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 Where's the energy go for planets axis inclined from orbital plane?
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Undergrad How Kepler derived that T^2 is proportional to r^3
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Graduate Can Galaxies Have Two Nuclei Without Merging?
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High School Odds of Finding Alien Life: An Exploration
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Graduate Unraveling the Mystery of Dark Matter and Its Relationship with Black Holes
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Graduate Does dark matter fall into a black hole, and create radiation
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Undergrad How Much Longer Does an Atomic Clock Run on the Moon Compared to Earth?
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High School Explain Kepler's 3rd Law of Planetary Motion
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Graduate Orbit of planet have to be a conic section
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Undergrad Could a bullet shot from a spaceship orbiting Earth escape the planet?
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Undergrad Why Do Physicists Consider Black Holes Something?
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Are the Wonders of the Universe waiting to be discovered?
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High School Why planets move ant-clockwise direction
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Graduate Can a 1kg Black Hole Be Manipulated and Moved?
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Undergrad Does Time have a mathematical equation or Law?
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Undergrad Space Junk Removal: Is Laser Technology the Answer?
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High School Are Stars Limited to Galaxies or Can They Exist in Intergalactic Space?
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High School What can I do if I study astrophysics?
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Stargazing What's a good, affordable telescope for someone who's never owned one
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Undergrad How Does the Angle of Impact Affect the Depth of Meteorite Craters?
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Graduate How is it possible the universe is infinite?
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Graduate Can anyone please suggest me a project topic?
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Graduate Objects as L3 and L4 at once - possible?
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Is life on other planets limited by the elements present?
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What Are the Dangers of Space Travel?
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Its crazy to think its all actually out there
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Darkness-Free Day: A Sign of Jesus's Birth?
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High School Physics Projects for Teenagers - Charles's Quest
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Graduate What is the Definition of the Wave Zone in Potential Calculations?
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High School Easter dating spreadsheet for Excel/OpenOffice
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Undergrad The Doppler Effect: Near and Far Galaxies
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Graduate Required mass for hydrogen burning in stars
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Stargazing Telescope Limitations: What to Know
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Graduate What Happens If an Object Exceeds the Speed of Light?
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High School Distance to the Moon: NASA's Measurements and Findings
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Graduate Does Our Solar System's Orbit Through the Galaxy Cause Magnetic Pole Reversals?
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High School What are Supernovae and Hypernovae? Any resources or insights?
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Undergrad Calculating Mass-Kepler's 3rd Law
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Graduate Black Hole Mass Accretion Temperature
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Undergrad Black Holes and Gravity: Answers to Your Questions
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Stargazing Zhumell Z8 Dobsonian. 8 inch reflector
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Graduate Astronomy in UV and X-ray Spectrum
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Undergrad Transition A produces light with a wavelength of 400 nm
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Graduate How Can I Calculate the Distance of an Object in an Elliptical Orbit Over Time?
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Undergrad Using a straw in a space capsule
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Undergrad Understand Phase-Space Density: Basics & Concepts
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Graduate I got a question about dark energy
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Undergrad Astrophysics Reading Suggestions for College Students
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Graduate How Do High Redshift Galaxies Differ from Low Redshift Galaxies?
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Graduate Dark Matter Halo: Modeling Rotational Effect on Galaxy V(r)
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Graduate Does Light Mass Increase a Black Hole?
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Graduate Antimatter Universe: Same or Different?
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Undergrad Gravity and the Formation of Stars
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Graduate How do branching ratios affect neutrino fluxes at Earth?
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Graduate Psr b1913+16: Impact of Periastron Epoch Change on Orbital Period Rate
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Graduate If wormholes connect two areas in spacetime, wouldn't that require 5
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Graduate Mechanism for Gammaray Bursts (computer sim shows neutron star merger works)
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Graduate Can You See a Parallel Universe Through a Black Hole?
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Undergrad Pyramids = were they pointing at supernova?
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High School Uncovering the Truth About Planet X: Debunking Myths from a Renowned Astronomer
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Undergrad Uncovering the Mystery: The Science Behind White Light and the Sun's Spectrum
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Undergrad After Supernova: What Happens Next?
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Graduate Escaping Black Holes: Questions & Answers
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Graduate Why artificial gravity is not possible?
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Graduate Creating an Artificial Supernova
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Graduate Understanding Boltzman Equation: Probability of Energy in an Ideal Gas
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Stargazing Will Ultra Advanced Telescopes Enable Real-Time Planetary Surface Imaging?
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Undergrad Could a life made of antimatter interact with a life made of matter?
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Graduate Are Black Holes Matter Sprinklers?
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Graduate Destroy a World: Methods & Energy Requirements
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Stargazing Pleasure of owning a telescope a telescope
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Graduate Plutonium - the last ironic trace of civilization?
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High School The Universal Gravitational Constant G
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Graduate What fields have the hardest papers to read?
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Does the Supermoon Look Different Depending on Geographical Location?
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Graduate Orbital elements within a gravity simulator problem
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Graduate Milankovitch 100,000 years cycle problem
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Graduate Could Heat Radiation Solve the Pioneer Anomaly?
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Graduate YAGQ (Yet Another Gravity Query)
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Graduate The True Nature of Hawking Radiation
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High School Is our sun part of a star cluster?
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Graduate Mean Equinox J2000.0: Confirm Ecliptic Plane Intersection
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Undergrad Cold Welding: Can Asteroids Fuse?
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Graduate Neutron Star vs Earth - Effects of a Collision
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Graduate What Do Epoch J2000.0 Orbital Elements Tell Us About Earth's Orbit?
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Undergrad Measuring Parallax Angle to the Method
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Undergrad Sky seen from a planet orbiting a star in intergalactic void
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Graduate Radio Astronomy Cold Load Question
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Undergrad Introduction and Questions about Asteroid Belt/Jovians
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Graduate Can Moons and Exoplanets Have Ring Systems?
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Undergrad The Basics Regarding : Planetary Orbits and Whatnot
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Undergrad How quickly did American researchers get data from Soviet probes like Venera?
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Undergrad Age of Universe: 13.7 Billion Years | How is it Calculated?
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High School Why Does the Milky Way Appear as a Streak in the Night Sky?
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Undergrad How Are Nebular Images Composed?
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Undergrad Approximating Ellipse Orbits with Newton's Law
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High School How did moluculair oxygen devoleped on Mercury?
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Graduate Is 13 Billion Years Enough for Carbon Abundance in the Universe?
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Undergrad Why Don't Jet Airplanes Heat Up Like Probes Re-entering Earth's Atmosphere?
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Graduate How Do Supernovae Lead to Black Hole Formation?
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