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What an unimaginable asshole BuckGalaxy December 15, 2025 9:26 pm (Flame)

Ancient footprints RL December 16, 2025 5:28 pm (Space/Science)

We are soooo fucked RL December 15, 2025 6:59 pm (Space/Science)

In the eye of the beast ER December 14, 2025 7:40 am (Space/Science)

Day 346 ER December 14, 2025 10:53 am (Space/Science)

Theories about 16 Psyche BuckGalaxy December 12, 2025 12:34 am (Space/Science)

My New Year's Dissolution ER December 12, 2025 7:22 pm (CurrentEvents)

Mike Lindell, MyPillow Founder, Announces Run for Minnesota Governor BuckGalaxy December 11, 2025 10:30 pm (CurrentEvents)

Trouble in Paradise BuckGalaxy December 10, 2025 8:09 pm (CurrentEvents)

La Doctrina Monroe ER December 9, 2025 9:56 am (CurrentEvents)

Mit Ro Don SDG February 24, 2015 10:30 pm (Science Fiction)

The Prisoner Survives BuckGalaxy December 9, 2025 9:16 pm (Off-Topic)

Home » Space/Science
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Weird diffraction spikes on the JWST imagery by ER February 27, 2022 8:14 pm
  • Can I post elsewhere as I know somebody will be interested ? by Pebble 2022-02-28 09:45:47
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    • No problem. by ER 2022-02-28 16:12:37
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      • Diffraction rings are useful for collimating a reflector. by RobVG 2022-02-28 21:35:59
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      • Link to this post: by podrock 2022-02-28 10:22:27
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        • The HZ Space Board is available to all for reading by podrock 2022-02-28 10:29:11
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          • Thanks by Pebble 2022-02-28 11:11:01
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      • Technical question for RL... by ER 2022-02-27 20:37:31
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        • Had to look it up... by RL 2022-03-02 10:33:37
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          • What is "R=100"? by ER 2022-03-02 20:39:16
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            • I believe it has to do with the spectrometer by RL 2022-03-08 16:19:27
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              • That seems reasonable. Thanks. by ER 2022-03-08 17:03:05
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        One bright spot in this mess. by RobVG March 5, 2022 11:35 pm
        • I don't trust these guys. by ER 2022-03-06 08:13:33
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          • Well, at least we have our own ride to the ISS. by RobVG 2022-03-06 08:58:56
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            • Just another business major by ER 2022-03-06 08:58:22
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              • I'm not sure how that supports your argument. by RobVG 2022-03-06 09:12:13
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                • I just don't like businessmen. by ER 2022-03-06 10:13:48
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                  • I get it, I really do. by RobVG 2022-03-06 11:17:28
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                    • And has now refused to block Russian media sources by Pebble 2022-03-06 11:40:08
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                      • It's a free speech issue. by RobVG 2022-03-06 12:28:20
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                        • It is an information warfare issue. by podrock 2022-03-06 13:10:59
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                          • I really wish we had cyber-warfare measures to employ... by RL 2022-03-06 16:06:24
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                            • Propaganda for profit by podrock 2022-03-06 16:45:06
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                              • By cyber-warfare I meant turning off the lights, interfering with critical infrastructure... by RL 2022-03-06 18:09:39
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                                • We might need to start a new thread on this topic. by podrock 2022-03-06 19:04:43
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            • I’m sceptical about this by Pebble 2022-03-06 00:31:24
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              Interesting re US jet in South China Sea by Pebble January 28, 2022 7:14 am
              • Recovered by podrock 2022-03-03 17:58:50
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                • Calling Glomar Explorer, come in please... by podrock 2022-01-28 09:26:15
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                  • It might just be easier to destroy it rather than try to recover it. by ER 2022-01-31 18:17:15
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                    • Self rescue by podrock 2022-02-02 14:05:08
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                      • Inflatable by RobVG 2022-03-06 10:12:01
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                        • One night n 1968... by ER 2022-02-02 17:14:51
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                      • A good time to look for manganese nodules ….. by Pebble 2022-01-28 21:54:44
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                        • I can neither confirm nor deny by podrock 2022-01-29 09:42:25
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                      Coral-like formation on Mars by RobVG February 27, 2022 9:52 am
                      • Apparently, the 'flower" is about a centimeter in size. by podrock 2022-02-28 16:36:17
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                        • Will know not to count on sand grains for scale next time. by RobVG 2022-02-28 21:31:39
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                        • Mineral precipitation by RobVG 2022-02-27 23:23:46
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                          • Here it is by RobVG 2022-02-27 09:57:04
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                            • Concretions, a link by podrock 2022-02-27 11:50:56
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                              • Seems the likely candidate. Thanks by RobVG 2022-02-27 18:02:40
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                              • Image embed by podrock 2022-02-27 11:44:40
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                                • Curious by podrock 2022-02-27 10:24:07
