This plaque, carried by Pioneer 10 and Pioneer 11 space probes, describes the location of the Sun. What are the points at the ends of the lines?

planets of the Solar System
galaxies
quasars
pulsars
Each of the line includes binary encoding of pulsar frequency, so these can be easily recognized. The hydrogen spin-flip transition frequency is used as the unit of time (Hydrogen particle at the top of the image).
Sophie Letherman
0
Correct this question
0
Very interesting!
reach: rather globalastronauticsastronomyPioneerspace probestechnology

Answers by country

planets of the Solar System
galaxies
quasars
pulsars
answers
flagBelarus
21%
7%
28%
42%
14
flagCanada
40%
6%
13%
40%
30
flagGreece
23%
17%
23%
35%
17
flagPoland
32%
16%
15%
33%
8301
flagthe United Kingdom
34%
13%
17%
32%
123
flagFrance
35%
11%
17%
29%
17
flagAustria
21%
28%
21%
28%
14
flagthe United States
35%
18%
17%
26%
269
flagUkraine
45%
13%
13%
26%
91
flagAustralia
26%
10%
34%
26%
38
flagPakistan
40%
16%
10%
26%
30
flagRussia
34%
20%
19%
23%
72
flagUnknown
31%
15%
31%
21%
32
flagthe Netherlands
31%
26%
21%
21%
19
flagIndia
36%
18%
23%
19%
373
flagGermany
55%
19%
16%
8%
36
flagthe Philippines
62%
8%
20%
5%
35
flagNew Zealand
50%
10%
40%
0%
10