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  1. en.wikipedia.org › wiki › Sputnik_1Sputnik 1 - Wikipedia

    Sputnik 1 (/ ˈ s p ʌ t n ɪ k, ˈ s p ʊ t n ɪ k /, Russian: Спутник-1, Satellite 1) was the first artificial Earth satellite.It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program.It sent a radio signal back to Earth for three weeks before its three silver-zinc batteries became depleted.

  2. www.nasa.gov › history › sputnikSputnik - NASA

    Sputnik and The Dawn of the Space Age History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a beach ball (58 cm.or 22.8 inches in diameter), weighed only 83.6 kg. or 183.9 pounds, and took about 98 minutes to orbit the Earth on its elliptical path. That launch ushered in new political, military, technological, and scientific developments.

  3. Jun 18, 2024 · Sputnik, any of a series of three artificial Earth satellites, the first of whose launch by the Soviet Union on October 4, 1957, inaugurated the space age. Sputnik 1, the first artificial satellite launched, was a 83.6-kg (184-pound) capsule. It achieved an Earth orbit with an apogee (farthest point from Earth) of 940 km (584 miles) and a perigee (nearest point) of 230 km (143 miles), circling Earth every 96 minutes and remaining in orbit until January 4, 1958, when it fell back and burned ...

  4. www.nasa.gov › image-article › sputnik-1Sputnik 1 - NASA

    Oct 4, 2011 · On Oct. 4, 1957, Sputnik 1 successfully launched and entered Earth's orbit. Thus, began the space age. The successful launch shocked the world, giving the former Soviet Union the distinction of putting the first human-made object into space. The word 'Sputnik' originally meant 'fellow traveler,' but has become synonymous with 'satellite.'

  5. Sputnik 1, launched on 4 October 1957 from the Soviet Union's rocket testing facility in the desert near Tyuratam in the Kazakh Republic, proved a decidedly unspectacular satellite that probably should not have elicited the horrific reaction it wrought. An aluminum 22-inch sphere with four spring-loaded whip antennae trailing, it weighed only 183 pounds and traveled an elliptical orbit that took it around the Earth every 96 minutes. ...

  6. Sputnik and the Dawn of the Space Age . History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a beach ball (58 cm.or 22.8 inches in diameter), weighed only 83.6 kg. or 183.9 pounds, and took about 98 minutes to orbit Earth on its elliptical path. That launch ushered in new political, military, technological, and scientific developments.

  7. Sputnik 1, launched on 4 October 1957 from the Soviet Union's rocket testing facility in the desert near Tyuratam in the Kazakh Republic, proved a decidedly unspectacular satellite that probably should not have elicited the horrific reaction it wrought. An aluminum 22-inch sphere with four spring-loaded whip antennae trailing, it weighed only 183 pounds and traveled an elliptical orbit that took it around the Earth every 96 minutes. ...

  8. 4 days ago · The Sputnik 1 satellite was a 58.0 cm-diameter aluminum sphere that carried four whip-like antennas that were 2.4-2.9 m long. The antennas looked like long "whiskers" pointing to one side. The spacecraft obtained data pertaining to the density of the upper layers of the atmosphere and the propagation of radio signals in the ionosphere. The instruments and electric power sources were housed in a sealed capsule and included transmitters operated at 20.005 and 40.002 MHz (about 15 and 7.5 m in ...

  9. Oct 3, 2017 · The launch of Sputnik-1, as it was officially called, signalled the start of the ‘Space Age’, and fuelled the space race between the Soviet Union and the United States that was to result in more than a decade of unprecedented achievement. Initial reactions to Sputnik were guarded – the ability to launch an artificial satellite could also indicate the development of new weapons.

  10. Sep 29, 2020 · Sputnik – sometimes called Sputnik 1 – went into space on Oct. 4, 1957. The achievement sent a shockwave through the American public, who had felt a sense of technological superiority amid a ...