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NASA-funded pulsed plasma rocket concept aims to send astronauts to Mars in 2 months
Admin
Today at 6:00 AM
Article Commentary
Replies
3
Views
47
Article Commentary
Today at 12:23 PM
danR
Does a cosmic 'glitch' in gravity challenge Albert Einstein's greatest theory?
Admin
May 3, 2024
Article Commentary
2
3
Replies
73
Views
2K
Article Commentary
May 11, 2024
Atlan0001
A
Star Wars: The Phantom Menace' at 25: Who are the angels on the moons of Iego?
Admin
Today at 11:05 AM
Article Commentary
Replies
0
Views
16
Article Commentary
Today at 11:05 AM
Admin
A
From a drop of water....
Atlan0001
Apr 21, 2023
Cosmology
17
18
19
20
21
Replies
522
Views
57K
Cosmology
Yesterday at 7:01 PM
Atlan0001
A
Goodbye infinity and all that infinite singularity and infinite density descriptions
Catastrophe
May 10, 2024
Cosmology
2
Replies
32
Views
1K
Cosmology
Wednesday at 5:01 AM
Catastrophe
M
An introduction to Refractional redshift, and how it was confused with gravitational redshift
Marvas
Yesterday at 2:12 AM
Astronomy
Replies
15
Views
188
Astronomy
Yesterday at 9:25 PM
Marvas
M
Why a giant 'cold spot' in the cosmic microwave background has long perplexed astronomers
Admin
Today at 9:01 AM
Article Commentary
Replies
1
Views
24
Article Commentary
Today at 12:37 PM
Homer10
More on the Big Bang - what was before t = 0?
Catastrophe
Friday at 4:25 AM
Cosmology
Replies
12
Views
281
Cosmology
Today at 12:29 PM
Atlan0001
A
Warp drives' may actually be possible someday, new study suggests
Admin
May 7, 2024
Article Commentary
2
Replies
33
Views
1K
Article Commentary
May 11, 2024
Atlan0001
A
Everything we know about 'A Quiet Place: Day One
Admin
Today at 10:00 AM
Article Commentary
Replies
0
Views
17
Article Commentary
Today at 10:00 AM
Admin
Bright green fireball lights up the skies over Portugal and Spain (photos)
Admin
Today at 9:06 AM
Article Commentary
Replies
0
Views
21
Article Commentary
Today at 9:06 AM
Admin
S
Question
How does Earth have a magnetic field when it doesn't meet the electromagnetic requirements (an iron core is insufficient)?
Space Crumpet
May 10, 2024
Cosmology
2
Replies
26
Views
890
Cosmology
Friday at 10:12 AM
arturo.v.dominguez@gmail.
Our Solar System and Life Out There
arturo.v.dominguez@gmail.
Monday at 9:37 AM
Our Solar System
Replies
22
Views
609
Our Solar System
Friday at 8:43 PM
Catastrophe
Blue Origin launches 1st crewed spaceflight since August 2022 (video)
Admin
Today at 11:05 AM
Article Commentary
Replies
0
Views
10
Article Commentary
Today at 11:05 AM
Admin
Equations known
space101
May 9, 2024
Astronomy
Replies
18
Views
793
Astronomy
Friday at 1:42 PM
COLGeek
I don't see any evidence of aliens.' SpaceX's Elon Musk says Starlink satellites have never dodged UFOs
Admin
May 9, 2024
Article Commentary
2
Replies
31
Views
783
Article Commentary
Yesterday at 12:30 PM
billslugg
Q
Is Space a Function of Tme Flow?
Questioner
Monday at 7:47 PM
Cosmology
Replies
11
Views
414
Cosmology
Yesterday at 6:29 PM
Atlan0001
A
Introduce yourself! (And show us your swag)
sward
Oct 14, 2019
Forum Feedback & Competitions
8
9
10
11
12
Replies
284
Views
121K
Forum Feedback & Competitions
Today at 4:33 AM
Catastrophe
This time, we take it from no one: Why opening the High Frontier of space can be different (op-ed)
Admin
Tuesday at 6:05 AM
Article Commentary
Replies
24
Views
341
Article Commentary
Friday at 11:28 PM
Questioner
Q
US Space Force is launching more missions than ever. Lawmakers worry America's spaceports can't keep up
Admin
Friday at 3:05 PM
Article Commentary
Replies
2
Views
129
Article Commentary
Yesterday at 4:10 PM
Unclear Engineer
U
M
Shapiro time delay is caused by Refraction. Gravitational time dilation does not exist.
