Astronomy, Astrophysics, Cosmology Forum

Join in expert discussion on the topics of Astronomy, astrophysics and cosmology. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.

Threads

High School Big Bang Project Ideas: Get Creative!

  • jawmes
  • · Replies 8 ·
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8

Graduate A nice reality check on cosmology.

  • turbo
  • · Replies 1 ·
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1

Graduate Calculating Solar Neutrino Emission Using p-p Chain Energies

  • janzizka
  • · Replies 1 ·
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1

Graduate Another MOND prediction confirmed.

  • ohwilleke
  • · Replies 16 ·
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16

Graduate Difference between BH's and BH's?

  • Peter.E
  • · Replies 9 ·
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9

Undergrad What Is the Luminosity Distance Relationship?

  • bigman8424
  • · Replies 5 ·
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5

Graduate Cosmological constant and Dark energy

  • wolram
  • · Replies 11 ·
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11

Undergrad Is Imagination a Gateway to the Universe?

  • oldunion
  • · Replies 4 ·
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4

Undergrad Redshift & Blueshift: Is There a Consensus?

  • LocktnLoaded
  • · Replies 5 ·
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5

Space Travel n size of traveller

  • darkar
  • · Replies 7 ·
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7

Undergrad Probabilities of earth like orbits, and solar systems like ours?

  • wolram
  • · Replies 5 ·
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5

High School Could Jupiter Be a Failed Star?

  • hexhunter
  • · Replies 36 ·
2
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36

High School Studying Neptune: Investigating the Unknown

  • relativelyslow
  • · Replies 7 ·
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7

High School Questions About the Sky: An Array of Questions

  • Mozart
  • · Replies 7 ·
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7

High School The Moon's Rotation and Why it Doesn't Spin: Theories and Explanations

  • godzilla7
  • · Replies 10 ·
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10

Graduate Can We Create Miniature Black Holes at Particle Accelerators?

  • cosmoboy
  • · Replies 1 ·
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1

Graduate New MOND paper: Pointecouteau and Silk

  • marcus
  • · Replies 2 ·
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2

Graduate Is the Big Bang Theory the Only Valid Explanation for the Universe's Origin?

  • sd01g
  • · Replies 41 ·
2
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41

Graduate Unveiling the Mystery of the Cosmological Constant: A Fresh Perspective on CC

  • wolram
  • · Replies 3 ·
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3

Big Bang Article - Early Universe more Fluid like

  • yogi
  • · Replies 1 ·
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1

Graduate Process noise of satellite orbit determination

  • whigg_wang
  • · Replies 1 ·
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1

Undergrad Light Bending Around Black Holes: A Real Phenomenon

  • UrbanXrisis
  • · Replies 1 ·
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1

Graduate Nuclear Physics & Cosmology Resource Books - Solution-Oriented

  • janzizka
  • · Replies 1 ·
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1

High School Current Theory of Expansion of Space: What Do Scientists Think?

  • Mark Walker
  • · Replies 1 ·
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1

Graduate What is the Cosmological Natural Selection theory?

  • marcus
  • · Replies 72 ·
3
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72

Graduate Trying to make sense of the time in spacetime

  • WarrickF
  • · Replies 1 ·
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1

Astronomers photograph extra-solar planet

  • infidel
  • · Replies 4 ·
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4

High School Saturn is diminished and can be put into a PURE water container

  • lwymarie
  • · Replies 9 ·
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9

Is This the Most Stunning Space Animation Online?

  • Olbers_Paradox
  • · Replies 2 ·
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2

High School Matter/Energy Ratio: Help Needed on Critical Universe Ques.

  • sp3685
  • · Replies 3 ·
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3

Weird Project Idea: Help Needed for Report Container

  • SplinterIon
  • · Replies 2 ·
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2

Graduate Understanding Standing Waves & How They Fit in Black Holes

  • ColdFusion85
  • · Replies 5 ·
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5

High School My Body Expanding? A Frightening Thought

  • icvotria
  • · Replies 19 ·
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19

Stunning New Hubble Photo of Whirlpool Galaxy M51

  • Orion1
  • · Replies 2 ·
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2

Graduate Universe AgeSize with respect to DM?

