The only known contents of Sputnik 1 are Electronics and some batteries.
No one was onboard Sputnik, it was an unmanned satellite.
Sputnik 1 didn't have any cany camera or crew onboard, so it didn't see a thing.
Sputnik I was simplicity itself - it's only onboard "equipment" was an electronic radio "beep" received back on earth.
None directly as it had no instruments onboard to gather information. The only equipment built into Sputnik was a simple radio transmitter that sent out a regular periodic beep signal. Some information was gathered indirectly on the ground by tracking Sputnik on RADAR.
It means it was the first sputnik.
Sputnik 1 was a Russian satellite.
Sputnik was the "family name" for a series of satellites, so there never was a satellite named only Sputnik. They all had numbers with Sputnik 1 being the first.
Because the Sputnik program ended with Sputnik 3. Albeit there was a Sputnik 40 and 41 but these were to commemorate the 40th anniversary of Sputnik 1.
Sputnik 1 Sputnik 1
the name of the first satellite is Sputnik
Sputnik 1 and Sputnik 2 were artificial satellites that traveled around the Earth. People thought that Sputnik 1 was spying on them, but all it did was transmit a simple tracking signal for 3 weeks.
Only things the sputnik 1 is known to have contained are Electronics and batteries.