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 Astro Physics Project Ideas for my National Science Fair
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Graduate Accelerating Galaxies: Cosmology's Unanswered Questions
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Undergrad Could Anything Survive in the Habitable Zone Without a Host Star?
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High School What Do Milankovitch Cycles Reveal About Earth's Orbit?
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Graduate What will be the change in celestial coordinates in 50 years?
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Graduate Positing the Big Bang as a definitive theory .
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Graduate Is Space a Fluidic Medium?
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Graduate What is the 'fabric of the cosmos' and what drives its cosmic loom?
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Graduate The Ostrogradski instability and f(R) theory
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Undergrad Possibilities of Gravitational Pull in Space Travel
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Graduate Why spacetime quantization does not prevent blackhole formation?
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High School How does mercury exist in the Sun's presence.
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High School Is the Earth's Core Solid or Liquid?
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Graduate What Factors Influence the Redshift of Distant Galaxies Beyond Doppler Effects?
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Graduate No big bang, no beginning, and no end?
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Undergrad Changes to day length at solstices vs. equinoxes
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Graduate What sort of atmosphere could a rogue planet have?
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Graduate Is the Big Bang Similar to a Black Hole?
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Graduate Could the Big Bang Be a Result of Black Hole Cycles?
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Voyager Probes: Longevity in the Void of Interstellar Space
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Graduate The expansion of time, probably ad nauseum
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Is Earth the only planet fine-tuned for life?
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Graduate A possible Coasting Universe model vs ΛCDM
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Graduate Homogeneous/Inhomogeneous particle production
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Graduate Ripping apart baryons at the end of the universe creating new particles?
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Graduate Significance of the Huge-LQG for homogeneous universe
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Graduate Quantum gravity in astrophysics?
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Graduate Three-Body orbital simulation reference plane
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Graduate Complete solution of the ΛCDM model problems
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Graduate Question about the universe and a black hole
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Graduate Could this solar system have stable orbits.
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What is elegant about the universe?
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Graduate How Does Hawking Radiation Affect Black Hole Temperature?
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Graduate Virtual particle creation in black holes
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Graduate Questions on Big Bang Singularity
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Undergrad The Effects of Dumping Nuclear Waste into the Sun
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Graduate Question about Heliopause / radio noise
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Graduate Meaning of a Flat, Open, and Closed Universe
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Graduate The ultimate demise of the universe
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Graduate Why Was It Significant to Discover Black Hole Entropy and Temperature?
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Graduate Expansion Rate at the Big Bang: Uncovering the Role of Dark Matter
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High School Which materials would survive at near absolute zero, intact?
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High School Is Earth's Gravity Changing Day to Day?
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Undergrad Is a Matterless Universe Larger than One Filled with Matter?
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High School Question on the history of calculating the orbital of planets
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Graduate How Did Saturn's 2010 Storm Impact Its Atmosphere?
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Graduate What Is the Mathematical Form of Type Ia Supernovae Light Curves?
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Undergrad Old space information, relevant conclusions?
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Graduate What is the latest research on the Cosmic Neutrino Background?
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High School Is it possible to be completely still in space?
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Graduate New blackhole mass measuring method
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Graduate What is the calculational definition of the 'big bang'?
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Graduate How can the Universe be infinite and there be an infinite number of Universes?
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Graduate How is energy density calculated
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Graduate Rise of the Phoenix: DAMA/LIBRA Claims Detection of Dark Matter
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Graduate How big bodies can exist in outer Solar System?
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Graduate GRB Hypothesis for Terrestrial C14 and Be10 Spike
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Undergrad The future of Radio Astronomy (your thoughts)
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Graduate How to prove the stretching of space
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High School Why planets in the solar system lie almost in a plane
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Graduate What is the purpose of heterodyning in radio astronomy?
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Graduate Can Strong Magnetic Fields Push White Dwarfs Beyond the Chandrasekhar Limit?
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Undergrad Estimating the number of galaxies
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Undergrad Theories of the origins of the universe
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Graduate Tips for deriving the friedmann equations
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Graduate What is wrong with my theory about universe expanding.
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Graduate CMB Sphere Size: Distance & Diameter
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Undergrad No moon=no tides no tides=no life Is that entirely correct?
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Graduate What is the value of the cosmic gravitational potential?
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Undergrad How do inflation, and the zero energy flat universe tie into one another?
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Undergrad Conjuction of planets to Earth, it affects our weight?
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Graduate Estimates of galaxy numbers - re Herschel resuts
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Graduate Are Hawking's Equations for Black Hole Energy and Evaporation Time Flawed?
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Graduate What is the current status on MOND
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Graduate Hi there. Just looking at an astophysics journal article in which they
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Graduate Where does the energy vanish to when light is red shifted
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Undergrad A rudementary question on dark matter
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Graduate Chandrasekhar Limit: Neutron Star vs. Black Hole
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Graduate The observable universe, the actual uinverse, and CMB
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Graduate What causes the red-shift observed in distant galaxies?
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High School In essence how does time travel relate to space?
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Graduate How do the tidal forces warming moons theories hold when []
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Graduate Are Cosmic Strings Connected to Other Dimensions and Gravitons?
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Undergrad Light Years: Subjectivity and Distance Measurement
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Graduate Big Bang to Black Holes: Could We Predict It?
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Undergrad Big Bang theory vs. the universe as we know it
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Graduate I cant imagine the expanding universe in my head
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Graduate Is the event horizon of a black hole physical?
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High School Can the Sagittarius and Canis Major Dwarf Galaxies be Seen with the Naked Eye?
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Graduate Could a Variable Speed of Light Theory Challenge the FLRW Metric in Cosmology?
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Graduate Are Black Holes the Ultimate Cleaners of the Universe?
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Undergrad Could an ion engine attached to a satellite be used to stabilize orbit?
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High School Realistic space flight simulator iOS
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Graduate Primordial black holes as DM candidates
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High School Stars Rotation | What is Angular Momentum?
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Graduate Would Distant Galaxies Still Exist If Time Were Paused?
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Graduate Can dark matter form planets and dark matter life?
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Graduate Back and forward orbit [around gravitating objects]
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Undergrad Space Elevators -> US Transportation Infrastructure
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Graduate Universe expansion faster than light?
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