  • Spin_Network
  • · Replies 3 ·
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3

Graduate Does Zero Curvature in Space Really Mean a Looping Universe?

  • DaveC426913
  • · Replies 4 ·
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4

Undergrad How Would You Navigate After Using a Warp Drive?

  • aychamo
  • · Replies 42 ·
2
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42

High School Sun Rise Laser Cannon Aiming - Unraveling the Mystery

  • gunblaze
  • · Replies 4 ·
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4

Graduate Is Gravity More Than Just a Force in a Unified Theory?

  • LizardKing23
  • · Replies 28 ·
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28

Undergrad What Is the Equation for Estimating Extraterrestrial Life?

  • Someone502
  • · Replies 2 ·
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2

WANTED: mysteries of the universe

  • pattiecake
  • · Replies 15 ·
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15

High School Can a Gong in Space Vibrate Without Sound?

  • hsutrack
  • · Replies 2 ·
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2

High School Are There Solar Systems with More Than Three Stars?

  • revelator
  • · Replies 13 ·
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13

Graduate Could the uneven expansion of the universe challenge the concept of equilibrium?

  • Karoly
  • · Replies 6 ·
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6

Graduate Would a Nearby Supernova Disrupt the Solar Wind and Cause Earthquakes?

  • Mike2
  • · Replies 9 ·
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9

High School Top 10 Hands-On Astronomy Activities?

  • cj
  • · Replies 7 ·
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7

High School What Are Black Holes and How Do They Curved Space?

  • AcEY
  • · Replies 16 ·
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16

Possible threat: passenger airplane denied access to US airspace

  • Monique
  • · Replies 27 ·
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27

Graduate White Dwarfs: Structural & Evolutionary Overview

  • charlie85
  • · Replies 2 ·
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2

Graduate Big Bang = Big Flow (RHIC Results)

  • Phobos
  • · Replies 5 ·
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5

Name two things that signifify a trip around the sun

  • pattiecake
  • · Replies 9 ·
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9

Graduate Could Light Energy Loss Explain the Expansion of Space?

  • whatdofisheat
  • · Replies 18 ·
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18

High School At the beginning of the universe

  • lwymarie
  • · Replies 2 ·
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2

Graduate Look For Extraterrestrial Civilizations (Don't Just Listen)

  • Ivan Seeking
  • · Replies 6 ·
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6

Graduate What Mathematical Tool Measures the Curvature of Space?

  • misskitty
  • · Replies 21 ·
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21

High School Is Teegarden's star really that close?

  • evthis
  • · Replies 12 ·
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12

Graduate How to find the size of the universe?

  • whozum
  • · Replies 19 ·
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19

High School Temperature of Space - Facts & Figures

  • Pengwuino
  • · Replies 28 ·
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28

Graduate Hubble Trouble: Solving the Big Bang Age and Acceleration Mystery

  • KOLYA K
  • · Replies 2 ·
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2

Graduate Could Our Universe Be Inside a Giant Black Hole?

  • A_I_
  • · Replies 6 ·
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6

Graduate Question regarding accellerating expansion of the universe.

  • hedons
  • · Replies 36 ·
2
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36

Graduate What Is the Significance of a Naked Singularity in General Relativity?

  • wolram
  • · Replies 15 ·
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15

Graduate What Exactly is a Degenerate Gas?

  • Baggio
  • · Replies 6 ·
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6

Graduate Help Needed: Solving the N-Body Problem in 3 Dimensions

  • LizardKing23
  • · Replies 9 ·
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9

Graduate Interstellar medium: Theory and models.

