Questions tagged [record]

Questions regarding extremes or records, such as the smallest, largest, first, last, heaviest, etc. of a thing or event.

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16
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4answers
4k views

What artificial satellite has the farthest orbit around the Earth?

What is the furthest Earth orbiting satellite? What is its speed and purpose?
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1answer
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What is the current record for the farthest detection of a “dead” spacecraft?

In order to better defend my position that trying to track Juno from Earth once it can no longer transmit would be Quixotic, I'd like to ask what the current record is for the farthest detection from ...
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2answers
594 views

When was the last normal electron tube (valve) for electrical circuitry launched into space?

The answer to my question The first transistors in space: Germanium or Silicon? What about LEO? actually addressed both the first Germanium and Silicon transistor. So now I've gotta ask about ...
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2answers
696 views

Is this the longest that a spacecraft “went to sleep” and then woke up on schedule?

For various reasons, spacecraft are sometimes "put to sleep" for periods of time on long voyages. Many systems are shut down, and radio communications suspended. Tracking of spacecraft at very large ...
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1answer
736 views

Puzzler: Precisely what maximum distance from the Earth did the Apollo 13 astronauts achieve?

tl;dr: Both this answer and this answer quote Wikipedia to state that the Apollo 13 astronauts reached 404,171 km from Earth. I'm not able to reproduce that value. According to JPL's Horizons the ...
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1answer
579 views

Which astronaut has experienced the largest relativistic shift in time (relative to Earth's surface)?

Following this answer and then this question (where I've linked to Cosmonaut Sergei Krikalev; the World's Most Prolific Time Traveller) I've noticed that currently Krikalev does not hold the precisely ...
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1answer
819 views

The first transistors in space: Germanium or Silicon? What about in orbit?

Certain people (me) will have hours of fun in the Transistor Museum website. Who can resist stuff like this: Historic Germanium Transistors; General Transistor/General Instrument (5MB pdf)? I found ...
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7answers
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Has humanity launched a SSTO … ever?

If you've been reading the news lately, you've probably been reading about Skylon and it being Single Stage To Orbit (SSTO). I've had a think back and to the best of my knowledge humanity has always ...
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What is the highest non-equatorial earth orbit used?

When looking at the operational altitude of satellites, it seems that the highest one is GEO (36000km), which is an equatorial orbit. Non-equatorial orbits are less high (from LEO to 20000km for GPS). ...
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5answers
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Highest DC voltage ever intentionally produced in space?

Comments on the page Maximum grid voltage of ion thruster got me wondering; what is the highest DC voltage ever intentionally produced by a spacecraft in space? Photomultiplier tubes and micro-channel ...
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6answers
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What is the smallest operational artificial satellite?

Miniaturisation has many advantages, and in recent times, nanosatellites, picosatellites, and femosatellite concepts have emerged. The Wikipedia article on miniaturised satellite has some pointers. ...
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657 views

What's the record for the fastest trip to the Moon?

The line "Therefore the USSR sent detailed instructions to Jodrell Bank how to find their second lunar probe, Luna 2, that was launched on 12 September 1959 and hit the moon the next day." from ...
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1answer
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Who has been the closest to/furthest from the Sun?

Google couldn't find the answer for me. Technically this is two very closely related questions. Since no person has yet been much further from the Earth than the far side of the Moon I was wondering ...
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1answer
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Which astronaut travelled farthest from Earth?

To-date who has flown farthest from the center of the Earth? Is he alive now?
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Was Alexander Gerst the first man to have bare skin exposed to the vacuum of space and live?

On August 30, 2018, a hole was found in the Soyuz Orbital Module on the ISS. Astronaut Alexander Gerst initially plugged it with his thumb, meaning a part of his bare skin touched space. I can't find ...
4
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1answer
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What's the largest rocket that was carried to space inside a Space Shuttle?

Why did the Ulysses probe reach Jupiter much faster than Galileo? got me wondering about the largest rocket that was carried to space inside a Space Shuttle. Largest in terms of some performance ...
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2answers
186 views

What was the first use of analog to digital conversion in a satellite?

This answer to Do the Voyager probes transmit analogue or digital data? states that the Voyagers sent only digital data. This is no doubt mostly because analog data was digitized and store digitally ...
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4answers
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What's the largest single object payload ever lifted into space?

I am aware that the Saturn V is the largest rocket ever built and was capable of lifting more weight into space than anything that exists today. Modern rockets often carry several satellites up at ...
3
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1answer
210 views

What's the longest time that an astronaut remained in free fall?

After watching the video below (found here and here) I am reminded of the series of possibly less than 100% serious questions here about being weightless in the middle of a large volume and ...
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1answer
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What is the farthest that a “human satellite” has been from their spacecraft?

There are several news items about the recent passing of astronaut Bruce McCandless II, and they generally refer to his work developing, and then using the Manned Maneuvering Unit (MMU). BBC: Bruce ...
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1answer
358 views

How far from earth have atomic clocks (or ultra-stable oscillators) been placed and monitored?

The various flavors of GPS satellite constellations use atomic clocks on each satellite. As far as I know, all of the constellations are "shells" of circular MEO orbits in 3 to 6 planes, 20,000 to 25,...
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4answers
2k views

What is the fastest can we or have ever traveled in space?

What is the fastest vehicle currently in space? At what speed with our technology currently does physics restrict our speed limits in space?
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1answer
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When did an astronaut in space first see someone on a TV screen?

The Apollo missions had video cameras and transmitted live images to Earth. But what about the other direction -- astronauts seeing live images of people on Earth? Question: When did an astronaut in ...
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1answer
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What is the highest number of humans in space at the same time and what vessels were they on when it happened?

