Astronomy, Astrophysics, Cosmology Forum

Graduate Can you observe evidence for a multiverse?

High School What is the biggest star we know of?

Graduate Photon, Gravity, Mass and Black Holes.

Graduate Is Our Universe Just a Giant Black Hole?

Graduate Is the Universe Infinitely Old and What Would We Expect to See?

Graduate Are Traces of Earliest Stars Actually Detected?

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Graduate Massive objects with super-solar metallicities at z~6

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Graduate Is the Universe Finite or Infinite? A Poll on the Current Debate in Cosmology

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Graduate What alternative theory might solve the dark matter problem?

Undergrad Specific definition of space in BB

Stargazing Are There Non-Photonic 'Telescopes' for Studying Astrophysical Objects?

Graduate An anomalous concentration of QSOs around NGC 3079

Graduate Values of an rms speed of hydrogen atoms in the observable universe?

High School Lower mass = more elliptical orbit?

Graduate Scientific method and predictability in cosmology

High School What Is the Fuel That Stars Run Out of Before Becoming Black Holes?

High School Heard the moon is moving away from us

Graduate CMBR - multiple detections of the same 'spots'?

Graduate How reliable are the redshift measurements from GRB 050904?

Graduate How Would the Universe Evolve Without Gravitation?

Graduate The Distribution of Dark Matter in Spirals

High School What is the maximum possible wavelength of radio waves?

Undergrad Where Does the First Second of the Universe Fall on the Time Line?

Graduate Could Gamma-ray Bursts Trigger Mass Extinctions?

Undergrad How Do Scientists Counteract Radiation Pressure on Artificial Satellites?

Undergrad What is dark matter and what effects does it have?

Graduate How do quantum gravity theories handle gravity during universe contraction?

Graduate Asteroseismic Analysis of Kepler Data

Undergrad How Did the Big Bang Create Atoms?

High School Finding info on the physicist who showed elements form in supernovae

High School How do planets form and what makes liquid water necessary for life?

Undergrad Are stars considered black bodies?

Graduate 'First Light' and the Universe's early years

High School What can I see with a £150 telescope in England?

Graduate What is the current state of the universe and its expansion?

Graduate Initial mass function of the first stars and reionization

Graduate More about the Cooperstock and Tieu model

Graduate What Are the Libration Points in the Mars, Phobos, and Deimos System?

Undergrad Is the Milky Way a Resonance-Ring Galaxy?

Undergrad New study shows Dark Matter isn't needed? Relativty explains it?

Undergrad Why Do All Galaxies Have a Supermassive Black Hole at Their Centre?

Graduate Star formation rates z=6 to z=10

Graduate Any such equation to relate spacetime to energy/mass

Undergrad Converting from the horizontal system to the equatorial system

Graduate Mars diameter from angular size, telescope optics, and orbital mechanics problems

Graduate Wraparound Universe: Is It Feasible?

Graduate New study shows Dark Energy isn't needed? Relativty explains it?

Undergrad How do scientists put satellites into space

Stargazing How can stacking improve astrophotography?

Undergrad How can I determine orbital elements using observations of an asteroid's motion?

Undergrad Is the inernal energy of the universe decreasing?

Graduate Message in the Sky: The Mysteries of the Heavens

Undergrad How much force would Superman need to hold back the moon at half a G-force?

Graduate Reionization: A Primer on Early Universe Physics

Undergrad Deriving Equations for Moon's Orbital Acceleration

Graduate What does the CMB power spectrum tell us about the cosmological principle?

Undergrad Habitable zone distances for F-M stars and tidal locking around M dwarfs

Undergrad How do you determine what coordinates are visible from your location?

Graduate Does density increase in collapsing fragments trigger fusion?

High School How Does the Size of an Eclipsing Planet Affect Star Brightness?

Graduate What is a Hamiltonian system?

Undergrad How does the cosmic background radiation works

Undergrad Weak and strong anthropic principle

High School Observing Unusual Red Star in Scorpius Constellation

Undergrad What Would Happen to Gravity If Earth Stopped Spinning?

Undergrad Calculating Space Probe Trip to Neptune with Jupiter Assist

Undergrad Gravitational effect of sun on earth

Graduate Where are the real definitions of homogeneity and isotropy?

Graduate Recent developments in dark matter research

Graduate What Would Happen if You Tried to Move Beyond the Edge of the Universe?

Undergrad How Are Planets Detected Through Transit Method?

Undergrad What Are Physical Symmetries and How Do Particles Transform?

Graduate Semi-pop review of structure of universe

Graduate UV Galaxy Surface brightness says no expansion

Graduate Apollo laser retroreflector experiment publication and feasibility

High School Is NASA's Future Tied to Russian Spacecraft?

Undergrad Heat of objects entering an atmosphere?

Graduate A Case For an Indeterministic Universe

Undergrad What Day Will You See the Same Star Rise at 10:40pm?

Undergrad What Is Dark Matter Made Of?

Graduate Dark matter highlights extra dimensions

Stargazing Did I finally capture decent pictures of Mars and other celestial objects?

Graduate Understanding Object Movement in Space: Factors Affecting Speed Between Galaxies

High School Good websites for learning astrophysics

Graduate The Susskind Counter Information Paradox?

Undergrad Why does Iapetus have an equatorial ridge bisecting it?

High School How does a space ladder from a satellite work?

Graduate Can stellar material be recycled after a star goes nova?

Undergrad Is the LuniSolar theory a legitimate scientific theory?

Undergrad How do astronomers measure an objects angular size?

Undergrad Will the Expanding Universe Break the Attractive Forces Between Particles?