  • hellfire
  • · Replies 34 ·
2
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34

Graduate Dark matter, energy and negetive gravity

  • misskitty
  • · Replies 12 ·
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12

Graduate Gravitation, inertia, and the vacuum

  • turbo
  • · Replies 7 ·
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7

Graduate MOND & TeVeS: Unifying Dark Matter & Dark Energy

  • ohwilleke
  • · Replies 3 ·
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3

Undergrad Astronomers Unveil Star Size Limit: What Does it Mean for Cores?

  • Starship
  • · Replies 6 ·
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6

Undergrad How can the expansion of space cause light to loose energy?

  • whatdofisheat
  • · Replies 42 ·
2
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42

Graduate Does the physical universe exist before conception and after death?

  • Loren Booda
  • · Replies 1 ·
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1

Undergrad Effects of spontaneous gravity reduction

  • happytadpole
  • · Replies 3 ·
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3

Graduate Unifying the universe: Michio Kaku

  • Ivan Seeking
  • · Replies 1 ·
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1

High School What Causes the Moon to Appear Orange?

  • Pengwuino
  • · Replies 19 ·
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19

Undergrad Not wanting to belive the acceleration universe model

  • whatdofisheat
  • · Replies 30 ·
2
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30

Graduate Bad Science and the Anthropic Cosmological Principle

  • moving finger
  • · Replies 29 ·
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29

Undergrad Is it possible for a Rocky Giant with rings around it?

  • Silverbackman
  • · Replies 5 ·
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5

Undergrad Science’s doomsday team vs. the asteroids

  • Ivan Seeking
  • · Replies 43 ·
2
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43

High School Predicting Solar and Lunar Eclipses

  • The Bob
  • · Replies 17 ·
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17

High School The Great Red Spot: What Caused Jupiter's Huge Red Spot?

  • stoned
  • · Replies 8 ·
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8

Graduate Could Quantum Fluctuations Happen Even

  • Gold Barz
  • · Replies 5 ·
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5

Graduate Can We Really Understand the Universe? A Look at the Current State of Cosmology

  • Chronos
  • · Replies 23 ·
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23

Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth

  • Gale
  • · Replies 30 ·
2
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30

High School Where Can I Find Comprehensive Resources on the Cosmic Microwave Background?

  • The Rev
  • · Replies 3 ·
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3

Undergrad How Many Supernovas Have Occurred Since the Big Bang?

  • Spin_Network
  • · Replies 24 ·
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24

Undergrad Is the moon's Hill Sphere the same as its Roche Radius?

  • naranekkosh
  • · Replies 3 ·
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3

Graduate Estimating Mass of Universe Within Horizon

  • wolram
  • · Replies 25 ·
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25

Graduate Do black holes have multiple singularities?

  • Ivan Seeking
  • · Replies 16 ·
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16

Graduate Redening of light from a certian density of particals

  • whatdofisheat
  • · Replies 1 ·
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1

Undergrad Escape Velocity Given Radius of 2 Objects

  • bigman8424
  • · Replies 4 ·
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4

High School Discovering Hoag's Object: A Fascinating Cosmic Smoke Ring in Space

  • tdunc
  • · Replies 1 ·
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1

Graduate The Possibility of a Black Hole Big Bang

  • mapper
  • · Replies 5 ·
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5

Undergrad 3 Questions - Why are some orbits

  • Gold Barz
  • · Replies 3 ·
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3

Graduate Can Spacetime Foam Create New Universes?

  • Gold Barz
  • · Replies 3 ·
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3

Stargazing A Partial Solar Eclipse Viewing Guide

  • Andromeda321
  • · Replies 1 ·
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1

High School How does distance from the sun affect the apparent brightness?

  • Mariko
  • · Replies 8 ·
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8

Undergrad Clay-like Material: From Soft to Hard in Space and Earth

  • dbstpdud12
  • · Replies 1 ·
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1

Graduate Does the big bang imply a finite universe

  • Allday
  • · Replies 47 ·
2
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47

Graduate Are there white holes that pump matter into Universe?

  • spicerack
  • · Replies 20 ·
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20

Graduate Shape of the Universe: Flat or Curved?

  • moonman
  • · Replies 1 ·
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1