Earth orbit

Explore the intriguing journey of Earth as it orbits around the sun. Discover the wonders and mysteries of our planet's orbit and how it affects our daily lives.
Sputnik 1 ("Satellite-1"), was the first artificial Earth satellite. The Soviet Union launched it into an elliptical low Earth orbit on 4 October 1957. It was a 58 cm (23 in) diameter polished metal sphere, with four external radio antennae to broadcast radio pulses. It was visible all around the Earth and its radio pulses were detectable. This surprise success precipitated the American Sputnik crisis and triggered the Space Race, a part of the larger Cold War. Art, Astronomy, Galaxies, Deep Space, Satellites, Earth Orbit, Space Probe, Spheres, Radio Antenna

Sputnik 1 ("Satellite-1"), was the first artificial Earth satellite. The Soviet Union launched it into an elliptical low Earth orbit on 4 October 1957. It was a 58 cm (23 in) diameter polished metal sphere, with four external radio antennae to broadcast radio pulses. It was visible all around the Earth and its radio pulses were detectable. This surprise success precipitated the American Sputnik crisis and triggered the Space Race, a part of the larger Cold War.

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Miss Eveleigh
Ptolemy’s universe – the model accepted by Omar Khayyam. Astronomy, Astrology, Our Solar System, Planetary, Jupiter Moons, Orbit, Mercury, Jupiter, Moon Stone

Lived 1048 - 1131. In the year 1072 AD, Omar Khayyam documented the most accurate year length ever calculated - a figure still accurate enough for most purposes in the modern world. Khayyam was an astronomer, astrologer, physician, philosopher, and mathematician: he made outstanding contributions in algebra. His poetry is better known in the West

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Marko Mijailovic