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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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High School How Does Moon Dust Exist Without Weathering?

Mk
Dec 25, 2003 · Replies 7 · Dec 26, 2003

Replies: 7

Graduate What Really Happened Before the Big Bang?

deda
Dec 22, 2003 · Replies 5 · Dec 24, 2003

Replies: 5

High School Something odd, I need an explanation desperately

startic84
Dec 21, 2003 · Replies 5 · Dec 23, 2003

Replies: 5

Are Miss World and Miss Universe Two Different Events?

Saint
Dec 23, 2003 · Replies 3 · Dec 23, 2003

Replies: 3

Graduate Is God in the Details of the Universe?

Carlos Hernandez
Dec 17, 2003 · Replies 8 · Dec 23, 2003

Replies: 8

MENSA Usenet Group Discuss Space Aliens

Carlos Hernandez
Dec 22, 2003 · Replies 3 · Dec 23, 2003

Replies: 3

When exactly does the year start getting shorter again?

Thomas1980
Dec 21, 2003 · Replies 1 · Dec 21, 2003

Replies: 1

Graduate Spatial folding/compression/expansion be accomplished artificially

caumaan
Dec 20, 2003 · Replies 1 · Dec 21, 2003

Replies: 1

Graduate Understanding the Effects of Earth's Precession on Planet Cores | Crystalinks"

Andre
Nov 10, 2003 · Replies 3 · Dec 20, 2003

Replies: 3

Graduate Calculating The Age Of The Universe

Tempest
Dec 18, 2003 · Replies 14 · Dec 19, 2003

Replies: 14

Undergrad What Happens if We Remove a Planet from the Solar System?

MathematicalPhysicist
Sep 23, 2003 · Replies 39 · Dec 19, 2003

2

Replies: 39

Graduate How Does a Singularity Form in a Collapsing Star?

chosenone
Jun 23, 2003 · Replies 14 · Dec 19, 2003

Replies: 14

High School Are There Any Isolated Black Holes? Name a Few Here

taylordnz
Dec 3, 2003 · Replies 7 · Dec 17, 2003

Replies: 7

Graduate Electromagnetic Bubble forming Gamma Ray Bursts.

ranyart
Dec 16, 2003 · Replies 2 · Dec 16, 2003

Replies: 2

Graduate Vacuum energy density and Hubble expansion

hellfire
Dec 11, 2003 · Replies 6 · Dec 16, 2003

Replies: 6

Graduate Is Dark Matter Evenly Distributed in Galaxies?

TheDonk
Dec 8, 2003 · Replies 12 · Dec 15, 2003

Replies: 12

Buy Land on the Moon: Lunar Realty Opens in Melbourne

Phobos
Oct 13, 2003 · Replies 17 · Dec 15, 2003

Replies: 17

Explore the Dreaming Universe: Discover Your Personal Reality

TheDream
Dec 13, 2003 · Replies 1 · Dec 14, 2003

Replies: 1

Undergrad Is the Moon Really Moving Away from Earth and What Would Happen If It Did?

Mentat
Dec 2, 2003 · Replies 15 · Dec 13, 2003

Replies: 15

Does Human Knowledge Have Limits?

Sir Adam
Dec 9, 2003 · Replies 3 · Dec 13, 2003

Replies: 3

Poll

Will Deep Space Exploration ever begin?

rapture
Dec 3, 2003 · Replies 11 · Dec 12, 2003

Replies: 11

Graduate Could New Pulsar Discoveries Lead to Direct Detection of Cosmic Gravity Waves?

wolram
Dec 12, 2003 · Replies 3 · Dec 12, 2003

Replies: 3

Complex space game called Ferion

jcgeuze
Dec 11, 2003 · Replies 2 · Dec 12, 2003

Replies: 2

Graduate Coaxing information out of the political universe with statistics

kat
Dec 8, 2003 · Replies 17 · Dec 11, 2003

Replies: 17

Graduate Venus possibly habitable for billions of years: Newscientist.com

Ivan Seeking
Sep 9, 2003 · Replies 12 · Dec 11, 2003

Replies: 12

Graduate What if there was only two dimensions. Space and Time.