Marvas
Yesterday at 5:10 AM
Astronomy
Replies
0
Views
91
Astronomy
Yesterday at 5:10 AM
Marvas
M
J
unusual sight in the night sky.
Jon Mayer
May 11, 2024
Astronomy
Replies
7
Views
459
Astronomy
Thursday at 9:39 AM
Jon Mayer
J
Question
How to study astrophysics at home
Sage.In.Space
Wednesday at 7:36 PM
Astronomy
Replies
3
Views
207
Astronomy
Thursday at 8:42 AM
Sage.In.Space
God of Destruction' asteroid Apophis will come to Earth in 2029 — and it could meet some tiny spacecraft
Admin
May 10, 2024
Article Commentary
Replies
15
Views
479
Article Commentary
Friday at 4:02 AM
Catastrophe
In the Milky Way, 3 intruder stars are 'on the run' — in the wrong direction
Admin
Thursday at 9:05 AM
Article Commentary
Replies
5
Views
165
Article Commentary
Yesterday at 2:42 PM
Torbjorn Larsson
T
Question
CYCLIC UNIVERSE
Harry Costas
Sep 23, 2022
Cosmology
3
4
5
6
7
Replies
155
Views
32K
Cosmology
Apr 26, 2024
Harry Costas
Junk from a SpaceX Dragon 'trunk' may have crashed into a Canadian farmer's field (photos)
Admin
Friday at 9:05 AM
Article Commentary
Replies
4
Views
110
Article Commentary
Yesterday at 11:40 AM
Unclear Engineer
U
Stunning image shows atoms transforming into quantum waves — just as Schrödinger predicted
Admin
Monday at 8:05 AM
Article Commentary
Replies
5
Views
308
Article Commentary
Tuesday at 10:12 AM
danR
Check - the BB is 23.25 billion light-years away spatially
Gibsense
May 5, 2024
Cosmology
Replies
2
Views
689
Cosmology
May 6, 2024
Gibsense
NASA's Mars sample return mission is in trouble. Could a single SLS megarocket be the answer?
Admin
Friday at 6:05 AM
Article Commentary
Replies
5
Views
110
Article Commentary
Yesterday at 8:57 AM
Torbjorn Larsson
T
Armed Astronauts?
Burbank Rob
Apr 25, 2024
Our Solar System
Replies
6
Views
1K
Our Solar System
May 4, 2024
Ken Fabian
K
Why is it so hard to send humans back to the moon?
Admin
Apr 21, 2024
Article Commentary
2
Replies
30
Views
1K
Article Commentary
May 7, 2024
Atlan0001
A
Question
Condensates
Harry Costas
Apr 13, 2021
Cosmology
3
4
5
6
7
Replies
161
Views
52K
Cosmology
May 5, 2024
Harry Costas
S
Locked
The James Webb Telescope is like the newer iPhone upgraded to higher resolution images by the Hub.
sooth121
Apr 29, 2024
Telescopes, Star Charts, & Planetariums
Replies
5
Views
887
Telescopes, Star Charts, & Planetariums
May 3, 2024
COLGeek
Q
Warped Number Lines & aka 'Dark Matter'
Questioner
Friday at 5:37 PM
Cosmology
Replies
1
Views
79
Cosmology
Friday at 6:11 PM
Questioner
Q
AI may be to blame for our failure to make contact with alien civilizations
Admin
Monday at 5:05 PM
Article Commentary
Replies
11
Views
242
Article Commentary
Yesterday at 11:04 PM
billslugg
There is a way to know....now!
space101
Apr 24, 2024
Cosmology
Replies
10
Views
1K
Cosmology
May 11, 2024
Gibsense
Question
Re: Innovative idea for using the Earth's magnetic field to propel spacecraft
saraerdmann
Monday at 6:46 PM
Space Travel & SpaceX
Replies
1
Views
237
Space Travel & SpaceX
Wednesday at 3:29 AM
George²
NASA's Voyager 1 spacecraft finally phones home after 5 months of no contact
Admin
Apr 22, 2024
Article Commentary
Replies
13
Views
1K
Article Commentary
Apr 28, 2024
billslugg
FAA to conduct new environmental review for SpaceX's Starship operations in Florida
Admin
May 10, 2024
Article Commentary
Replies
9
Views
346
Article Commentary
May 10, 2024
Unclear Engineer
U
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