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Donations to our hoster fosshost.org

Last post by onetwothree « 17.06.2021, 13:39
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Attachment(s) by onetwothree » 26.05.2021, 20:43 » in Announcements

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17.06.2021, 13:39
Celestia 1.6.2 is out

Last post by selden « 08.11.2021, 20:35
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Replies: 61
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Attachment(s) by onetwothree » 23.11.2020, 08:00 » in Announcements
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Last post by selden View the latest post
08.11.2021, 20:35
Celestia 1.7.0 Development Thread

Last post by Art Blos « 03.12.2021, 19:33
Posted in Development
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Attachment(s) by onetwothree » 02.11.2018, 20:19 » in Development
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Topics

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Physics and Astronomy Forum

Last post by Markk786 « 28.07.2017, 01:51
Replies: 4
by chris » 27.06.2003, 02:16

4 Replies

18541 Views

Last post by Markk786 View the latest post
28.07.2017, 01:51
Exoplanet Misconceptions

Last post by Eric Nelson « 19.06.2021, 02:12
Replies: 15
Attachment(s) by SevenSpheres » 08.06.2021, 18:32

15 Replies

3520 Views

Last post by Eric Nelson View the latest post
19.06.2021, 02:12
Juno Ganymede flyby

Last post by trappistplanets « 11.06.2021, 13:06
Replies: 9
Attachment(s) by trappistplanets » 06.06.2021, 14:46

9 Replies

1654 Views

Last post by trappistplanets View the latest post
11.06.2021, 13:06
Hypothetical: Specific Rogue planet. When could be its discovery date given its orbital, size, and albedo parameters?

Last post by PlutonianEmpire « 05.06.2021, 03:49
Replies: 2
by PlutonianEmpire » 04.06.2021, 14:54

2 Replies

860 Views

Last post by PlutonianEmpire View the latest post
05.06.2021, 03:49
Gaia search question.

Last post by SevenSpheres « 01.04.2021, 17:28
Replies: 3
Attachment(s) by Janus » 31.03.2021, 17:17

3 Replies

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Last post by SevenSpheres View the latest post
01.04.2021, 17:28
Geographic coordinates with JPL Horizon

Last post by Astro_Fox « 21.03.2021, 08:28

by Astro_Fox » 21.03.2021, 08:28

0 Replies

2299 Views

Last post by Astro_Fox View the latest post
21.03.2021, 08:28
Should we reply to the WOW! Signal?

Last post by fyr02 « 22.12.2020, 18:45
Replies: 2
by alfa015 » 14.11.2020, 15:05

2 Replies

2170 Views

Last post by fyr02 View the latest post
22.12.2020, 18:45
An invisible barycenter of the four gas giants entering the inner Solar System in 2029

Last post by Paradigmer « 20.12.2020, 02:58
Replies: 6
by Paradigmer » 01.12.2020, 06:40

6 Replies

2162 Views

Last post by Paradigmer View the latest post
20.12.2020, 02:58
Gaia EDR3 released

Last post by SevenSpheres « 03.12.2020, 17:37

by SevenSpheres » 03.12.2020, 17:15

0 Replies

3124 Views

Last post by SevenSpheres View the latest post
03.12.2020, 17:37
The qualitative predictions for solar cycle 25

Last post by Paradigmer « 26.11.2020, 15:02
Replies: 4
by Paradigmer » 23.10.2020, 15:16

4 Replies

1736 Views

Last post by Paradigmer View the latest post
26.11.2020, 15:02
New Small Rogue Planet found

Last post by SevenSpheres « 30.10.2020, 17:55
Replies: 1
by Duglis » 30.10.2020, 04:26

1 Replies

1372 Views

Last post by SevenSpheres View the latest post
30.10.2020, 17:55
Other exotic space objects

Last post by SVision « 06.10.2020, 19:50

by SVision » 06.10.2020, 19:50

0 Replies

3280 Views

Last post by SVision View the latest post
06.10.2020, 19:50
Phosphine detected in the atmosphere of Venus

Last post by SevenSpheres « 14.09.2020, 20:13
Replies: 2
by Daly » 14.09.2020, 18:09

2 Replies

1478 Views

Last post by SevenSpheres View the latest post
14.09.2020, 20:13
I designed a crewed interstellar spacecraft

Last post by alfa015 « 17.07.2020, 23:27
Replies: 1
by alfa015 » 04.07.2020, 11:38

1 Replies

1629 Views

Last post by alfa015 View the latest post
17.07.2020, 23:27
New NASA citizen science project to find exoplanets

Last post by spacecat « 23.06.2020, 06:58
Replies: 2
by alfa015 » 06.05.2020, 21:35

2 Replies

1761 Views

Last post by spacecat View the latest post
23.06.2020, 06:58
ISS Docking simulator by SpaceX

Last post by Janus « 13.05.2020, 14:55

by Janus » 13.05.2020, 14:55

0 Replies

3852 Views

Last post by Janus View the latest post
13.05.2020, 14:55
Do you think we should attempt contact with aliens?

