Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Classical Physics
Quantum Physics
Quantum Interpretations
Special and General Relativity
Atomic and Condensed Matter
Nuclear and Particle Physics
Beyond the Standard Model
Cosmology
Astronomy and Astrophysics
Other Physics Topics
Trending
Log in
Register
What's new
Classical Physics
Quantum Physics
Quantum Interpretations
Special and General Relativity
Atomic and Condensed Matter
Nuclear and Particle Physics
Beyond the Standard Model
Cosmology
Astronomy and Astrophysics
Other Physics Topics
Menu
Log in
Register
Navigation
More options
Style variation
System
Light
Dark
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Astronomy and Cosmology
Astronomy and Astrophysics Forum
Post thread
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.
Prev
1
…
Go to page
Go
69
70
71
72
73
…
Go to page
Go
138
Next
First
Prev
71 of 138
Go to page
Go
Next
Last
Filters
Show only:
Loading…
Title
(No prefix)
(No prefix)
B
I
A
Stargazing
(No prefix)
B
I
A
Stargazing
Calculating the size of planets from length of days.
May 15, 2011
Replies
4
Views
5K
Is the Expanding Universe Slowing Down According to Age?
May 15, 2011
Replies
4
Views
3K
Is Faster-Than-Light Space Travel Possible with New Technology?
May 14, 2011
Replies
18
Views
6K
Are Asteroids Outside Our Solar System and the Moon Affected by Impact Tsunamis?
May 14, 2011
Replies
6
Views
3K
Light approaching the event horizon
May 14, 2011
Replies
5
Views
3K
Do Galaxies Move? Rotation Around Something?
May 14, 2011
Replies
5
Views
5K
What are the consequences of pole reversals on Earth
May 14, 2011
Replies
9
Views
6K
Satellite's Tidal Force & Orientation: Can It Affect Interlock?
May 14, 2011
Replies
4
Views
3K
Baby Universes? - Leonard Susskind's Hyperspace Theory
May 13, 2011
Replies
1
Views
2K
Why the plane of the rings is vertical to the rotation axis of Saturn?
May 13, 2011
Replies
11
Views
7K
Understanding Time in Physics: Questioning the Effects of Gravity on Black Holes
May 12, 2011
Replies
20
Views
5K
Can a collapsing star only form a black hole if it has a companion?
May 12, 2011
Replies
7
Views
4K
Thinking Outside of Space: Big Bang Theory and Beyond
May 12, 2011
Replies
9
Views
4K
What Happens When You Increase an Extremal Black Hole's Charge?
May 11, 2011
Replies
5
Views
2K
If we have two parallel plane in the space in addition to another two
May 11, 2011
Replies
2
Views
2K
Elliptic orbit of earth round the sun
May 11, 2011
Replies
1
Views
4K
Need VERY recent paper in observational astronomy for journal club presentation
May 11, 2011
Replies
1
Views
3K
Black holes and Event Horizon: Q's ?
May 11, 2011
Replies
16
Views
7K
Planets in Deep Space: Can They Escape Orbit?
May 10, 2011
Replies
15
Views
5K
What Happens at a Black Hole Singularity?
May 10, 2011
Replies
2
Views
3K
Stargazing
What type of binoculars are best for stargazing in a light-polluted area?
May 10, 2011
Replies
5
Views
3K
What Would You See at the Threshold of the Expanding Universe?
May 10, 2011
Replies
15
Views
3K
Molecular Cloud Clumping Question
May 9, 2011
Replies
6
Views
4K
[QUESTION]Dark energy could it be an explosion?
May 9, 2011
Replies
5
Views
3K
[Question] What would happen if gravity were removed?
May 9, 2011
Replies
28
Views
8K
Argument against the existence of black holes?
May 8, 2011
Replies
17
Views
8K
Will the Moon's Recession from Earth Ever Cease?
May 8, 2011
Replies
1
Views
2K
What does tidal gravity feel like?
