
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High School On the post-main-sequence evolution
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High School Is the universe expanding faster than expected
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High School Types of Supernovae: Explanations & Differences
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Graduate Lyman-alpha forest: why not Lyman-beta?
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Graduate Understanding the Relationship Between Inflation and Quantum Fluctuations
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High School Transit of newly discovered exoplanet of Proxima centuri
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Undergrad What would it take to hear the Sun's sound from Earth?
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High School What is the heaviest element that a star will fuse?
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High School What would happen if the Moon wasn't there?
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High School How does Ram pressure kill galaxies
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Graduate Is linear polarization not expected from an astrophysical maser
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High School Speed of light within a black hole
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Graduate Throwing gravity and dark energy in the same basket
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High School Venus -- a more attractive target than Mars for human colonization?
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High School Are There Constellations with Stars Close to Each Other?
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Undergrad 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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Undergrad Constraints on Dark Matter in the Solar System
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Undergrad Can Spacetime be a Reference Frame?
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Undergrad Why is the DM density near the sun so small?
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Undergrad How to know what proposal to write for observation?
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High School Is the Universe Inside a Black Hole?
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High School Is the Big Bang Just an Event in an Existing Space/Time Fabric?
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Undergrad Growing food in space - a 3rd concept
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High School Relating Gravitational Field Strength and Mass
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High School How would I calculate how much light is being bent in a certain area?
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High School Top 3 candidates in our solar system to host microbial life from Earth
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