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 Conics and Beyond: Understanding Trajectories in Multiple Gravitational Fields
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Graduate Traces of Theia Found on The Moon
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What is your favourite episode of Cosmos: A Space-time Odyssey?
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High School Discover Mega-Earth: Kepler-10c 17x Heavier Than Earth
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Graduate Tidal Acceleration and planetary rotation
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New Cosmos: A Spacetime Odyssey 2014 TV Series
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Undergrad Understanding the Expanding Universe and Its Impact on Earth's Distant Future
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High School Is the fabric of space displaced by a mass object in it?
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Graduate Five Cepheids Detected on the Other Side of the Galaxy
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Graduate Need rebutal for plasma EU theory
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Graduate Could Supermassive Black Holes At The Center Of Galaxies Be Wormholes?
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Graduate How does a nebula form from a neutron star
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High School Is Saturn the Night Object in Photos?
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Undergrad Can dark energy be a different dark matter?
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Undergrad Detect planets in solar systems like ours
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High School What causes a supernova to occur?
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Graduate Solar Wind Modulates Lightning - Mechanism Unknown
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Undergrad Inverse square law explains Olbers' paradox?
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Graduate Superconductors and Space: Can Electricity Bend Reality?
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High School How does Andromeda look from just a set of 10x50 binoculars.
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Camelopardalis meteor shower (storm?) May 23/24
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Stargazing Telescope to see up close to nebulas and galaxies
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Nice general collection of high resolution astro images.
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Stargazing The What telescope are you using thread
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Can't actually see anything through the eye piece
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High School What would gravity be in these 2 conditions
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Graduate Recommendations for astrophysical simulation software.
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Stargazing Remote Telescopes for New or Old Astrophotographers
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Graduate Faith of Quantum Entanglement once it enters two different black holes
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Graduate New paper says universe not expanding - should it be taken seriously?
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Undergrad How to calculate absolute magnitude of a stellar body?
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Graduate Why does the furthest stars seem to be moving away faster than light?
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Graduate Are Flat, Coplanar Orbits Only Found in Spiral Galaxies?
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Stargazing Can a Simple 80x Telescope Reach Maximum Resolution?
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Undergrad Apparent Magnitude: Understanding Star X's Brightness
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Graduate Understanding Dark Matter: A Simple Explanation
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Graduate Dark matter and weighing galaxies
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Graduate Finding the mass of a super-massive Black Hole?
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Graduate Dark Matter Formation: Exploring Big Bang Theory
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High School Why do I see stars as a point in the sky?
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Graduate What Evidence Supports Sagittarius A* as a Supermassive Black Hole?
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Undergrad Amount of solar energy per day in a given location
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High School Are There Many Suns in the Universe? A Debate
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Graduate Establishing a Mutual Coordinate System for Interstellar Communication
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  • Poll Poll
Undergrad Are Black Holes Really Black or Just Colorless Void?
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Graduate Doppler Effect on Light: Understanding Blue Shift in Starlight & X-ray Formation
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Graduate Could Dark Matter Be A Property of Space?
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High School Jupiter: Gas Planet? Landing Possibility & Facts
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High School Why does the Sun appear to change color throughout the day?
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Undergrad Measuring Earth's Orbit: Methods and Distortions Explained
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Graduate Hubble's Law and Acceleration: Are Distant Objects Accelerating Away from Us?
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Undergrad What Are the Best Resources for Understanding Star Clusters?
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Can Pluto Regain Its Planetary Status by Cleaning Up Its Orbit?
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High School How Do Objects Hang in Outer Space?
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Graduate Sun can absorb almost 200,000 more Suns?
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Graduate Hawking Radiation and the Decay of Black Holes
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Graduate Could light explain dark energy?
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Stargazing Telescope that can easily be connected to a laptop
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Graduate A model of galactic star formation
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High School App/program that allows you to adjust spectrums of light?
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Graduate Does Interstellar Gas Affect Atmospheric Seeing in Ground-Based Observations?
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Graduate Is Our Universe a Black Hole?
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Graduate Radius of the smallest exoplanet detectable with the transit method
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Undergrad How do we find the exact temperature of a star/galaxy?
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May 5, 6 - Eta Aquarids Meteor Shower
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Undergrad Titan vs Earth: Hydrocarbons vs Water - Pros and Cons for Thriving Life Forms
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Graduate How could Einstein's theory contradict to the quantum mechanism?
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Graduate Number density/average distance relationship question
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Venus Jupiter and Moon Conjunction HD Timelapse
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Undergrad What Are Black Bodies & Why Are Stars Considered Them?
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Graduate Do contracting objects show red shift?
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Undergrad The Meaning of 'Proportion' in Richard Feynman's Views on the Universe
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Graduate First Hyper Velocity Star Cluster Observed
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Stargazing Expert Astrophotography Tips & Discussions | Share Your Photos!
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Stargazing What's Happening in the Night Sky? Upcoming Astronomy Events to Look Out For!
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Graduate Travelling to the edge of the Universe, 4th Dimensional Time Travel
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Graduate MOND : Help with fitting procedure
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How Fast Does Beta Pictoris b Spin?
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Graduate Can dark energy reveal absolute motion?
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Undergrad Could a planet get heavier without needing to grow in size?
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Undergrad How Is the Angular Diameter of Jupiter Measured and What Equipment Is Used?
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High School Radiation on Mars: Does it Lack a Magnetosphere?
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Undergrad Why does gravity increase when a star dies?
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High School How Often Do Blue Moons Really Occur?
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Earth-sized exoplanet spotted in star’s habitable zone
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Undergrad Collision Sparks Star Birth at Our Galaxy's Edge
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Undergrad Is it really possible to see down to mag 8?
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Graduate Sterile Neutrino Dark Matter: Case Advanced
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Undergrad Can NMEA (GPS) Data Tracker Help Improve Signal Reception?
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Are green <5mW laser pointers legal to use in New York City?
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Graduate Why do we observe only microwaves in the background radiation?
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Graduate Angular momentum of galaxies in galactic clusters
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High School Which Variable Star Has the Longest Period?
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Graduate Bullet Cluster: Controversial & Puzzling Evidence for Alternative Models
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High School Can WorldWide Telescope Help View Gas Clouds, Star Systems, and Galaxies Online?
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Undergrad Time travel into the past a possibility now?
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M42 and the Running Man nebula with Takahashi 150mm
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Undergrad Light & Black Hole: Absorbing Light w/o Mass
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Graduate Formation of 1st Solar System: Timeline Since Big Bang
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Graduate Superluminal Gravitational Acceleration
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