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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.

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Graduate Vela-X supernova and carbon dating?

Andre
Jun 6, 2005 · Replies 6 · Jun 8, 2005

Replies: 6

Graduate Dominant energy condition and superluminal acoustic modes

ylping
Jun 8, 2005 · Replies 1 · Jun 8, 2005

Replies: 1

Does Big Bang Theory Allow for God's Existence?

Lisa!
May 29, 2005 · Replies 16 · Jun 8, 2005

Replies: 16

Graduate Does BH Mass Boundary Vary with Matter Type?

wolram
Jun 2, 2005 · Replies 5 · Jun 7, 2005

Replies: 5

Graduate Quasars non cosmological red shift.

wolram
Jun 7, 2005 · Replies 1 · Jun 7, 2005

Replies: 1

Graduate Eot-Wash sub-mm test inverse square law

marcus
Jun 7, 2005 · Replies 1 · Jun 7, 2005

Replies: 1

Graduate New Take on SETI: Astro-ph/0506110

marcus
Jun 6, 2005 · Replies 2 · Jun 7, 2005

Replies: 2

Stargazing Building a telescope mount and have some questions

Braumin
Jun 5, 2005 · Replies 4 · Jun 6, 2005

Replies: 4

Graduate What is the significance of high redshift black holes for the early universe?

wolram
Jun 3, 2005 · Replies 6 · Jun 5, 2005

Replies: 6

Graduate Can Humanity Overcome the FTL Barrier?

guevaramartyr
May 26, 2005 · Replies 7 · Jun 5, 2005

Replies: 7

Graduate So Has Virtual Particles Been Proven To Exist?

Gold Barz
Jun 5, 2005 · Replies 4 · Jun 5, 2005

Replies: 4

Why is the secondary star in Eridanus1 so blue?

Eridanus1
Jun 4, 2005 · Replies 1 · Jun 4, 2005

Replies: 1

Graduate What are the most-studied topics in astronomy and cosmology by recent paper count?

ohwilleke
Jun 2, 2005 · Replies 6 · Jun 4, 2005

Replies: 6

Graduate Increasing G during the formation of helium.

EL
Jun 3, 2005 · Replies 6 · Jun 3, 2005

Replies: 6

Graduate Non-Cosmological Interpretation of Redshift

SpaceTiger
May 28, 2005 · Replies 56 · Jun 3, 2005

2

Replies: 56

Undergrad Is Dark Matter the Missing Piece in Our Cosmic Puzzle?

Lisa!
May 26, 2005 · Replies 50 · Jun 2, 2005

2

Replies: 50

High School Can TV Static Detect Cosmic Microwave Background Radiation?

Mariko
May 28, 2005 · Replies 10 · Jun 2, 2005

Replies: 10

Graduate My first post here and a question

Dannyinjapan
May 19, 2005 · Replies 10 · Jun 2, 2005

Replies: 10

Graduate New cosmology from Lorentz and Levi-Civita conservation laws

wolram
Jun 2, 2005 · Replies 2 · Jun 2, 2005

Replies: 2

Undergrad Are Other Dimension Universes Plausible?

Gold Barz
Jun 1, 2005 · Replies 9 · Jun 1, 2005

Replies: 9

High School Unlimited Universe: Can We Explain It?

aceace
Jun 1, 2005 · Replies 3 · Jun 1, 2005

Replies: 3

Graduate Density of the inter-cluster medium

Garth
May 30, 2005 · Replies 9 · Jun 1, 2005

Replies: 9

Undergrad Expansion of the Universe, cop this

Ryan Lucas
May 30, 2005 · Replies 13 · Jun 1, 2005

Replies: 13

High School Discussing quasars and Hubble constant to improve English

mars2
May 26, 2005 · Replies 13 · Jun 1, 2005

Replies: 13

Graduate Metallicity of the WHIM and ICM, and its history

hellfire
May 30, 2005 · Replies 2 · Jun 1, 2005

Replies: 2

Graduate Why doesn't expanding space break objects on Earth?

