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Wikipedia
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Explorer 1 - Wikipedia
Explorer 1 was the first satellite launched by the United States in 1958 and was part of the U.S. participation in the International Geophysical Year (IGY). The mission followed the first two satellites, both launched by the Soviet Union during the previous year, Sputnik 1 and Sputnik 2. This began a Space Race during the Cold War between the two nations. Explorer 1 was launched on 1 February 19…
NamesExplorer I · 1958 Alpha 1
Mission typeEarth science
OperatorJPL / ABMA
Harvard designation1958 Alpha 1
Background
The U.S. Earth satellite program began in 1954 as a joint U.S. Army and U.S. Navy proposal, called Project Orbiter, to put a scientific satellite into orbit during the International Geophysical Year. The proposal, u… See more
Spacecraft
Explorer 1 was designed and built by California Institute of Technology's JPL under the direction of Dr. William Hayward Pickering. It was the second satellite to carry a mission payload (Sputnik 2 was the first). … See more
Explorer 1 - NASA
Explorer-1 was the first United States earth satellite and was sent aloft as part of the Unit…
NASA
10 Things to Know About Explorer 1, America’s First Satellite
On Jan. 31, 1958, the United States sent Explorer 1, its first satellite, into space. The spacecraft was small enough to be held triumphantly overhead. It orbited Earth from as far as 1,594 miles (2,565 km) above, and made the first U.S. scientific discovery in space.
Science Mission Directorate
Wikipedia text under CC-BY-SA license

NASA
https://www.nasa.gov › history
Explorer 1 Overview - NASA
Mar 18, 2015 · Learn about the first U.S. satellite launched in 1958, which carried science instruments and discovered the Van Allen radiation belts. Explorer 1 orbited Earth for 58,000 …
- Explorer 1
Videos of Explorer I

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The Launch of Explorer 1
64.4K viewsMar 18, 2010
YouTubeNASAhistory
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Explorer 1: First U.S. Satellite
51K viewsJan 24, 2018
YouTubeNASA Jet Propulsion Laboratory
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Rolex Explorer I Two Tone Steel and Gold & New Arrivals Showcase | SwissWatchExpo
51 viewsAug 26, 2021
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Explorer 1: The First U.S. Satellite
Sep 29, 2020
SPACE.comElizabeth Howell
Short videos of explorer i
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YouTube
@SwissWatchExpo
Rolex Explorer I Two Tone Steel and Gold & New Arrivals Showcase | SwissWatchExpo
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@SwissWatchExpo
Rolex Explorer I Black Dial Stainless Steel Mens Watch 14270 Wrist Roll | SwissWatchExpo
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Rolex Explorer I 39 Stainless Steel Mens Watch 214270 | SwissWatchExpo
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Explorer 1 #onthisday
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How to Enable Internet Explorer Mode in Microsoft Edge
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NASA
https://www.nasa.gov › mission
Explorer 1 - NASA
Jul 25, 2023 · Explorer-1 was the first United States earth satellite and was sent aloft as part of the United States program for the International Geophysical Year 1957-1958.
Science Mission Directorate
https://science.nasa.gov › missions › explorer
10 Things to Know About Explorer 1, America’s First Satellite
Jan 29, 2018 · On Jan. 31, 1958, the United States sent Explorer 1, its first satellite, into space. The spacecraft was small enough to be held triumphantly overhead. It orbited Earth from as …
NASA
https://www.nasa.gov › history › sputnik › e…
Explorer Information - NASA
Explorer-I, officially known as Satellite 1958 Alpha, was the first United States earth satellite and was sent aloft as part of the United States program for the International Geophysical Year 1957-1958.
Explorer 1
https://explorer1.jpl.nasa.gov › about
Explorer 1 | Overview - NASA
Explorer 1 was the first successful U.S. satellite. It was launched Jan. 31, 1958 at 10:48 p.m. (EST) from Cape Canaveral, Florida, after two days of launch delays due to high winds. The …
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How does Exploros help engage students?
Exploros makes it simpler to transition to student-centered instruction. Students collaborate, work in small groups, complete social graphic organizers, discuss, write, draw and complete embedded assessments. And teachers gain real-time insight into student and class understanding, with which to personalize the learning experience.
Exploros | Engage Students, Map Learning Progress, Improve Outcomes
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How does Exploros help improve learning outcomes?
Exploros fulfills a longstanding promise of technology. It gives educators new insights into classroom activity to improve learning outcomes – continually measuring student engagement, progress, and assessment mapped to learning objectives. Teachers teach, all students engage and learning data is collected automatically.
Exploros | Engage Students, Map Learning Progress, Improve Outcomes
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What were the main areas of exploration for explorers?
Diogo Cão (c.1452–1486) was the first European to explore the Congo River and the west coast of Africa, south of the equator. Bartolomeu Dias (c.1450–1500) is known as the first European to sail around the southernmost tip of Africa in 1488, finding the eastern sea route to the Indian Ocean. Christopher Columbus (1451–1506).
List of explorers - Wikipedia
en.wikipedia.org
How does Exploros help teachers personalize the learning experience?
Exploros makes it simpler to transition to student-centered instruction. Students collaborate, work in small groups, complete social graphic organizers, discuss, write, draw and complete embedded assessments. And teachers gain real-time insight into student and class understanding, with which to personalize the learning experience.
Exploros | Engage Students, Map Learning Progress, Improve Outcomes
exploros.com
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Space.com
https://www.space.com
Explorer 1: The First U.S. Satellite | Space
Sep 29, 2020 · Explorer 1 was the United States' first satellite in space. The 1958 launch of the satellite — twice the size of a basketball — was an important moment for the country, as the Space...
NASA Jet Propulsion Laboratory (JPL)
https://www.jpl.nasa.gov › missions
Explorer 1 - Earth Missions - NASA Jet Propulsion …
Explorer 1 launches successfully into space, marking the beginning of U.S. space exploration. After more than 58,000 Earth orbits, Explorer 1 re-entered Earth's atmosphere and was destroyed. Explorer 1 makes its final transmission to Earth.
NSSDCA
https://nssdc.gsfc.nasa.gov › nmc › spacecr…
NASA - NSSDCA - Spacecraft - Details
Explorer 1 was the first successfully launched U. S. spacecraft. Launched late on 31 January 1958 (10:48 p.m. EST, or 03:48 UTC on 01 February) on an adapted Jupiter-C rocket, Explorer 1 carried instrumentation for the study of cosmic …
Explorer 1
https://explorer1.jpl.nasa.gov
Explorer 1 | Home Page
Explorer I was called “one of the landmarks in the technical and scientific history of the human race” by University of Iowa physicist James Van Allen, who designed the mission’s science …
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