Astronomy, Astrophysics, Cosmology Forum

Graduate What is Causing the Expansion of a Singular Particle in an Absorbed Universe?

Graduate Recent Supernovae Ia observations tend to rule out all the cosmologies

Graduate Paper - Sun not powered by H fusion

Graduate Could Flattened Disks Explain Galaxy Rotation Without Dark Matter?

High School Intro to Astronomy & Astrophysics

Undergrad Jupiter as a Gravitational lens?

Graduate Does natural selection apply extra-galactically?

Undergrad Edmund halley and the venus transit

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Graduate Andre's Question: A or B Before C?

High School Probe returning with asteroid rock sample

Graduate What Is the Entropy of a Black Hole?

Graduate Does mathematics rule the universe?

Graduate I tend to think of the universe in a simple matter

Graduate Why Did the Big Bang Create Irregular Bumps Instead of Expanding Uniformly?

Undergrad Why are our planets and galaxy in a plane shape?

Graduate Gravitational tractor for towing asteroids

Undergrad Why does a gas cloud spontanously rotate?

Graduate Could Quasars Be Ejection Events Instead of Collisions?

High School Speed of light? Or velocity of free space?

High School Center of Galaxys: Red Giant or Supernova?

Graduate If space is flat then what is directly under the planets?

Graduate Planets cause a warp in the fabric of space time

Graduate Flat Universe Theory: Questions & Answers

Graduate Does Gravity Play a Significant Role in Accretion?

Graduate Astronomy Problems: Please Look/help

Graduate What Are the Best Papers on Dark Matter and Dark Energy?

Graduate Patent 4 a close 2 C space vehicle drive

Graduate Calculating Speed of Stationary Object Falling Towards Earth

Graduate Settlement on Moon: Artificial Gravity & Feasibility

Graduate Acceleration of charges at Big Bang

Undergrad Does Gravitational Attraction Cause Energy Transfer Between Celestial Bodies?

Undergrad What Do We Know About the Composition of Mars' Moons, Phobos and Deimos?

Undergrad Gravitational Lensing: Why Does it Only Create Clones?

Graduate Models for Compactification from Inflation?

High School What Can You See With a Telescope During the Day?

Graduate Did Inflation Solve the Problem of the Universe's Original Gravity?

Undergrad Seeing light from early Universe

Graduate Shrinking Universe: Visible Universe & Universal Center of Mass

Graduate There must be a center to it all.

Graduate Accuracy in Space: Can 10000kg Bolts & Nuts be Precisely Screwed?

Graduate Black Holes: The Possibility of Energy to Matter Conversion

Graduate What Are the Chances of Different Physical Laws If We Restarted the Big Bang?

Graduate Can We Pinpoint the Direction of the Big Bang's Origin?

Graduate Is Dark Matter the Unruh effect applied to the acceleration of Gravity?

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Graduate What Are the Implications of Being the First Intelligent Life in the Galaxy?

Graduate Could the Speed of Light be Calculated Differently?

Graduate Anyone care to guess the size/diameter of the Universe?

Graduate Preservation of Space: Is There a Model?

High School Mysterious Spin of the Moon: How Does it Change?

Graduate Energy Requirements for Compressing Matter into a Black Hole

Stargazing What features should beginners look for when purchasing a telescope?

Graduate Glass Planets: Common and Detectable in Our Galactic Neighborhood?

Undergrad Why Does Venus Rotate Backwards?

High School What is the Truth about Black Holes and Light Holes?

Graduate Is There a Way to Distinguish Between Singularity and Matter in Black Holes?

Graduate Inside the Black Hole: Unravelling Its Mysteries

Undergrad Why are geosynchronous orbirs in equatorial plane circular?

Undergrad IS IT POSSIBLE TO CREATE A TRANSPARENT SHIELD FOR SPACE STATIONS?

Stargazing Telescope acting like microscope

Graduate Can White Holes Challenge the Second Law of Thermodynamics?

Undergrad [stars] Nuclear Fuel usage rate

Graduate What Happens to the Universe if Omega Equals Exactly 1?

Graduate A rulebased universe is much more compelling

Stargazing Animation I made last night of Mars

Graduate Neutron Stars: Strong Force, Density & Black Holes

Graduate Is the Universe Truly Closed and Bound by Entropy?

Graduate Could a Supernova Have Killed Off Mammoths?

Graduate Could the Big Bang Be a White Hole?

Graduate What is the appropriateness of the term potential in general relativity?

Undergrad The maximum range of a missile_the earth is not flat

Undergrad Are There Tables Showing Distance vs. Red Shift of Stars?

Graduate The Multiverse: A New Perspective on Our Existence

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?

• Poll

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

• Poll

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

• Poll

Graduate Could Nucleonic Forces Hold the Key to Solving the Dark Matter Mystery?

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 Big Bang Failures: Examining Scientific Method & Tech Impact

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