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Recent posts

All Along the Watchtower ER July 1, 2025 9:13 pm (CurrentEvents)

Birthright Citizenship RobVG June 29, 2025 3:34 pm (CurrentEvents)

To be blunt, NASA is now dead RL June 27, 2025 11:56 am (Space/Science)

Just for the record... ER June 22, 2025 8:59 am (CurrentEvents)

NSIDC offline? ER June 12, 2025 12:19 pm (Space/Science)

Musk trashes his own AI after it chose a liberal worldview. RobVG June 23, 2025 9:56 am (CurrentEvents)

Psyche keeps its date with an asteroid BuckGalaxy June 22, 2025 5:21 pm (Space/Science)

The Three Unknowns After the U.S. Strike on Iran BuckGalaxy June 22, 2025 12:58 am (CurrentEvents)

There are only nine meals between mankind and anarchy. BuckGalaxy June 22, 2025 12:29 am (Flame)

"Remember, what the dormouse said, ER June 5, 2025 4:14 pm (Space/Science)

Not ready for prime time BuckGalaxy June 19, 2025 12:18 pm (Space/Science)

hypocrisy ER June 15, 2025 2:30 pm (Flame)

Home » Space/Science
NASA TV(hd)

 

Globular clusters careening untethered through intergalactic space. by ER November 4, 2020 10:32 am
  • Shkadov-powered cluster brains, maybe? by Vitruvius 2020-11-04 18:26:22
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    Its been six weeks now and... by ER November 3, 2020 10:07 pm
      Yo, Johannes -- dimensional analysis example by ER November 2, 2020 7:40 pm
      • I once expressed laser intensity in horsepower/acre by RL 2020-11-02 19:51:52
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        • If he can follow and duplicate the example, and apply it to other problems... by ER 2020-11-02 20:17:34
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        Trump Lifts Protections for Alaska's Tongass National Forest . . . by DanS November 2, 2020 2:21 pm
          Hot Earth by johannes September 26, 2020 9:25 pm
          • A little bit of Column A... by Vitruvius 2020-10-02 02:47:46
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            • Thank you Vitruvius. by johannes 2020-10-08 16:13:36
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              • I'm gonna have to stop you there... by Vitruvius 2020-10-15 19:43:44
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                • One more thing by johannes 2020-10-24 21:49:10
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                  • Dimensional analysis is your friend... by RL 2020-10-25 06:43:38
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                  • We have done the numbers repeatedly for Johannes... by RL 2020-10-15 21:32:05
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                    • To RL by johannes 2020-10-24 21:55:32
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                      • Point to one place where I ever claimed you could by RL 2020-10-25 00:52:29
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                        • pointing to one place by johannes 2020-10-25 13:15:23
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                          • Two decades and you still have not managed to learn that much... by RL 2020-10-25 14:37:30
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                            • Two decades by johannes 2020-10-26 12:17:58
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                              • When you assert that energy has units of velocity squared then you are not conveying information... by RL 2020-10-26 15:22:45
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                                • And I thought that you understood mathematics.!!! by johannes 2020-10-27 18:14:05
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                                  • Dear Johannes by ER 2020-10-28 06:00:47
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                                    • Thank you ER. Teachers like you are very valuable. by johannes 2020-10-28 19:46:38
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                                      • I know very little Relativity, Special or General. by ER 2020-10-28 20:48:40
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                                        • E=mc^2 is actually only for the rest mass energy by RL 2020-10-28 22:10:47
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                                          • Quantum and Relativity were lumped in "Modern Physics" in my day. by ER 2020-10-29 06:16:17
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                                    • /0 by podrock 2020-10-27 21:52:50
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                                      • At least that would be something... by RL 2020-10-28 00:01:12
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                                      • Johannes, your 'equations' are gibberish by RL 2020-10-27 18:25:10
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                                        • If you were a bird what would you do every day? by johannes 2020-10-28 20:03:48
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                    • Not bad enough . . . by DanS 2020-10-02 10:04:46
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                      • We don't HAVE a few generations to get it right by RL 2020-10-02 11:29:47
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                        • Maybe you should just go and pull the covers over your head. by DanS 2020-10-08 08:52:24
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                          • Nope, I am not a Republican... by RL 2020-10-08 11:37:29
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                            • I didn't write the article, all I did was post it . . . by DanS 2020-10-08 15:53:50
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                    • Antarctica Could Melt 'Irreversibly' Due to Climate Change, Study Warns . . . by DanS 2020-10-01 10:53:53
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                      • Look on the bright side, Dan. by ER 2020-10-01 12:20:52
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                        • Earth is self-healing, true . . . by DanS 2020-10-02 10:22:07
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                          • It will also get bigger by podrock 2020-10-01 17:04:12
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                        • Yet again... it is a matter of scale by RL 2020-09-27 19:03:45
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                          • Again yes by johannes 2020-09-30 17:53:27
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                            • "I have my answers I’m waiting for yours." by RL 2020-09-30 18:16:18
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                              • Again yes by johannes 2020-10-01 20:54:36
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                                • *Sigh* Good-bye Johannes by RL 2020-10-01 21:09:52
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                          • Welcome back, Johannes. by ER 2020-09-27 04:59:11
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                            • Hi! ER. by johannes 2020-09-27 10:49:16
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                              • Hi! ER. by johannes 2020-09-27 10:51:27
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                                • A Pierson's Puppeteer by ER 2020-09-27 11:42:04
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                                  • Thanks for the explanation: I’m not familiar with Larry Niven’s work; sounds interesting. by johannes 2020-09-27 17:56:39
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                                    • Ringworld! by DanS 2020-10-02 10:24:28
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                                      • If you like Ringworld... by Vitruvius 2020-10-03 14:43:21
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                            Effect Predicted by Albert Einstein Spotted in a Double-Star System . . . by DanS October 28, 2020 8:55 am
                              More troubling news from the Arctic Basin by ER October 25, 2020 8:04 pm
                              • Scary yes it is. My question has been; by johannes 2020-10-26 12:49:41
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                                • Your question has been answered many times.... by RL 2020-10-26 18:12:53
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                                  • No. it is caused by greenhouse gases alone. by ER 2020-10-26 17:05:48
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                                    • To ER by johannes 2020-10-27 18:08:12
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                                  The Habitability of a Planet Depends on Many Factors . . . by DanS October 27, 2020 10:43 am
                                    The Milky Way's Quiet, Introverted Monster Won't Spin . . . by DanS October 27, 2020 10:35 am
                                      Fault Near Portland Could Unleash a Major Earthquake . . . by DanS October 24, 2020 3:43 pm
                                      • The first four minutes by podrock 2020-10-24 17:18:29
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                                        • If it is going to happen, 2020 is the year... by RL 2020-10-24 20:09:31
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                                          • Long Read by podrock 2020-10-25 09:19:29
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                                        SIBERIAN ARCTIC by johannes October 25, 2020 1:52 pm
                                          NASA grabbed a piece of asteroid by RL October 22, 2020 8:25 pm
                                          • and it grabbed a FINE piece of asteroid... by ER 2020-10-24 06:44:39
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                                            • '...and when you're a robotic probe, they let you do it. You can do anything!' by RL 2020-10-24 16:39:32
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