Skip to main content

Questions tagged [spaceflight-firsts]

First or earliest instances of a notable event, implementation, or technological achievement related to spaceflight. Use the record tag instead for questions of the class fastest, smallest etc. as these records can be set and broken while firsts never change (in principle)

11 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3 votes
0 answers
58 views

Radio coherent transponders are the foundation of deep space navigation, have optical analogues been used? If so, the furthest distance measured?

Coherent radio transponders receive a signal from Earth containing specially encoded modulation, amplify it and retransmit it back to Earth. Correlating the received signal with the transmitted signal ...
uhoh's user avatar
  • 149k
3 votes
0 answers
192 views

Are there examples of spaceflight equipment being redesigned to remove right hand bias? (To make it less difficult to use left-handed)

Writing First left-handed primate on the Moon? First in space? got me thinking. The first left-handed astronaut may "break a barrier" but not all barrier-breakings result in an improvement ...
uhoh's user avatar
  • 149k
3 votes
0 answers
353 views

Have there been any Foucault pendulum demonstrations beyond Earth?

A Foucault pendulum is a pendulum allowed to oscillate in 2 directions, unlike the pendulum in a clock which is restricted to 1 dimensional oscillation. On Earth, (except at the equator) the plane of ...
uhoh's user avatar
  • 149k
2 votes
0 answers
127 views

How unusual is it to test vacuum engines at sea level?

How are vacuum optimized engines tested without disintegrating them? is an excellent question as it's attracted quite a number of informative and diverse answers. @Uwe's answer informs us that there ...
uhoh's user avatar
  • 149k
2 votes
0 answers
96 views

What was the first "all-civilian" animal spaceflight?

As long as SpaceX is (inaccurately) claiming the "first all-civilian spaceflight", what was the first spaceflight with animals that were all "civilians"? That is, they had never ...
DrSheldon's user avatar
  • 48k
2 votes
0 answers
266 views

First instance of a frangible nut in space? Which space-nut was first successfully "franged"?

Wikipedia's Frangible nut begins: Not to be confused with Explosive bolt. The frangible nut is a component used in many industries, but most commonly by NASA[citation needed], to sever mechanical ...
uhoh's user avatar
  • 149k
2 votes
0 answers
134 views

When were "2nd stage pushers" first used?

The question Falcon 9 2nd stage pusher; how far does it continue to extend as it accelerates separation? includes (and further explains) the GIF below. Question: What was the first use of a "2nd ...
uhoh's user avatar
  • 149k
1 vote
0 answers
94 views

What exactly is Part 450 and how will it "streamline the regulatory process for companies requesting both launch and spacecraft reentry licenses"?

CNBC's Astra shares drop 14% after rocket launch attempt aborted and postponed says: Notably, for this launch Astra received the first Federal Aviation Administration license under Part 450 – a new ...
uhoh's user avatar
  • 149k
1 vote
0 answers
95 views

Has an aircraft's flight ever been delayed on another planet? If so, who, what, when, where and why exactly?

For the benefit of future readers and our spaceflight-firsts tag: Question: Has an aircraft's flight ever been delayed on another planet? If so, who issued the delay order, what spacecraft's flight ...
uhoh's user avatar
  • 149k
1 vote
0 answers
80 views

What was the first "bent pipe" or otherwise coherent transponder in deep space?

In this answer to On what basis is the information about the distance and velocity of the Voyager probes determined? in Astronomy SE I mentioned the term "bent pipe" transponder and also ...
uhoh's user avatar
  • 149k
1 vote
0 answers
123 views

What is the first time that two satellites were launched together as the same payload?

Below I've assembled some research into the question of which launch is actually the first to carry two satellites into orbit, but so far I think the results are inconclusive. So despite there being ...
Joe Jobs's user avatar
  • 2,650