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Astronomy and Astrophysics Forum

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

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Graduate Massive objects in the immediate solar neighbourhood

Apr 15, 2005 · Replies 23 · May 6, 2005

Replies: 23

Views: 4K

Graduate Could a local black hole exists undetected?

May 6, 2005 · Replies 2 · May 6, 2005

Replies: 2

Views: 3K

Undergrad Did Einstein believe in black holes?

May 6, 2005 · Replies 1 · May 6, 2005

Replies: 1

Views: 2K

High School Big Bang Project Ideas: Get Creative!

May 2, 2005 · Replies 8 · May 6, 2005

Replies: 8

Views: 15K

Graduate A nice reality check on cosmology.

May 5, 2005 · Replies 1 · May 5, 2005

Replies: 1

Views: 2K

Graduate Calculating Solar Neutrino Emission Using p-p Chain Energies

May 4, 2005 · Replies 1 · May 4, 2005

Replies: 1

Views: 3K

Graduate Another MOND prediction confirmed.

Apr 28, 2005 · Replies 16 · May 4, 2005

Replies: 16

Views: 4K

Graduate Difference between BH's and BH's?

May 2, 2005 · Replies 9 · May 4, 2005

Replies: 9

Views: 3K

Undergrad What Is the Luminosity Distance Relationship?

May 4, 2005 · Replies 5 · May 4, 2005

Replies: 5

Views: 4K

Graduate Cosmological constant and Dark energy

Apr 29, 2005 · Replies 11 · May 4, 2005

Replies: 11

Views: 3K

Undergrad Redshift & Blueshift: Is There a Consensus?

Apr 24, 2005 · Replies 5 · May 4, 2005

Replies: 5

Views: 3K

Space Travel n size of traveller

Apr 20, 2005 · Replies 7 · May 4, 2005

Replies: 7

Views: 2K

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

May 3, 2005 · Replies 5 · May 4, 2005

Replies: 5

Views: 3K

High School Could Jupiter Be a Failed Star?

Apr 29, 2005 · Replies 36 · May 4, 2005

2

Replies: 36

Views: 9K

High School Studying Neptune: Investigating the Unknown

Apr 23, 2005 · Replies 7 · May 3, 2005

Replies: 7

Views: 4K

High School Questions About the Sky: An Array of Questions

May 2, 2005 · Replies 7 · May 3, 2005

Replies: 7

Views: 3K

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

Apr 26, 2005 · Replies 10 · May 3, 2005

Replies: 10

Views: 5K

Graduate Can We Create Miniature Black Holes at Particle Accelerators?

May 2, 2005 · Replies 1 · May 3, 2005

Replies: 1

Views: 2K

Graduate New MOND paper: Pointecouteau and Silk

May 2, 2005 · Replies 2 · May 3, 2005

Replies: 2

Views: 3K

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

May 1, 2005 · Replies 3 · May 2, 2005

Replies: 3

Views: 2K

Big Bang Article - Early Universe more Fluid like

Apr 22, 2005 · Replies 1 · May 2, 2005

Replies: 1

Views: 2K

Graduate Process noise of satellite orbit determination

May 2, 2005 · Replies 1 · May 2, 2005

Replies: 1

Views: 4K

Undergrad Light Bending Around Black Holes: A Real Phenomenon

May 1, 2005 · Replies 1 · May 2, 2005

Replies: 1

Views: 3K

Graduate Nuclear Physics & Cosmology Resource Books - Solution-Oriented

May 1, 2005 · Replies 1 · May 1, 2005

Replies: 1

Views: 3K

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

Apr 30, 2005 · Replies 1 · May 1, 2005

Replies: 1

Views: 3K

Graduate What is the Cosmological Natural Selection theory?

Apr 19, 2005 · Replies 72 · May 1, 2005

3

Replies: 72

Views: 10K

Graduate Trying to make sense of the time in spacetime

Apr 30, 2005 · Replies 1 · Apr 30, 2005

Replies: 1

Views: 2K

Astronomers photograph extra-solar planet

Apr 1, 2005 · Replies 4 · Apr 30, 2005

Replies: 4

Views: 5K

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

Apr 28, 2005 · Replies 9 · Apr 29, 2005

Replies: 9

Views: 3K

Is This the Most Stunning Space Animation Online?

Apr 29, 2005 · Replies 2 · Apr 29, 2005

Replies: 2

Views: 4K

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

Apr 28, 2005 · Replies 3 · Apr 28, 2005

Replies: 3

Views: 6K

Weird Project Idea: Help Needed for Report Container

Apr 26, 2005 · Replies 2 · Apr 27, 2005

Replies: 2

Views: 3K

Graduate Understanding Standing Waves & How They Fit in Black Holes

Apr 23, 2005 · Replies 5 · Apr 27, 2005

Replies: 5

Views: 3K

Stunning New Hubble Photo of Whirlpool Galaxy M51

Apr 26, 2005 · Replies 2 · Apr 27, 2005

Replies: 2

Views: 3K

Graduate Universe AgeSize with respect to DM?

