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Where are the Kuipers? Has anyone seen one yet?
https://space.stackexchange.com/questions/68308/where-are-the-kuipers-has-anyone-seen-one-yet
Published: May 4, 2025 10:52
CNN's April 28, 2025 Amazon launches Project Kuiper satellites designed to compete with Elon Musk’s SpaceX says: Twenty-seven satellite took flight atop an Atlas V rocket, built by United Launch Alliance, just after 7 p.m. ET Monday from Cape Canaveral…
Is there one critical size to impact Earth at terminal velocity from low Earth orbit?
Published: May 3, 2025 22:39
Assuming many spherical solids of varying diameter in circular very low Earth orbit (doomed to deorbit soon), all made out of similar homogeneous material that withstands atmospheric entry heating, hypothetical density 1g/cm3. Only varying parameter…
Sea level impact velocity of objects deorbited from low Earth orbit
Published: May 3, 2025 21:12
Reading Kosmos 482 Descent Craft reentry forecasts on this blog, it's said that impact velocity (most likely at sea level) will be somewhere around 65-70m/s or (~242km/h) Roughly same impact velocity is predicted here and there It's assumed the falling…
Why hasn't Kosmos 482's orbit circularized? (currently 347 x 158 km) Will it, before reentry?
Published: May 2, 2025 00:09
Currently (TLE epoch is 3 hours old), n2yo.com shows the 500 kg Kosmos 482 Venus Descent Craft (1972-023E, 6073) in a very low 347 x 158 km Earth orbit. How that came to be is covered in What are the questions and issues related to Kosmos 482's…
what are some methods of side booster separation?
https://space.stackexchange.com/questions/67420/what-are-some-methods-of-side-booster-separation
Published: May 2, 2025 00:04
Through some research, I got to know about the booster separation motors (BSMs) used on the space shuttle in order to separate the solid rocket boosters (SRBs). However I did not understand if this is similar to Hot staging on a rocket or does the…
Did the Apollo program deliberately hire younger and less-experienced engineers and staff?
Published: May 1, 2025 23:46
I remember having read some time ago that for the Apollo program (and probably the related Mercury/Gemini ones), NASA deliberately hired younger and less-experienced engineers and staff. The supposed reason was that these people are still dreamy and naive…
Apollo Inertial Measurement Unit Platform Gyro Stabilization Feedback Signals
Published: May 1, 2025 16:48
When the spacecraft is maneuvered, orthogonally-mounted gyros on the IMU Platform detect this motion. The gyros emit electrical signals proportional to the detected angular rates. These signals power gimbal-mounted electric motors to drive the platform to…
GMAT - Simulating realtime ground track
https://space.stackexchange.com/questions/68254/gmat-simulating-realtime-ground-track
Published: May 1, 2025 13:39
I'm having trouble finding a way to plot a ground track animation for a LEO satellite in real-time. The animation plays >10x realtime. Is GMAT capable?
Are astronauts' vital signs monitored aboard the ISS?
https://space.stackexchange.com/questions/68298/are-astronauts-vital-signs-monitored-aboard-the-iss
Published: May 1, 2025 03:31
I know their vital signs are monitored during launch and reentry and during spacewalks but what about outside of those do they monitor their vital signs then?
How much deeply buried water could realistically exist undiscovered in our solar system?
Published: April 30, 2025 18:01
Although I do not know how widely accepted these findings are, I have recently read several articles which claim that researchers have found evidence to support the existence of an ocean's worth of water underground on Mars. I have also heard it claimed…
What kinds of activities and research are seen as the most important to get done on the ISS in the next several years?
Published: April 30, 2025 01:25
There are both concerns about maintaining a crewed ISS to 2030, (NASA safety panel warns of increasing risks to ISS operations) and optimism that it could be used beyond 2030 (Veteran NASA astronaut says ISS can operate past 2030) That would be Don Pettit,…
Have there ever been any in-depth designs for a crewed exploratory mission to Mercury?
Published: April 29, 2025 07:02
I have seen some sources talking about the idea of a colony on Mercury, with the justification being that it would be similar to Earth's Moon, but with more solar power to use and higher gravity to keep colonists healthy. This question, though, is not…
Would an elongated rocket launch tube NOW be feasible and economical?
Published: April 29, 2025 04:50
The general idea is to make rocket launches far more economical than they currently are... maybe even within eventual affordable range for the general populace! The goal of a tube is to significantly reduce the energy needed for the rocket to deliver its…
Why is the breathing atmosphere of the ISS a standard atmosphere (at 1 atm containing nitrogen)?
Published: April 28, 2025 15:43
The Wikipedia page for the International Space Station says that it has a fairly Earth-like, sea-level atmosphere: 21% oxygen, balance nitrogen at 101.3 kPa. Supposedly it's because a pure-oxygen environment is dangerous as in the Apollo 1 disaster, but in…
Wasn't the moon landing + reentry much harder to do than SpaceX's reusable rockets/boosters?
Published: April 28, 2025 14:03
Over 45 years ago, we know that USA/Russia were able to send satellites/humans and return them to the Earth. Isn't that supposed to be much more difficult to do than what SpaceX is doing now by returning (landing) the rockets/boosters on the Earth (not…
Using asteroids as piggyback rides for scientific stations
Published: April 28, 2025 12:23
Would it be possible to land and anchor scientific station on (or inside for additional protection) a larger asteroid that have elliptical orbit around the Sun? The purpose of an asteroid would be free ride and protection from space objects and radiation.…
Can anyone share or provide a source for these 1970s Project Apollo documents
Published: April 28, 2025 05:46
doc title: Manually-aided on-board Apollo cislunar navigation Document ID: 19710029813 Publisher: INST. OF NAVIGATION, pub date: January 1, 1970 NTRS Distribution Limits Public Link to NTRS "Distribution Limits Public" doc title: Onboard cislunar…
Can anyone share or provide a source for this 1970 Project Apollo document
Published: April 28, 2025 04:12
doc title: Manually-aided on-board Apollo cislunar navigation Document ID: 19710029813 Publisher: INST. OF NAVIGATION, pub date: January 1, 1970
Black Holes as Topological Defects in the Universal Expansion
Published: April 27, 2025 23:17
Hello I'm a new here and have 1 question about a space, would like to hear other opinions. From what I know about space and its fascinating aspects, I am very eager to learn and discover something new, so here’s my question. Quantum positions and quantum…