Eepl
Dec 7, 2003 · Replies 6 · Dec 11, 2003

Replies: 6

Graduate Multi-layered spacetime creates everything.

pelastration
Nov 2, 2003 · Replies 10 · Dec 10, 2003

Replies: 10

Stargazing Telescope Q: Does Larger Diameter Mean Objects Appear Brighter?

JonnyW
Dec 8, 2003 · Replies 6 · Dec 10, 2003

Replies: 6

High School What is the constituent material of the universe?

FUNKER
Dec 8, 2003 · Replies 3 · Dec 10, 2003

Replies: 3

Graduate Is Any Part of the Universe Truly Empty?

TRUGONOWFOR
Dec 9, 2003 · Replies 2 · Dec 10, 2003

Replies: 2

Who came up with the term 'multiverse'?

madcat11
Dec 9, 2003 · Replies 3 · Dec 10, 2003

Replies: 3

Graduate Gravity: Strength in Weakness: CSM

Ivan Seeking
Sep 24, 2003 · Replies 8 · Dec 10, 2003

Replies: 8

Undergrad Kepler's Third Law: Deriving Radius3/Period2

PiRsq
Nov 15, 2003 · Replies 13 · Dec 10, 2003

Replies: 13

High School Compare Planetary Properties: Mass, Composition, Density +more

StephenPrivitera
Dec 6, 2003 · Replies 8 · Dec 9, 2003

Replies: 8

Graduate Fuel of the future is antimatter

Inquiring_Mike
Nov 17, 2003 · Replies 16 · Dec 9, 2003

Replies: 16

Undergrad Why is the universe considered to be infinite in size?

deltabourne
Dec 8, 2003 · Replies 9 · Dec 8, 2003

Replies: 9

Graduate How Do I Calculate Galactic Mass Proportional to Radius?

StephenPrivitera
Dec 8, 2003 · Replies 1 · Dec 8, 2003

Replies: 1

Graduate The Hawaii Moon Declaration (8 December, 2003)

Nereid
Dec 8, 2003 · Replies 0 · Dec 8, 2003

Replies: 0

Undergrad Modeling Planetary Temperature for an Online Game Using Limited Factors

Blissfulpain
Dec 2, 2003 · Replies 7 · Dec 8, 2003

Replies: 7

Graduate Big Bang Worries: Can We See It?

jedijesus
Dec 8, 2003 · Replies 24 · Dec 8, 2003

Replies: 24

Could Highly Advanced Extraterrestrial Beings Hold the Key to Our Evolution?

Merlin
Nov 29, 2003 · Replies 3 · Dec 8, 2003

Replies: 3

Graduate Question about light and blackholes

magus
Nov 13, 2003 · Replies 16 · Dec 8, 2003

Replies: 16

Undergrad The Collapsar Model: What Do We Know?

taylordnz
Dec 7, 2003 · Replies 2 · Dec 8, 2003

Replies: 2

Poll

Is There Affordable Technology for Capturing Paranormal Activity?

rapture
Dec 3, 2003 · Replies 7 · Dec 7, 2003

Replies: 7

Undergrad Determining stable orbits for other stars

aau
Dec 7, 2003 · Replies 4 · Dec 7, 2003

Replies: 4

Another ET thought exp (creation rant?)

Merlin
Dec 6, 2003 · Replies 3 · Dec 7, 2003

Replies: 3

Graduate Hawking Radiation 2 (different question)

Silverious
Nov 29, 2003 · Replies 9 · Dec 7, 2003

Replies: 9

Graduate Is there a connection between dark matter and supersymmetry in the universe?

jimmy p
Dec 3, 2003 · Replies 3 · Dec 6, 2003

Replies: 3

What Is the Logarithmic Map of the Universe?

chroot
Dec 4, 2003 · Replies 3 · Dec 6, 2003

Replies: 3

Exploding black holes rain down on Earth

Monique
Dec 5, 2003 · Replies 4 · Dec 5, 2003

Replies: 4

Undergrad How do solar wind particles get trapped in a planet's magnetosphere?