Apr 25, 2005 · Replies 3 · Apr 26, 2005

Replies: 3

Views: 2K

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

Apr 26, 2005 · Replies 4 · Apr 26, 2005

Replies: 4

Views: 3K

Undergrad How Would You Navigate After Using a Warp Drive?

Apr 19, 2005 · Replies 42 · Apr 26, 2005

2

Replies: 42

Views: 8K

High School Sun Rise Laser Cannon Aiming - Unraveling the Mystery

Apr 20, 2005 · Replies 4 · Apr 25, 2005

Replies: 4

Views: 3K

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

Apr 16, 2005 · Replies 28 · Apr 25, 2005

Replies: 28

Views: 5K

High School Can a Gong in Space Vibrate Without Sound?

Apr 23, 2005 · Replies 2 · Apr 23, 2005

Replies: 2

Views: 2K

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

Jan 21, 2005 · Replies 13 · Apr 23, 2005

Replies: 13

Views: 6K

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

Apr 19, 2005 · Replies 6 · Apr 22, 2005

Replies: 6

Views: 4K

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

Apr 10, 2005 · Replies 9 · Apr 22, 2005

Replies: 9

Views: 4K

High School Top 10 Hands-On Astronomy Activities?

Apr 21, 2005 · Replies 7 · Apr 22, 2005

Replies: 7

Views: 6K

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

Apr 19, 2005 · Replies 16 · Apr 22, 2005

Replies: 16

Views: 4K

Possible threat: passenger airplane denied access to US airspace

Apr 17, 2005 · Replies 27 · Apr 21, 2005

Replies: 27

Views: 4K

Graduate White Dwarfs: Structural & Evolutionary Overview

Apr 21, 2005 · Replies 2 · Apr 21, 2005

Replies: 2

Views: 3K

Graduate Big Bang = Big Flow (RHIC Results)

Apr 20, 2005 · Replies 5 · Apr 21, 2005

Replies: 5

Views: 3K

Name two things that signifify a trip around the sun

Apr 14, 2005 · Replies 9 · Apr 20, 2005

Replies: 9

Views: 25K

Graduate Could Light Energy Loss Explain the Expansion of Space?

Apr 15, 2005 · Replies 18 · Apr 20, 2005

Replies: 18

Views: 3K

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

Apr 18, 2005 · Replies 6 · Apr 20, 2005

Replies: 6

Views: 3K

Graduate What Mathematical Tool Measures the Curvature of Space?

Apr 10, 2005 · Replies 21 · Apr 19, 2005

Replies: 21

Views: 3K

High School Is Teegarden's star really that close?

Mar 3, 2005 · Replies 12 · Apr 19, 2005

Replies: 12

Views: 4K

Graduate How to find the size of the universe?

Apr 15, 2005 · Replies 19 · Apr 19, 2005

Replies: 19

Views: 4K

High School Temperature of Space - Facts & Figures

Apr 14, 2005 · Replies 28 · Apr 19, 2005

Replies: 28

Views: 5K

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

Apr 19, 2005 · Replies 2 · Apr 19, 2005

Replies: 2

Views: 2K

Graduate Question regarding accellerating expansion of the universe.

Mar 26, 2005 · Replies 36 · Apr 19, 2005

2

Replies: 36

Views: 6K

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

Mar 18, 2005 · Replies 15 · Apr 19, 2005

Replies: 15

Views: 5K

Graduate What Exactly is a Degenerate Gas?

Apr 16, 2005 · Replies 6 · Apr 19, 2005

Replies: 6

Views: 10K

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

Apr 16, 2005 · Replies 9 · Apr 19, 2005

Replies: 9

Views: 3K

Graduate Interstellar medium: Theory and models.

Dec 24, 2004 · Replies 34 · Apr 19, 2005

2

Replies: 34

Views: 8K

Graduate Dark matter, energy and negetive gravity

Apr 16, 2005 · Replies 12 · Apr 18, 2005

Replies: 12

Views: 4K

Graduate Gravitation, inertia, and the vacuum

Apr 15, 2005 · Replies 7 · Apr 18, 2005

Replies: 7

Views: 4K

Graduate MOND & TeVeS: Unifying Dark Matter & Dark Energy

Apr 13, 2005 · Replies 3 · Apr 17, 2005

Replies: 3

Views: 3K

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

Apr 17, 2005 · Replies 6 · Apr 17, 2005

Replies: 6

Views: 3K

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

Apr 12, 2005 · Replies 42 · Apr 17, 2005

2

Replies: 42

Views: 6K

Undergrad Effects of spontaneous gravity reduction

Apr 15, 2005 · Replies 3 · Apr 17, 2005

Replies: 3

Views: 4K

High School What Causes the Moon to Appear Orange?