Zanket
May 21, 2005 · Replies 118 · May 31, 2005

4

Replies: 118

Can You Name All the Moons in Outer Space?

FreeWill
May 25, 2005 · Replies 6 · May 31, 2005

Replies: 6

Does US space weapons development trigger an arms race?

chound
May 24, 2005 · Replies 11 · May 31, 2005

Replies: 11

Graduate Was Cosmic Recombination Caused by Charge Attraction or Positron Infusion?

Spin_Network
May 31, 2005 · Replies 1 · May 31, 2005

Replies: 1

Graduate Why do galaxies rotate faster than their visible mass allows?

gaugeboson
May 31, 2005 · Replies 1 · May 31, 2005

Replies: 1

Graduate Why do quasar cores expand at superluminal velocities?

gaugeboson
May 31, 2005 · Replies 1 · May 31, 2005

Replies: 1

Graduate Quasar absorption lines and what they reveal

SpaceTiger
May 27, 2005 · Replies 18 · May 30, 2005

Replies: 18

Undergrad How Fast Are We Really Moving in the Universe?

Enkiadu
May 30, 2005 · Replies 3 · May 30, 2005

Replies: 3

Poll

Would you buy a lottery ticket for a free spaceship ride?

Arctic Fox
May 29, 2005 · Replies 17 · May 30, 2005

Replies: 17

Undergrad Creation of heavy elements: r and s process

Gideon
May 25, 2005 · Replies 3 · May 29, 2005

Replies: 3

The Pork Chop Solution: Pondering My Place in Space

Chronos
May 28, 2005 · Replies 4 · May 28, 2005

Replies: 4

High School What do the shockwave lines represent in Voyager's exit from the solar system?

Pengwuino
May 26, 2005 · Replies 2 · May 28, 2005

Replies: 2

Graduate Hyper Metal-Poor Stars: The First Generation in the Universe?

wolram
May 27, 2005 · Replies 4 · May 27, 2005

Replies: 4

Couldn't we use artificial soil to colonize it?

FreeWill
May 24, 2005 · Replies 16 · May 27, 2005

Replies: 16

Graduate Quasars are closer, less massive, not as bright.

wolram
Dec 23, 2004 · Replies 14 · May 27, 2005

Replies: 14

High School Where in the solar system could diamonds naturally form?

MonstersFromTheId
May 26, 2005 · Replies 10 · May 27, 2005

Replies: 10

Undergrad Need Source Code In c For 2-Bodies Gravitational Problem

Zaheer Ahmed
May 4, 2005 · Replies 6 · May 26, 2005

Replies: 6

Graduate N-body simulation gives semicircular orbit instead of ellipse with leap-frog and RK4

Zaheer Ahmed
May 3, 2005 · Replies 19 · May 26, 2005

Replies: 19

Undergrad Cleaning a dusty 9-inch reflector mirror without scratching

sonhouse
May 25, 2005 · Replies 5 · May 25, 2005

Replies: 5

Poll

What explains the origin of the universe: creation or eternal cycles?

Silverbackman
May 23, 2005 · Replies 9 · May 25, 2005

Replies: 9

Graduate Could a second genesis have occurred on Earth?

wolram
May 25, 2005 · Replies 2 · May 25, 2005

Replies: 2

Protecting Astronomers from Space Adverts

Phobos
May 24, 2005 · Replies 3 · May 24, 2005

Replies: 3

Graduate Where is Dark Matter Found in the Universe?

Dr.Brain
May 24, 2005 · Replies 6 · May 24, 2005

Replies: 6

High School Is There a Center to the Universe?

icvotria
May 4, 2005 · Replies 22 · May 24, 2005

Replies: 22

Graduate What methods can detect life in distant galaxies beyond spectroscopy?

Sunshine
May 21, 2005 · Replies 19 · May 24, 2005

Replies: 19

High School Kleopatra main asteroid belt between Mars and Jupiter

wolram
May 18, 2005 · Replies 7 · May 24, 2005

Replies: 7

High School What Is Pluto? Can We Live There?

