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 Is the Universe Really Expanding or Just a Local Phenomenon?
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Graduate Solving Kepler's Problem: Awkward Integration
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Graduate Understanding White Dwarf Temperature
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Stargazing Buying a beginner pair of binoculars
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High School Mysterious Lunar Ring in the French Alps
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Undergrad Understanding Motion in Space Calculations
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Graduate 3 Planets converging on Leo Constellation
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Undergrad Solar declination / solar panel array design
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Stargazing Need advice on telescope for astrophotography
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Undergrad Space Boundaries: Is There Such a Thing?
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Graduate How Does Time Behave Near a Black Hole?
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High School When does the Sun sets down at 71°11'
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Undergrad How is it that the sun affects our tides?
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Graduate Space expansion on smaller scales
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Undergrad Can a Planet Leave Its Orbit Without External Forces?
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Graduate Newtonian mechanics & Oort Cloud Shell
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Graduate What Happens When a Black Hole Meets an Anti-Black Hole?
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High School Sun's Magnetic Pole Reversal & Current Location: North or South?
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Stargazing Moon Illusion to Supersize Saturday Lunar Eclipse
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Undergrad Does Einstein's Theory of Relativity Predict Dark Matter?
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Undergrad Do massive objects in space act as gyroscopes?
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High School Is the Universe Really Expanding?
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Graduate What if all Dark Matter searches like CDMS II remain negative?
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Graduate What Can We Expect for ADG in a Building Like This?
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Stargazing Oops, I didn't read the post good enough, sorry!Last edited: Oct 30, 2016
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High School Moon Rings: Blue, Yellow & Red - Explanation?
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Undergrad Gravity in Planets & Stars: Investigating Middle
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Graduate Is the speed of gravity truly instantaneous or does it have a delay?
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Graduate Why Did the Universe Cool Down After the Big Bang?
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High School Do Planets Spin in the Same Direction They Orbit?
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Undergrad How fast are the projectiles from a supernova?
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Graduate You could get to the speed of light. If you could synthesise gravity
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High School What classes do I need to become an astronomer?
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Undergrad Question about falling bodies in orbit and acceleration
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Undergrad Maintaining Orbit of Two Planets Around Sun: Is it Possible?
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Undergrad Meteorite Heating: Friction or Compression?
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High School Is a Black Hole One-Sided or a Spherical Entity?
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High School How Do Astronomers Count the Number of Stars in the Sky?
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Undergrad Is the Sun’s position in the Galaxy close to its predecessor’s position?
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Graduate Detecting an Extra-Solar ‘Earth’
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What Do the Purple Dots and Signs Represent in the LIGO Experiment Screensaver?
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Undergrad Why is maximum orbital acceleration greatest at periapsis?
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Graduate Error in CMB Interpretation? Implications?
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Graduate Are There 706 Potential Exoplanets in the Latest Kepler Mission Release?
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Graduate Are black holes a point of singularity?
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Graduate Time required to form a black hole
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NASA's Face in Space Program - Send Your Photo to Space!
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Graduate Was the Moon Only 16,000 km from Earth During the Hadean Eon?
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Graduate What Is Gravitational Time Dilation and How Does It Work?
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Undergrad Why is the ideal gas law a good approximation for stars?
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Undergrad Where did the moon get its orbiting energy?
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Graduate Star's Spin: Clockwise or Counterclockwise in Black Holes?
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Undergrad Searching for an Official Database of Solar System Properties
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Graduate Can Light Behave Differently in Moving Inertial Reference Frames?
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Undergrad What is the Semi-Major Axis of Saturn's 10-Year Orbit?
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Undergrad Space expansion in our perspective?
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Graduate Anomalous Quasar Observations 200k Light Year Jet? And So On.
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Undergrad Understanding Phase Space and Building It
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Graduate Complete photonic view like the CMBR version
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What information will you send to aliens?
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Why Use IRAF? The Benefits of This Powerful Image Processing Tool
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High School Does the Tidal Effect Cause Planets to Move Away from the Sun?
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Undergrad Longest day of year in the tropics
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Undergrad Will Betelgeuse Go Supernova Soon?
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Undergrad 'Close Encounters' and Galaxy formation
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Graduate Was Gravity turned off during inflation?
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Stargazing Do we see the future through telescopes? or the past?
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Graduate In Retrospect: If ColdWar-to-HotWar Had Happened ?
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Graduate Laser interferometry and the search for gravitational waves
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Undergrad In wich economic model this are more advanced: Space Exploration and Science.
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Graduate Do black holes truly never reveal their secrets?
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Graduate Ancient mid-latitude Mar's covalent bonded ice?
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Graduate Can something exist without time-space?
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Undergrad Earth's Departure from the Solar System: Impact on Planetary Orbits
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High School Mass & Emittance: Does Heat Affect Mass?
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Graduate Are waves only defined in 2D, or can they exist in three dimensions?
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Undergrad Is there such a thing as lumens/m^3?Would you have to be measuring
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Graduate Black Holes and the Mysteries of r=0: Understanding the Concept of Infinity
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Graduate How is Hawking Radiation Derived Using the Heisenberg Uncertainty Principle?
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High School Is Earth's Rotation Really Slowing Down?
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Undergrad Finding the equilibrium bwetween two celestial bodies
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Undergrad What is a 'Gravitational Slingshot'?
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Graduate Why is Solar Cycle 24 Starting So Slowly?
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Graduate Is the Universe's Age Finite or Infinite Beyond Our Horizon?
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Graduate Besides the bigbang, are there other published theories about cosmic microwave
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Undergrad How does the three-body system (Earth, moon, Sun) work?
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Graduate Latest on black hole infromation paradox?
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High School Are the planets where we belive these to be
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Inner and Outer Spacewhere does it begin, your opinion.
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Graduate LCROSS/LRO and Their Effect on the Moon
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High School Why is the Moon drifting away from Earth?
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High School Is Meade LX200 10 a Good Deal for Your CCD Scope?
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Graduate Neutrino Astronomy: How Much Energy Passes Through Us?
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High School Length of Days: Past vs. Present - Comparing Rotation Speeds
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Undergrad Gravitational Disc consequence ?
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Graduate Can a Collapsing Star Form a Wormhole?
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Graduate Magnatars (Hypothetical Question)
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Undergrad What Is the Longest Wavelength We Can Observe in Radio Astronomy?
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Undergrad How does inflation explain the rapid expansion of the universe?
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High School Do all planets have magnetospheres?
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