May 7, 2011
Replies
11
Views
4K
Float & Fly Freely: Differentiating Space & Earth
May 7, 2011
Replies
1
Views
2K
Planet positions and gravitational effects
May 7, 2011
Replies
3
Views
2K
Is Time Truly the Fourth Dimension in Spacetime?
May 7, 2011
Replies
20
Views
8K
Gravitational Red Shift at the center of a mass
May 6, 2011
Replies
1
Views
2K
Primordial Black Hole as nucleus for gravitic atom
May 6, 2011
Replies
11
Views
4K
Are Hot Jupiters in Stable Orbital Resonance?
May 6, 2011
Replies
4
Views
3K
Unraveling the Mystery of the Sun's Composition and the Fate of Matter Within
May 6, 2011
Replies
4
Views
2K
How Much Potassium Nitrate is Needed to Propel a 10 kg Rocket into Orbit?
May 6, 2011
Replies
3
Views
2K
Can We See All Galaxies in the Universe?
May 6, 2011
Replies
17
Views
5K
Good wallpaper pics of our red sun from earth
May 6, 2011
Replies
7
Views
5K
Question about the color of galaxies & nebulae
May 6, 2011
Replies
19
Views
10K
Determine body properties by visual spectrum?
May 6, 2011
Replies
4
Views
3K
Stargazing
Muon Telescope: The Universe's Secrets
May 5, 2011
Replies
4
Views
3K
The orbital eccentricity change of the Earth ?
May 4, 2011
Replies
5
Views
3K
Learning Basics of Stellar Modelling
May 4, 2011
Replies
8
Views
4K
Could Vacuum Energy Be the Key to Understanding Dark Energy?
May 4, 2011
2
Replies
75
Views
16K
Who's the Top Expert in Black Hole & Time Travel Theories?
May 4, 2011
Replies
10
Views
9K
I need someone who knows what nebulae look like well to look at these
May 4, 2011
Replies
3
Views
3K
Intrinsic Redshift: Current Status and Research
May 3, 2011
Replies
9
Views
5K
Habitable exoplanets of white dwarfs
May 3, 2011
Replies
5
Views
4K
Lone wolf planets able to support subglacial ocean life?
May 3, 2011
Replies
18
Views
6K
Low mass post-main-sequence on HR diagram
May 3, 2011
Replies
6
Views
3K
A problem from Binney and Tremaine
May 3, 2011
Replies
2
Views
3K
Galactic angular velocity of interstellar cloud
May 1, 2011
Replies
1
Views
3K
Why do comets tails come out of the front and curve around to the back?
May 1, 2011
Replies
2
Views
4K
Novice Astrophotographer Discovers Supernova
May 1, 2011
Replies
17
Views
5K
Laser pointer for start viewing: something affordable?
May 1, 2011
Replies
13
Views
5K
Were the First Stars in the Universe Fast Spinners?
Apr 30, 2011
Replies
2
Views
2K
How can you discover new things in Astronomy without a PhD ?
Apr 29, 2011
Replies
8
Views
4K
How to Calculate the Heat Received by Newly Discovered Extrasolar Planets?
Apr 28, 2011
Replies
1
Views
3K
Acceleration in elliptical orbits ?
Apr 28, 2011
Replies
3
Views
5K
Looking for reading material on extrasolar planet detection
Apr 28, 2011
Replies
3
Views
3K
Does moving at high speeds actually slow down time?
Apr 28, 2011
Replies
8
Views
7K
Meteor radiant angle. Is this computation right?
Apr 28, 2011
Replies
6
Views
4K
Intro and a Question About Ellipticity
Apr 28, 2011
Replies
3
Views
3K
What Should Be Discussed in a Report on Core Collapse of Massive Stars?
Apr 27, 2011
Replies
5
Views
4K
Space Debris Removal: Where to Publish Idea?
Apr 27, 2011
Replies
10
Views
4K
Help with trying to spot the ISS
Apr 27, 2011
Replies
9
Views
4K
Does Traveling Through a Wormhole Violate the Law of Conservation of Mass?