Last post by bluemoon « 19.04.2020, 04:35
Replies: 1
by alfa015 » 19.04.2020, 04:08

1 Replies

1562 Views

Last post by bluemoon View the latest post
19.04.2020, 04:35
Greatest supernova

Last post by jujuapapa « 15.04.2020, 07:30

by jujuapapa » 15.04.2020, 07:30

0 Replies

3865 Views

Last post by jujuapapa View the latest post
15.04.2020, 07:30
Astronomers will be able to image Earth-like planets by 2025

Last post by Joey P. « 14.04.2020, 07:11
Replies: 1
Attachment(s) by alfa015 » 22.02.2020, 16:51

1 Replies

1566 Views

Last post by Joey P. View the latest post
14.04.2020, 07:11
If you are bored at home, this might entertain you

Last post by pirogronian « 23.03.2020, 09:28
Replies: 1
by alfa015 » 23.03.2020, 03:59

1 Replies

1500 Views

Last post by pirogronian View the latest post
23.03.2020, 09:28
Astrophotography

Last post by Anthony_B_Russo10 « 09.03.2020, 23:01
Replies: 5
Attachment(s) by LukeCEL » 08.03.2020, 23:53

5 Replies

1935 Views

Last post by Anthony_B_Russo10 View the latest post
09.03.2020, 23:01
Physicality

Last post by pittsburghjoe « 04.03.2020, 23:53

by pittsburghjoe » 04.03.2020, 23:53

0 Replies

2696 Views

Last post by pittsburghjoe View the latest post
04.03.2020, 23:53
If we looked into Observation / Measurement in QM, is this what we would find?

Last post by pittsburghjoe « 26.02.2020, 00:11

by pittsburghjoe » 26.02.2020, 00:11

0 Replies

2681 Views

Last post by pittsburghjoe View the latest post
26.02.2020, 00:11
Signature colors of planets

Last post by Joey P. « 13.02.2020, 19:08
Replies: 4
This topic has a poll. by Joey P. » 04.02.2020, 04:08

4 Replies

1778 Views

Last post by Joey P. View the latest post
13.02.2020, 19:08
Plants in Super Habitable Exoplanets Could Look Purple

Last post by alfa015 « 09.02.2020, 15:49
Replies: 1
by alfa015 » 31.12.2019, 22:18

1 Replies

1340 Views

Last post by alfa015 View the latest post
09.02.2020, 15:49
Is this an accurate color/temprature guide?

Last post by Joey P. « 06.02.2020, 06:07
Replies: 2
by Janus » 04.02.2020, 22:16

2 Replies

1369 Views

Last post by Joey P. View the latest post
06.02.2020, 06:07
What if the Mandelbrot set is connected to black holes?

Last post by pittsburghjoe « 05.02.2020, 02:04
Replies: 1
by pittsburghjoe » 04.02.2020, 01:12

1 Replies

1279 Views

Last post by pittsburghjoe View the latest post
05.02.2020, 02:04
I may have figured out Dark Matter and a Unified Theory

Last post by Joey P. « 04.02.2020, 22:04
Replies: 25
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by pittsburghjoe » 28.12.2019, 00:28
25 Replies

5939 Views

Last post by Joey P. View the latest post
04.02.2020, 22:04
Alpha centauri could host the closest Earth-like planet

Last post by Joey P. « 04.02.2020, 03:56
Replies: 2
by alfa015 » 27.12.2019, 23:38

2 Replies

1451 Views

Last post by Joey P. View the latest post
04.02.2020, 03:56
Debate over a new angle of mainstream QM

Last post by pittsburghjoe « 01.02.2020, 17:57

by pittsburghjoe » 01.02.2020, 17:57

0 Replies

2625 Views

Last post by pittsburghjoe View the latest post
01.02.2020, 17:57
Electric Universe Theory

Last post by pirogronian « 22.12.2019, 22:14
Replies: 38
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Attachment(s) by pirogronian » 16.08.2019, 05:15
38 Replies

25745 Views

Last post by pirogronian View the latest post
22.12.2019, 22:14
Spectral colors above class "O"

Last post by Joey P. « 20.11.2019, 23:22
Replies: 20
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by fsgregs » 14.03.2005, 02:16
20 Replies

8134 Views

Last post by Joey P. View the latest post
20.11.2019, 23:22
Yes, neutron stars now have a classification system

Last post by Joey P. « 20.11.2019, 23:21

by Joey P. » 20.11.2019, 23:21

0 Replies

2706 Views

Last post by Joey P. View the latest post
20.11.2019, 23:21
So, 12 planets eh?

