Sputnik 1
Sputnik 1 was the first artificial Earth satellite launched by the Soviet Union on October 4, 1957. It was a 58 cm diameter polished metal sphere, with four external radio antennas to broadcast radio pulses. The satellite completed an orbit of the Earth every 96.2 minutes, transmitting radio signals back to Earth that could be monitored by amateur radio operators. The launch of Sputnik 1 marked the beginning of the Space Age and the opening of a new era of exploration and discovery beyond our planet.
Your Previous Searches
Random Picks
- Spacecraft Emergency: Spacecraft Emergency refers to any unexpected situation that occurs during a space mission that poses a threat to the safety of the crew or the success of the mission. These emergencies can be caused by a variety of factors such as equipmen ... Read More >>
- Algorithmic Redundancy: Algorithmic redundancy refers to the use of multiple algorithms or redundant components in a spacecraft or satellite system to increase reliability and reduce the risk of failure. This redundancy can be achieved through hardware redundancy, ... Read More >>
- Neurostimulator: A neurostimulator is an electronic device that delivers electrical impulses to specific areas of the brain or nervous system to modulate neural activity. In the context of space and astronautical engineering, neurostimulators have been used ... Read More >>
Top News
Check out this interactive map of the early universe, considered largest ever cr...
A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now....
News Source: USA Today on 2025-06-12
The Vera C. Rubin Observatory is about to totally transform astronomy...
With the ability to scan the entire southern night sky every three days, the huge Vera C. Rubin Observatory could be about to start solving the mysteries of the universe, from dark matter to Planet Ni...
News Source: New Scientist on 2025-06-12
Trump's proposed science cuts will have huge consequences...
The universe will still be there to marvel at, despite brutal cuts set to hit NASA and the National Science Foundation's budgets. But the damage to future research will be long-lasting, says Chanda Pr...
News Source: New Scientist on 2025-06-11
Starlink satellites are leaking radio signals that may ruin astronomy...
Our ability to study faint radio signals from when the first stars began to form is being threatened by SpaceX's Starlink satellites, which seem to be unintentionally leaking radio signals that overpo...
News Source: New Scientist on 2025-06-09
Asteroids around Venus pose possible 'invisible threat' to Earth: Should you be ...
A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, astronomers have warned....
News Source: USA Today on 2025-06-06