Apr 27, 2011
Replies
2
Views
3K
Star variable relations. In need of further insight
Apr 26, 2011
Replies
10
Views
3K
Stargazing
Huge difference between a 6 dobsonian and a 10 ?
Apr 26, 2011
Replies
2
Views
1K
Is the Old Model of the Universe Still Valid?
Apr 26, 2011
Replies
10
Views
4K
Help with Modeling Solar Wobble for Pre-Calc Project
Apr 26, 2011
Replies
8
Views
4K
Stargazing
Why can this telescope only focus on very near objects?
Apr 26, 2011
Replies
5
Views
4K
Where's the energy go for planets axis inclined from orbital plane?
Apr 25, 2011
Replies
7
Views
4K
Can Galaxies Have Two Nuclei Without Merging?
Apr 25, 2011
Replies
2
Views
3K
Odds of Finding Alien Life: An Exploration
Apr 25, 2011
2
Replies
78
Views
17K
Unraveling the Mystery of Dark Matter and Its Relationship with Black Holes
Apr 25, 2011
Replies
5
Views
2K
Does dark matter fall into a black hole, and create radiation
Apr 24, 2011
Replies
13
Views
5K
How Much Longer Does an Atomic Clock Run on the Moon Compared to Earth?
Apr 23, 2011
Replies
3
Views
4K
Could a bullet shot from a spaceship orbiting Earth escape the planet?
Apr 23, 2011
Replies
9
Views
5K
Why Do Physicists Consider Black Holes Something?
Apr 22, 2011
Replies
7
Views
3K
Are the Wonders of the Universe waiting to be discovered?
Apr 22, 2011
Replies
1
Views
3K
Can a 1kg Black Hole Be Manipulated and Moved?
Apr 22, 2011
Replies
5
Views
6K
Does Time have a mathematical equation or Law?
Apr 21, 2011
Replies
9
Views
6K
Space Junk Removal: Is Laser Technology the Answer?
Apr 21, 2011
Replies
3
Views
2K
Are Stars Limited to Galaxies or Can They Exist in Intergalactic Space?
Apr 21, 2011
Replies
8
Views
6K
What can I do if I study astrophysics?
Apr 20, 2011
Replies
4
Views
4K
Stargazing
What's a good, affordable telescope for someone who's never owned one
Apr 20, 2011
Replies
8
Views
3K
How Does the Angle of Impact Affect the Depth of Meteorite Craters?
Apr 20, 2011
Replies
5
Views
5K
How is it possible the universe is infinite?
Apr 19, 2011
Replies
13
Views
3K
Can anyone please suggest me a project topic?
Apr 19, 2011
Replies
6
Views
4K
Objects as L3 and L4 at once - possible?
Apr 19, 2011
Replies
7
Views
3K
Is life on other planets limited by the elements present?
Apr 19, 2011
Replies
11
Views
3K
What Are the Dangers of Space Travel?
Apr 19, 2011
Replies
9
Views
4K
Its crazy to think its all actually out there
Apr 19, 2011
Replies
25
Views
6K
Darkness-Free Day: A Sign of Jesus's Birth?
Apr 19, 2011
Replies
30
Views
8K
Physics Projects for Teenagers - Charles's Quest
Apr 18, 2011
Replies
5
Views
2K
What is the Definition of the Wave Zone in Potential Calculations?
Apr 18, 2011
Replies
2
Views
4K
Easter dating spreadsheet for Excel/OpenOffice
Apr 18, 2011
Replies
1
Views
3K
Required mass for hydrogen burning in stars
Apr 17, 2011
Replies
4
Views
2K
Stargazing
Telescope Limitations: What to Know
Apr 16, 2011
Replies
8
Views
8K
Prev
1
…
Go to page
Go
69
70
71
72
73
…
Go to page
Go
138
Next
First
Prev
71 of 138
Go to page
Go
Next
Last
Forums
Astronomy and Cosmology
Back
Top