Last post by Joey P. « 18.11.2019, 22:46
Replies: 49
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by Neethis » 16.08.2006, 11:29
49 Replies

30370 Views

Last post by Joey P. View the latest post
18.11.2019, 22:46
Saturn is the new Moon King!

Last post by Joey P. « 18.10.2019, 05:19

by Joey P. » 18.10.2019, 05:19

0 Replies

2609 Views

Last post by Joey P. View the latest post
18.10.2019, 05:19
The mechanism of the formation of floods

Last post by Joey P. « 07.10.2019, 21:20
Replies: 19
by SpaceFanatic64 » 16.06.2019, 22:53

19 Replies

6310 Views

Last post by Joey P. View the latest post
07.10.2019, 21:20
Earth as an exoplanet

Last post by Joey P. « 07.10.2019, 21:20
Replies: 1
by john71 » 29.08.2019, 09:41

1 Replies

2869 Views

Last post by Joey P. View the latest post
07.10.2019, 21:20
OMG! Planet Nine may be a black hole

Last post by Joey P. « 30.09.2019, 05:00
Replies: 2
by Joey P. » 28.09.2019, 19:41

2 Replies

1960 Views

Last post by Joey P. View the latest post
30.09.2019, 05:00
Theories on how the Solar System was formed

Last post by Joey P. « 26.09.2019, 22:06

by Joey P. » 26.09.2019, 22:06

0 Replies

2899 Views

Last post by Joey P. View the latest post
26.09.2019, 22:06
HOLY-CARAMBA!!!!! This is a large quasar group

Last post by pirogronian « 02.09.2019, 10:20
Replies: 2
by kristoffer » 11.01.2013, 20:34

2 Replies

4405 Views

Last post by pirogronian View the latest post
02.09.2019, 10:20
Black Holes: Overweight Neutron Stars?

Last post by Joey P. « 31.08.2019, 01:28
Replies: 12
by PlutonianEmpire » 04.09.2009, 00:33

12 Replies

8111 Views

Last post by Joey P. View the latest post
31.08.2019, 01:28
Alien planet's color detected

Last post by Gurren Lagann « 25.08.2019, 17:52
Replies: 3
by omega13a » 12.07.2013, 00:24

3 Replies

3818 Views

Last post by Gurren Lagann View the latest post
25.08.2019, 17:52
Definition of spectral types

Last post by SpaceFanatic64 « 25.08.2019, 05:16
Replies: 13
by ajtribick » 02.03.2006, 11:56

13 Replies

9095 Views

Last post by SpaceFanatic64 View the latest post
25.08.2019, 05:16
A moon for a poor dwarf planet

Last post by Joey P. « 25.08.2019, 03:13
Replies: 1
by FarGetaNik » 20.10.2016, 12:31

1 Replies

2785 Views

Last post by Joey P. View the latest post
25.08.2019, 03:13
Will Pluto be a planet again?

Last post by Joey P. « 25.08.2019, 02:23
Replies: 3
by The Chimp » 16.09.2018, 22:50

3 Replies

3167 Views

Last post by Joey P. View the latest post
25.08.2019, 02:23
'Death Star' Gamma-Ray Gun Pointed Straight at Earth

Last post by Joey P. « 22.08.2019, 20:49
Replies: 7
by MKruer » 06.03.2008, 01:21

7 Replies

6127 Views

Last post by Joey P. View the latest post
22.08.2019, 20:49
Stellar Collision

Last post by Joey P. « 22.08.2019, 20:48
Replies: 28
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by Tharghana » 06.01.2008, 19:01
28 Replies

16711 Views

Last post by Joey P. View the latest post
22.08.2019, 20:48
Age of stars.

Last post by pirogronian « 22.08.2019, 09:20
Replies: 3
by Janus » 12.08.2019, 15:29

3 Replies

2592 Views

Last post by pirogronian View the latest post
22.08.2019, 09:20
The Milky Way is not flat!

Last post by john71 « 02.08.2019, 14:45

by john71 » 02.08.2019, 14:45

0 Replies

4236 Views

Last post by john71 View the latest post
02.08.2019, 14:45
Luhman 16 anyone?

Last post by Joey P. « 26.07.2019, 20:33

by Joey P. » 26.07.2019, 20:33

0 Replies

3756 Views

Last post by Joey P. View the latest post
26.07.2019, 20:33

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