Stamp: Landing of Venera-4 on Venus (Soviet Union, USSR 1968)
Landing of Venera-4 on Venus (Soviet Union, USSR 1968)
12 April (Soviet Union, USSR ) within release Cosmonautics Day goes into circulation Stamp Landing of Venera-4 on Venus face value 10 Russian kopek
| Stamp Landing of Venera-4 on Venus in catalogues | |
|---|---|
| Michel: | Mi: SU 3482 |
| Stamp Number: | Sn: SU 3458 |
Stamp is square format.
Also in the issue Cosmonautics Day:
- Se-tenant - Cosmonautics Day face value 20;
- Stamp - First Spacewalk - Cosmonaut Alexey Leonov (1965-03-18) face value 4;
- Stamp - Landing of Venera-4 on Venus face value 10;
- Stamp - Docking of Kosmos-186 & Kosmos-188 face value 6;
Stamp Landing of Venera-4 on Venus it reflects the thematic directions:
Outer space (or simply space) is the expanse that exists beyond Earth's atmosphere and between celestial bodies. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium plasma, permeated by electromagnetic radiation, cosmic rays, neutrinos, magnetic fields and dust. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins (−270 °C; −455 °F)
A satellite or artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation (GPS), broadcasting, scientific research, and Earth observation. Additional military uses are reconnaissance, early warning, signals intelligence and, potentially, weapon delivery. Other satellites include the final rocket stages that place satellites in orbit and formerly useful satellites that later become defunct.
A spacecraft is a vehicle that is designed to fly and operate in outer space. Spacecraft are used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo. All spacecraft except single-stage-to-orbit vehicles cannot get into space on their own, and require a launch vehicle (carrier rocket).