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                                  • Reminds me of a casting. by RobVG 2022-02-27 10:43:25
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                                    • yes by podrock 2022-02-27 11:30:33
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                                      • Can you think of any Earth anologs? by RobVG 2022-02-27 12:10:02
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                                        • I have seen some strange concretions by podrock 2022-02-27 12:48:15
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                                          • Oklahoma's state rock by RL 2022-02-28 07:52:52
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                                            • the barite rose is an excellent example by podrock 2022-02-28 12:07:02
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                                NZ launch from new pad 8pm UTC (an hour from the time of this post) by Pebble February 28, 2022 11:10 am
                                  Animals and natural disaters by podrock February 19, 2022 10:17 am
                                  • Interesting video about this by Pebble 2022-02-23 19:39:14
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                                    • When your IQ is human like by Pebble 2022-02-23 06:26:46
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                                      • Slightly related again by Pebble 2022-02-21 22:34:38
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                                        • great story, thanks by podrock 2022-02-22 05:57:07
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                                          • here's another: by podrock 2022-02-22 06:10:33
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                                            • The dawn chorus by Pebble 2022-02-22 09:24:18
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                                              • We've a parliament of neighborhood magpies by podrock 2022-02-22 21:31:49
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                                                • They used to terrorise us at work by Pebble 2022-02-23 06:25:35
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                                        • Ground contact by RobVG 2022-02-19 12:09:54
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                                          • Sub-sonics by podrock 2022-02-19 13:59:07
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                                            • On a slightly related note by Pebble 2022-02-19 16:19:42
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                                              • excellent! by podrock 2022-02-19 16:34:13
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                                                • Interesting, thanks. by Pebble 2022-02-20 05:45:57
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                                                  • Bears ate our koi by podrock 2022-02-22 21:36:52
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                                                    • Blue Heron ate ours. by RobVG 2022-02-23 18:20:01
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                                                      • We had heron issues too by podrock 2022-02-24 08:32:55
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                                          When galaxies collide by RobVG February 16, 2022 10:35 pm
                                          • Whatever the invisible dark matter really is... by ER 2022-02-17 06:26:43
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                                            • The observations. by ER 2022-02-17 06:50:18
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                                              • Under certain models for dark matter there could be some interesting dark matter laboratories very nearby... by RL 2022-02-17 17:25:46
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                                                • Great replies. by RobVG 2022-02-17 07:17:17
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                                                  • The hunt for dark matter. by RobVG 2022-02-18 19:55:15
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                                                    • Just noticed the date- Feb 2020. by RobVG 2022-02-18 20:15:07
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                                                      • 6 months ago. by RobVG 2022-02-18 20:21:09
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                                              What are those white streaks in the Parker Solar Probe imagery of Venus? by ER February 15, 2022 8:43 pm
                                              • Charged particles from the sun mostly.... by RL 2022-02-16 07:43:15
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                                                Inside the JWST alignment process by RL February 11, 2022 11:04 am
                                                • A very good video on the mirror actuator mechanism by RL 2022-02-12 12:04:29
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                                                  • Chilling image from the JWST by RL 2022-02-11 21:06:04
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                                                    Interactive sea ice extent graph by ER January 28, 2022 4:10 pm
                                                    • Arctic Sinkholes I Full Episode I NOVA I PBS by podrock 2022-02-10 10:38:49
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                                                      • Unavailable in Europe unfortunately by Pebble 2022-02-11 02:47:14
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                                                        • That's too bad. by podrock 2022-02-11 10:08:12
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                                                      Chief scientist John Mather tells us what's next for Webb by RobVG February 6, 2022 3:00 pm
                                                        Nasa Confirms The Webb Telescope Has Successfully Detected Its First Photons by RL February 5, 2022 12:24 pm
                                                        • "First Light" by ER 2022-02-05 13:06:27
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