StephenPrivitera
Dec 4, 2003 · Replies 4 · Dec 5, 2003

Replies: 4

Aliens: Will They Fear Us or Take Our Resources?

decibel
Oct 31, 2003 · Replies 26 · Dec 5, 2003

Replies: 26

High School Why are Planetary Orbits Elliptical and not Circular?

photon
Oct 24, 2003 · Replies 17 · Dec 5, 2003

Replies: 17

Undergrad Kuiper Belt Binary Pairs: Existence Confirmed?

wolram
Dec 2, 2003 · Replies 9 · Dec 4, 2003

Replies: 9

Graduate How soon will the universe reach a lower energylevel?

QuantumNet
Nov 29, 2003 · Replies 5 · Dec 4, 2003

Replies: 5

Graduate On the hypothesis of a genuinely quantum spacetime

marcus
Nov 30, 2003 · Replies 1 · Dec 3, 2003

Replies: 1

Undergrad Is astrophysics the right path for me in grad school?

JasonZ
Dec 1, 2003 · Replies 2 · Dec 2, 2003

Replies: 2

Undergrad How can the satellite have an centrifugal force?

revesz
Nov 30, 2003 · Replies 10 · Dec 2, 2003

Replies: 10

Graduate Is a black hole a superconducter?

QuantumNet
Nov 21, 2003 · Replies 9 · Dec 2, 2003

Replies: 9

Undergrad Is the Universe's Shape Just a Matter of Perception?

Adrian Baker
Nov 19, 2003 · Replies 13 · Dec 1, 2003

Replies: 13

Graduate Is there a blackhole in the centre of EVERY galaxy?

CoolGrey6
Nov 27, 2003 · Replies 5 · Dec 1, 2003

Replies: 5

Audio needed (I think you can help)

elektrovert
Dec 1, 2003 · Replies 2 · Dec 1, 2003

Replies: 2

Space flight sim with realistic physics

Cecil
Nov 29, 2003 · Replies 3 · Nov 30, 2003

Replies: 3

Stargazing Lunar Eclipse and earth's shadow

rjstegbauer
Nov 11, 2003 · Replies 5 · Nov 30, 2003

Replies: 5

Undergrad Does the univeres have size or shape?

phildoe
Nov 29, 2003 · Replies 2 · Nov 30, 2003

Replies: 2

Undergrad If a massive body fails to become a star could it still suport planetary system?

wolram
Nov 30, 2003 · Replies 1 · Nov 30, 2003

Replies: 1

Phobos over Mars: Viking 2's Visual Perspective

Nereid
Nov 29, 2003 · Replies 3 · Nov 29, 2003

Replies: 3

Graduate How Does a Particle Gain Negative Energy in Hawking Radiation?

Silverious
Nov 24, 2003 · Replies 15 · Nov 29, 2003

Replies: 15

Graduate Could Our Universe Be Reborn from a Hyperspherical Collapse?

Horus
Nov 18, 2003 · Replies 12 · Nov 29, 2003

Replies: 12

Graduate Did someone construct one to the universe in modern times?

Speculatrix
Nov 28, 2003 · Replies 1 · Nov 28, 2003

Replies: 1

Graduate The density of Mass relative to a critical mass

Luquido Lumino
Nov 28, 2003 · Replies 1 · Nov 28, 2003

Replies: 1

Graduate Is Gravity the Key to Maintaining the Universe's Balance?

Tyger
May 13, 2003 · Replies 24 · Nov 28, 2003

Replies: 24

Undergrad Ecliptic Plane's relation to Galactic Plane

Glenn
Nov 26, 2003 · Replies 6 · Nov 28, 2003

Replies: 6

Graduate Spectroscopic Observation of Anomalous Redshift in NGC 7603

wolram
Nov 14, 2003 · Replies 18 · Nov 28, 2003

Replies: 18

Space Station Crew Discovers Dangerous Leak Between Pods - Apollo 13 Parallels

Zeropaxx
Nov 27, 2003 · Replies 2 · Nov 28, 2003

Replies: 2

Graduate Could someone tell me what is the best school in cosmology and high energy?

alanzhu
Nov 26, 2003 · Replies 1 · Nov 27, 2003

Replies: 1

Undergrad How do Oort Cloud objects become short-period comets?