FreeWill
May 20, 2005 · Replies 10 · May 23, 2005

Replies: 10

Graduate What besides mass warps space?

j6p
Feb 25, 2005 · Replies 20 · May 23, 2005

Replies: 20

Graduate What is the Possibility of White Holes?

Dr.Brain
May 18, 2005 · Replies 5 · May 23, 2005

Replies: 5

Undergrad What is the future of USAA in commercial space travel?

mnowacze
May 22, 2005 · Replies 1 · May 23, 2005

Replies: 1

High School Does the Moon's Gravity Attract Earth?

lwymarie
Apr 30, 2005 · Replies 43 · May 22, 2005

2

Replies: 43

Graduate What is the Explanation for the Cosmic Microwave Background Radiation?

wolram
May 13, 2005 · Replies 13 · May 22, 2005

Replies: 13

Graduate Why do lensed quasars like the Einstein cross stay point-like?

turbo
May 13, 2005 · Replies 32 · May 22, 2005

2

Replies: 32

Graduate Integration of Superstring Theory into the Big Bang

samshaikh
May 21, 2005 · Replies 1 · May 21, 2005

Replies: 1

Graduate HI clouds in the center of the Virgo cluster

hellfire
May 21, 2005 · Replies 0 · May 21, 2005

Replies: 0

Graduate Conceptualizing the analogy of gravity

tourmaline
May 18, 2005 · Replies 5 · May 21, 2005

Replies: 5

Undergrad Why do most stars lie on the main sequence?

Baggio
May 13, 2005 · Replies 7 · May 21, 2005

Replies: 7

Graduate What fuels accelerating expansion of our universe

spicerack
Mar 27, 2005 · Replies 48 · May 21, 2005

2

Replies: 48

Undergrad What are Non-Spherical Structures in Astronomy?

ohwilleke
May 12, 2005 · Replies 8 · May 20, 2005

Replies: 8

Graduate What Happens When the Particle Horizon Exceeds the Event Horizon?

BzzBzzz
May 5, 2005 · Replies 1 · May 19, 2005

Replies: 1

Graduate About Eternal Inflation and Spacetime Bubbles

Curious6
May 17, 2005 · Replies 3 · May 19, 2005

Replies: 3

Undergrad What is the distance between peaks in this Cassini image?

Arctic Fox
May 17, 2005 · Replies 7 · May 18, 2005

Replies: 7

Graduate Does the Sun's core rotate faster or slower than its surface?

Chronos
May 14, 2005 · Replies 6 · May 18, 2005

Replies: 6

Graduate Is the Lunar-Precession Theory Flawed?

quetzalcoatl9
May 16, 2005 · Replies 4 · May 18, 2005

Replies: 4

Graduate Can three galaxies bound by dark matter be a three body problem?

kurious
Aug 3, 2004 · Replies 33 · May 17, 2005

2

Replies: 33

High School Spiral Galaxies: 3 Distinguishing Characteristics

zcapa14
May 16, 2005 · Replies 5 · May 16, 2005

Replies: 5

Graduate Black Holes - Where does all the matter go

BenGoodchild
May 15, 2005 · Replies 21 · May 16, 2005

Replies: 21

Undergrad Did abhas mitra proved that black holes dont exist

sandesh trivedi
May 16, 2005 · Replies 7 · May 16, 2005

Replies: 7

Graduate Parallel Universe, 10 dimensions

Nietsnie
Sep 14, 2004 · Replies 36 · May 15, 2005

2

Replies: 36

Graduate First detection of a black hole being born

Ivan Seeking
May 10, 2005 · Replies 17 · May 15, 2005

Replies: 17

What happened to Sean Carroll?

robphy
May 14, 2005 · Replies 6 · May 15, 2005

Replies: 6

Graduate Did Iapetus Collide with a Primordial Saturnian Ring?

wolram
May 2, 2005 · Replies 8 · May 14, 2005

Replies: 8

Graduate Is Frame Dragging an Example of a Gravity Wave?