Mar 31, 2005 · Replies 19 · Apr 15, 2005

Replies: 19

Views: 7K

Undergrad Not wanting to belive the acceleration universe model

Apr 12, 2005 · Replies 30 · Apr 15, 2005

2

Replies: 30

Views: 4K

Graduate Bad Science and the Anthropic Cosmological Principle

Apr 8, 2005 · Replies 29 · Apr 15, 2005

Replies: 29

Views: 6K

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

Apr 8, 2005 · Replies 5 · Apr 14, 2005

Replies: 5

Views: 4K

Undergrad Science’s doomsday team vs. the asteroids

Apr 10, 2005 · Replies 43 · Apr 14, 2005

2

Replies: 43

Views: 8K

High School Predicting Solar and Lunar Eclipses

Apr 9, 2005 · Replies 17 · Apr 14, 2005

Replies: 17

Views: 5K

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

Apr 9, 2005 · Replies 8 · Apr 14, 2005

Replies: 8

Views: 3K

Graduate Could Quantum Fluctuations Happen Even

Apr 12, 2005 · Replies 5 · Apr 13, 2005

Replies: 5

Views: 3K

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

Mar 30, 2005 · Replies 23 · Apr 13, 2005

Replies: 23

Views: 13K

Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth

Mar 19, 2005 · Replies 30 · Apr 11, 2005

2

Replies: 30

Views: 11K

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

Apr 11, 2005 · Replies 3 · Apr 11, 2005

Replies: 3

Views: 2K

Undergrad How Many Supernovas Have Occurred Since the Big Bang?

Apr 10, 2005 · Replies 24 · Apr 11, 2005

Replies: 24

Views: 6K

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

Apr 9, 2005 · Replies 3 · Apr 11, 2005

Replies: 3

Views: 6K

Graduate Estimating Mass of Universe Within Horizon

Apr 7, 2005 · Replies 25 · Apr 11, 2005

Replies: 25

Views: 4K

Graduate Do black holes have multiple singularities?

Apr 2, 2005 · Replies 16 · Apr 11, 2005

Replies: 16

Views: 5K

Graduate Redening of light from a certian density of particals

Apr 11, 2005 · Replies 1 · Apr 11, 2005

Replies: 1

Views: 2K

Undergrad Escape Velocity Given Radius of 2 Objects

Apr 10, 2005 · Replies 4 · Apr 11, 2005

Replies: 4

Views: 4K

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

Apr 8, 2005 · Replies 1 · Apr 10, 2005

Replies: 1

Views: 2K

Graduate The Possibility of a Black Hole Big Bang

Apr 7, 2005 · Replies 5 · Apr 10, 2005

Replies: 5

Views: 2K

Undergrad 3 Questions - Why are some orbits

Apr 8, 2005 · Replies 3 · Apr 9, 2005

Replies: 3

Views: 2K

Graduate Can Spacetime Foam Create New Universes?

Apr 8, 2005 · Replies 3 · Apr 9, 2005

Replies: 3

Views: 2K

Stargazing A Partial Solar Eclipse Viewing Guide

Apr 8, 2005 · Replies 1 · Apr 9, 2005

Replies: 1

Views: 3K

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

Apr 8, 2005 · Replies 8 · Apr 9, 2005

Replies: 8

Views: 8K

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

Apr 8, 2005 · Replies 1 · Apr 8, 2005

Replies: 1

Views: 3K

Graduate Does the big bang imply a finite universe

Mar 23, 2005 · Replies 47 · Apr 8, 2005

2

Replies: 47

Views: 10K

Graduate Shape of the Universe: Flat or Curved?

Apr 7, 2005 · Replies 1 · Apr 8, 2005

Replies: 1

Views: 2K

Graduate Why is it difficult to measure the perihelion advance of the planet Venus? Help

Mar 28, 2005 · Replies 7 · Apr 8, 2005

Replies: 7

Views: 4K

Graduate Are Magnetic Anomalies the Cause of Black Hole Eruptions?

Apr 7, 2005 · Replies 5 · Apr 7, 2005

Replies: 5

Views: 2K

Graduate The Hubble Length and Mass of the Universe

Mar 26, 2005 · Replies 21 · Apr 7, 2005

Replies: 21

Views: 12K

Graduate Habitable Planets: Disaster Zones and Safe Havens

Apr 6, 2005 · Replies 16 · Apr 6, 2005

Replies: 16

Views: 3K

Graduate Habitable Worlds circling non-Sol like stars

Apr 6, 2005 · Replies 3 · Apr 6, 2005

Replies: 3

Views: 3K

Undergrad Moon Moving Away: Effects & Possibilities

Apr 6, 2005 · Replies 1 · Apr 6, 2005

Replies: 1

Views: 2K

Graduate Disk Scale Length Help: Troubleshooting for Science Fair

Apr 5, 2005 · Replies 3 · Apr 6, 2005

Replies: 3

Views: 5K

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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