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.
Graduate On the large-angle anomalies of the microwave sky
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Graduate Orbit smulation and speed of gravitation
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Undergrad What is the Chandrashekhar Limit and How is it Calculated?
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Undergrad How closely could the Moon orbit the Earth
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Undergrad Free Graphing Software for Polar Coordinates & Irreducable Functions
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Graduate Galactic Formation: The Last Galaxy and the Ongoing Creation Process
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High School How Our Place in the Galaxy Affects Life on Earth
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Graduate Who was John Bahcall and what impact did he have on the astrophysics community?
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High School Telescope Recommendations for Viewing Galaxies & Nebulae in FL
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Graduate Black Holes & Universes: Theory & Discussion
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Graduate Dark Matter CEUs: Katherine Freese's State of the Union Address
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Stargazing 14mm reflector with a 900mm focal length
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High School Question: Mnemonic for classes of stars
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Graduate What is the White Hole Model of the Universe?
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Graduate Is Light's Terminal Velocity 300,000 km/s?
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Graduate Theoretical Physics: Lee Smolin's "The Life of the Cosmos"
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Is the Milky Way Actually a Barred Spiral?
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Graduate Is the overall charge of the universe positive, negative, or neutral?
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Graduate Gamma Ray Bursters: Explaining the Mystery 8 Billion Light Years Away
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Graduate Could Other Universes Exist in a Multiverse?
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Graduate Does the 3-body problem have stable solutions?
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High School Water ice in crater at Martian north pole
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High School What is the field of view of the Hubble Telescope's planetary camera?
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Stargazing Troubleshooting Telescope for Viewing Planets & Stars
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Graduate 10th Planet resonance with Neptune
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Where's SpaceTiger? Summer Vacation Update
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Graduate What is shot noise and how is it estimated in galaxy surveys?
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High School Three dimension space and one dimension time means
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Perseids a wash-out here :grumpy:
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High School The path of our planetary bodies
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Graduate Maximizing Velocity Excess: The Power of Perihelion Gravity Assists
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High School What is the fundamental reason for the elliptical shape of orbits?
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High School Why Do Planets Rotate Around the Sun Without Crashing?
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Undergrad Law of Two Bodies: Smaller Body Breaks Up
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High School What is the Newly Discovered Dwarf Planet Beyond Pluto?
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Stargazing Trouble Using Meade 2114 ATTS Reflector
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Recent Photos & Data of Martian Moons Phobos & Deimos
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Which astrophysical journal is the best?
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Stargazing Buying a New Telescope and would like some input.
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FYI - online petition to keep Voyager & Hubble programs going
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Planetary Alignment on my Date of Birth
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Graduate Big Bang Implosion: The Symmetry of Cosmic Expansion and Collapse
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Graduate The fine tuning problem (all 120 OOM of it)
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Could Self-Replicating Probes Revolutionize Interstellar Exploration?
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Graduate Dear Phobos, Janus, and Self Adjoint
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Undergrad How Did the Michelson-Morley Experiment Challenge the Existence of Aether?
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Graduate Mass not intrinsic, but emergent.
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Stargazing Can the Arecibo Radio Telescope Eavesdrop on the Entire Galaxy?
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Graduate Can You Imagine a Universe Without Space and Time?
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Graduate Can No Movement FTL Travel Revolutionize Space Travel?
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Undergrad Would a black hole be able to suck-in another blackhole?
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Graduate Is the Universe an Infinite Regression of Black Holes?
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Graduate How Do Stellar Winds Impact the Elemental Composition of Planets?
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Graduate Dark matters seems unlikely to succeed
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Undergrad How Old Are Third Generation Stars
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Graduate Is Dark Matter a Macroscopic Manifestation of Quantum Hidden Variables?
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Graduate Is Centripetal Acceleration Relevant in Curved Space-Time?
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High School Meaning of Planet? Just 8 planets?
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Undergrad Uneven Cratering of Moon's Surface
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Stargazing Views on schimdt Cassegrain telescopes
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Undergrad Cosmology Simulations' softwares
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Graduate Are Intermediate Mass Black Holes from Population III Stars?
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Graduate Pulsars with irregular periodicity radiation
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Undergrad Planet discovered in 3-star system
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Graduate Gyroscopic Space-Drive: How Does It Work?
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Graduate Universal Expansion: Faster Than Light?
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Colonization Of The Milky Way Inevitable
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A small test for your astronomic study IQ
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Graduate Did time and space exist before the Big Bang?
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Graduate Is 10K Resolution Possible for Faster-Than-Light Transmissions?
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Kennedy Space Center Hours?
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Graduate Are Wormholes Possible? How Far From a Possibility Are They?
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Is Teleportation Really Possible?
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Graduate Why does gravity play a role in the energy of the universe?
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Seeing Mars as a Full Moon: A Hoax?
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High School The relation between the bermuda triangle and black holes
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Graduate Polarization of quasar emissions
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Stargazing A telescope orbiting an outer planet?
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Graduate Comparison of the Mainstream and the Self Creation Freely Coasting models
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Undergrad Does Space Have Mass to Support Swirling Galaxies?
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Graduate Nucleosynthesis of PopIII Core Collapse Supernovae
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Graduate Neutrino scalar waves travel back and forwards in time
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Graduate Do scientists think black holes have singularities
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High School Can a Black Hole create Supernova?
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Graduate Where Do Black Hole Singularities Send All the Matter They Consume?
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Graduate Where has all the information gone
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Graduate Should We Be Worried About Gravitational Waves?
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High School What do we see first?What Do We See First: The Sun or the Light?
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Graduate Are New Ideas Important in Physics and Astronomy?
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Graduate Understanding the Extended Kalman Filter
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Graduate How Does the Shape of the Milky Way's Dark Halo Influence the 511 keV Line?
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Undergrad How big can red supergiants get and can they be born at that size?
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Graduate Ptolemy's Shadows: Examining Our Astronomical Perception of Time
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Graduate Expanding Universe + Rotation - Lost it somewhere
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Stargazing Want to see an incredible solar corona photo?
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Undergrad Where do Compton Recoil Electrons come from?
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High School What is the Earth's magnetic field and how does it protect us from space debris?
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Graduate Problem of process noise of satellite orbit determination
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Stargazing Which Telescope Should My School Purchase for Our New Observatory?
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Undergrad Explaining the Bands on the Gas Giants: A Combination of Heat and Rotation
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