tony873004
May 10, 2005 · Replies 8 · May 14, 2005

Replies: 8

Graduate Calculate separation of galaxies as a function of time

gerardo
May 9, 2005 · Replies 12 · May 14, 2005

Replies: 12

Graduate What If Missing Particles and Stuff Cannot Be Found?

wolram
Apr 20, 2005 · Replies 97 · May 14, 2005

4

Replies: 97

Can't sleep or the space monkeys will get me?

bjon-07
May 13, 2005 · Replies 11 · May 14, 2005

Replies: 11

Undergrad Form and Features of Asteroids and Neutron Stars

jingles2005
May 7, 2005 · Replies 10 · May 14, 2005

Replies: 10

High School More precise numbers on 2004MN4 asteroid flyby in 2029

marcus
May 13, 2005 · Replies 2 · May 13, 2005

Replies: 2

Undergrad Calculating solar mass using luminosity

zircher
May 12, 2005 · Replies 6 · May 13, 2005

Replies: 6

Stargazing Photo of my RA drive. Its an ETX-105.

russ_watters
May 10, 2005 · Replies 3 · May 12, 2005

Replies: 3

Graduate What determines the value of the gravitational constant?

Werg22
Apr 11, 2005 · Replies 6 · May 12, 2005

Replies: 6

Gamma ray emission which is confusing some scientists

A_I_
May 12, 2005 · Replies 1 · May 12, 2005

Replies: 1

Graduate Gravitational Waves of Early Universe

Spin_Network
May 11, 2005 · Replies 3 · May 12, 2005

Replies: 3

Graduate What factors contribute to the migration of hot Jupiters?

marcus
May 11, 2005 · Replies 2 · May 12, 2005

Replies: 2

Stargazing New 3x Barlow lens and a 2x shorty barlow lens

russ_watters
Mar 5, 2005 · Replies 12 · May 10, 2005

Replies: 12

Graduate Is There a Black Hole in Our Solar System?

wolram
Apr 30, 2005 · Replies 14 · May 10, 2005

Replies: 14

Graduate Is the three-body problem solvable when all bodies are in the same plane?

Inquisiter
May 9, 2005 · Replies 7 · May 10, 2005

Replies: 7

Undergrad Light Speed vs Vision: Is Optic Velocity Greater Than 300000km/s?

A_I_
May 9, 2005 · Replies 3 · May 9, 2005

Replies: 3

Graduate Is renormalization in quantum field theory a valid approach?

oldunion
May 5, 2005 · Replies 17 · May 9, 2005

Replies: 17

Graduate Unmovable object and an unstoppable object

z4955
May 6, 2005 · Replies 8 · May 8, 2005

Replies: 8

Graduate Big Bang timeline and faster-than-light expansion paradoxes

P-a-u-l
May 5, 2005 · Replies 7 · May 8, 2005

Replies: 7

Graduate How do lunar and solar forces affect anterior propulsion?

DONNIBBLETT PHD.
May 8, 2005 · Replies 1 · May 8, 2005

Replies: 1

Graduate Time for a body to fall radially into the sun

Romeo
Apr 11, 2005 · Replies 4 · May 7, 2005

Replies: 4

Is the Universe Really Up for Sale on eBay?

meteor
May 6, 2005 · Replies 17 · May 7, 2005

Replies: 17

Undergrad How is the actual size of a black hole calculated?

UrbanXrisis
Apr 26, 2005 · Replies 18 · May 7, 2005

Replies: 18

sidebar

Astronomy

Astronomy is the scientific study of celestial objects and phenomena beyond Earth's atmosphere. It encompasses the observation and analysis of stars, planets, galaxies, and other celestial bodies, as well as the broader exploration of the universe's origins, structure, and evolution.

Astronomers employ a variety of tools, including telescopes, satellites, and advanced instrumentation, to gather data and uncover the mysteries of the cosmos. The field addresses questions about the nature of dark matter, the expansion of the universe, and the potential for extraterrestrial life.

Astronomy not only contributes to our understanding of the cosmos but also inspires wonder and curiosity about the vastness and complexity of the universe we inhabit.

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