What is the highest number of human beings in space at the same time, and what vessels were they on when it happened?
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9answers
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Highest number of satellites launched on a single rocket

What is the highest number of satellites that have been launched on a single rocket? What were the number of stages used in that launch? (It may be from the past or a future mission)
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3answers
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What were the biggest and heaviest spacecrafts to safely return from orbit?

How big a thing was able to land or splash down? Was there ever anything bigger or heavier than the Space Shuttle? If no then whats next on the list? And secondary question: what is the maximal ...
9
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1answer
377 views

What's the record for the longest time a deep space craft has functioned without a reboot?

The question How is Voyager 1 still operating? and the interesting comparison to the record times that Earthbound servers have run without reboot got me thinking about deep space spacecraft. I'm ...
7
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1answer
480 views

What is the highest velocity a spacecraft has left Earth?

The comment below @TomSpilker's answer I'd love to see anything in LEO that can impart 20.89km/s of delta V to anything. got me wondering what the highest velocity a spacecraft has left the Earth,...
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1answer
340 views

What is the largest proper cubesat?

The sizes of Cubesats are measured in "U" units of volume. Each U is nominally a cube of something like 10 to 12 cm on a side, depending on the specific deploying mechanism it's approved for....
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1answer
262 views

What spacecraft has had the greatest total propulsive delta-v?

How fast is fuel escaping a rocket for it to reach the escape velocity 11 km/s? was an active and well-received discussion! It's always exciting when we first realize that a rocket can go much faster ...
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1answer
468 views

What's the largest optical telescope mirror ever put in space?

As a follow-on question to What's the largest optical lens put in space? I'd like to ask about mirrors this time. Question: What's the largest optical telescope mirror ever put in space? Optical ...
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1answer
197 views

What's the largest optical lens put in space?

While star cameras and wide angle cameras in space are built from glass lenses, large aperture optical systems generally use reflective optics. For some large ones see answers to What's the largest ...
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3answers
699 views

What is the largest delta-v ever produced in space from mechanically stored energy?

The math behind this answer suggests that while the delta-v delivered from hand-throwing an object from the ISS would not produce prompt de-orbit and atmospheric reentry, it would still lower the ...
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1answer
175 views

Did Zuma complete at least one orbit? [duplicate]

Question: Did Zuma complete at least one orbit? CLOSE VOTERS, PLEASE NOTE: answers to What was the outcome of the launch of ZUMA by SpaceX, to the best of the public's knowledge? do not answer my ...
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3answers
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What is the closest distance a human being has come to Mars ever since the beginning of the space age?

Ever since we started space exploration, what is the closest a living human being has come to Mars?
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1answer
4k views

Which object has been to space the most times?

Which particular piece of hardware has crossed the Karman line most often? By hardware I mean anything other than organisms.
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1answer
293 views

Is this a first Mars aerobraking for ESA, or for anyone?

In the ESA video ExoMars at the Red Planet after about 02:10, it says: With ExoMars, ESA is going to use for the first time, a method called aerobraking for a spacecraft in orbit around Mars... ...
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2answers
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How long will it take Elon Musk's roadster to become the fastest ever car?

In chat, site moderator PearsonArtPhoto raised an interesting question after I'd pointed out that watching this launch could be disguised as watching "A car go faster than any car has gone before." ...
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3answers
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What is the fastest rover that has ever traveled on the surface of an extra-terrestrial body?

What is the fastest rover currently moving on the surface of another celestial body? At what speed with our technology currently does physics restrict our speed limits on the surfaces of solar system ...
7
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1answer
257 views

Most orbital launches in one day

There were 3 orbital launches on March 29 2018: Soyuz 2-1v GSLV Mk.2 Long March 3B Is it a record tie for most orbital launches on the same day (as expressed in local time)? If so, when it was set?...
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4answers
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First LED left on another planet⁺ by humans?

Light Emitting Diodes or LEDs are ubiquitous now, but I still remember riding my bike to Radio Shack and buying my first LED, checking the diagram on the back of the package, and getting a battery and ...
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1answer
242 views

Who was the first person in space to “be on TV”?

The Apollo missions had video cameras and transmitted live images to Earth, but I am not sure if there were any video transmission prior to the Apollo 11. Question: Who was the first person in space ...
3
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1answer
87 views

What's the highest heliocentric inclination achieved by a deep space probe, without using the outer planets?

Wikipedia and this answer explain that it will take several flyby's of Venus for ESA's Solar Orbiter to reach 34° of inclination. Question: Currently, what's the highest heliocentric inclination ...
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0answers
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What is the largest energy stored in a spring or other stress-based energy storage device ever put in space?

The question What is the largest delta-v ever produced in space from mechanically stored energy? asks of course about the delta-v produced, but here I'm asking about the largest amount of stored ...
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0answers
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NanoSat/Small Satellite World Record

I have been trying to understand, small sat within 10-30 kg satellite what has been the longest operating satellite? Generally life of such missions is 6 months. Other heavy duty class satellite have, ...
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0answers
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When was the first successful photograph of an orbital spacecraft from Earth taken?

Early artificial satellites were tracked by radio and visually by amateurs, scientists and military personnel for various reasons including fun and improving the understanding of orbital dynamics ...
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1answer
124 views

What Earth satellite remained in orbit the longest before reentering?

@BillGray's excellent answer in September 2018 mentions that the Soviet magnetospheric research satellite 1977-093A (NORAD 10370) was expected to reenter the atmosphere in 2019 due to effects ...
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0answers
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Why was ISEE-3 “the most cost-effective spacecraft we ever had” in 2014?

NPR's 2014 news article and audio podcast: Space Thief Or Hero? One Man's Quest To Reawaken An Old Friend quotes Robert Farquhar (NASA, Wikipedia) when discussing the ISEE-3 mission before the ISEE-3 ...