O Great One
Nov 25, 2003 · Replies 3 · Nov 27, 2003

Replies: 3

Undergrad Expaning universe and colliding galaxies

jamminji
Nov 19, 2003 · Replies 4 · Nov 27, 2003

Replies: 4

Graduate CMB anisotropies and matter structures

hellfire
Nov 23, 2003 · Replies 1 · Nov 26, 2003

Replies: 1

What Will Be the Future of US Space Policy?

Phobos
Nov 25, 2003 · Replies 1 · Nov 26, 2003

Replies: 1

Where Can I Find Major Planetary Observatories?

wolram
Nov 24, 2003 · Replies 3 · Nov 25, 2003

Replies: 3

Graduate Oscillating Unvierse Theory and the 2nd law of Thermodynamics

Glenn
Nov 7, 2003 · Replies 12 · Nov 25, 2003

Replies: 12

Undergrad Is the Ptolemaic System Still Relevant in Modern Astronomy?

arcnets
Nov 23, 2003 · Replies 4 · Nov 25, 2003

Replies: 4

Undergrad A very interesting vision of the universe

cala
Nov 19, 2003 · Replies 2 · Nov 25, 2003

Replies: 2

Graduate How Can Galaxies Collide if the Universe is Expanding?

HIGHLYTOXIC
Oct 16, 2003 · Replies 8 · Nov 25, 2003

Replies: 8

Stargazing Total Eclipse of Sol in Antarctica (24/11/03)

Nommos Prime (Dogon)
Nov 24, 2003 · Replies 1 · Nov 24, 2003

Replies: 1

Upcoming Black Hole Physics Lectures in West Midlands?

Magg$
Nov 24, 2003 · Replies 1 · Nov 24, 2003

Replies: 1

Graduate What is the true nature of Space and the Universe?

HIGHLYTOXIC
Nov 21, 2003 · Replies 4 · Nov 24, 2003

Replies: 4

Undergrad Black holes with nothing left to ingest.

Nibles
Nov 20, 2003 · Replies 5 · Nov 24, 2003

Replies: 5

Undergrad Collisions of large bodies starting at stationary positions

Silverious
Nov 23, 2003 · Replies 3 · Nov 24, 2003

Replies: 3

Undergrad Extrasolar planets discovered so far

wolram
Nov 20, 2003 · Replies 5 · Nov 24, 2003

Replies: 5

High School Terrible newbie question - what should I see

jamminji
Nov 19, 2003 · Replies 8 · Nov 24, 2003

Replies: 8

Graduate Only four fundamental forces in the universe?

einsteinian77
Nov 16, 2003 · Replies 24 · Nov 23, 2003

Replies: 24

Graduate The Origin of Venus's Retrograde Rotation: A Collisional Hypothesis

ion
Nov 22, 2003 · Replies 5 · Nov 23, 2003

Replies: 5

Graduate Gravitational waves and CMB polarization

hellfire
Nov 22, 2003 · Replies 0 · Nov 22, 2003

Replies: 0

Graduate Is the Universe a Hologram According to Quantum Mechanics Research?

wuliheron
Aug 7, 2003 · Replies 6 · Nov 22, 2003

Replies: 6

High School How Much of Space is Habitable?

wolram
Oct 31, 2003 · Replies 5 · Nov 22, 2003

Replies: 5

Graduate Discovering the Radius of a Planet with a Man, a Parachute, and a Satellite

johnW
Nov 21, 2003 · Replies 1 · Nov 22, 2003

Replies: 1

Stargazing Building a Refractor Telescope - Tips & Guides

bombshop
Nov 7, 2003 · Replies 8 · Nov 21, 2003

Replies: 8

Graduate Do Black Holes Create New Universes?

photon
Nov 20, 2003 · Replies 13 · Nov 21, 2003

Replies: 13

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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