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Ascension Island

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Ascension Island is a remote volcanic island located in the South Atlantic Ocean.

Ascension Island1
Ascension Island1

It sits approximately 7°56′ south of the Equator. This makes it quite far from the coasts of Africa and South America. The island is part of a British Overseas Territory. This territory is named Saint Helena, Ascension and Tristan da Cunha.

AscensionIsland2021OSM
AscensionIsland2021OSM

Saint Helena is the main island and sits to the southeast. The Tristan da Cunha archipelago is located further south, halfway to the Antarctic Circle. Today, the island serves as a vital hub for global communications and space science.

The island's history began with early Portuguese exploration. Some records suggest the seafarer João da Nova discovered the island in 1501.

Joao da Nova
Joao da Nova

Later, Afonso de Albuquerque named it Ascension in 1503 to mark Ascension Day. For many years, the island was a dry and barren place. It offered little to passing ships except for fresh meat. Mariners would hunt seabirds or enormous female green turtles on the sandy beaches. To provide more food, the Portuguese introduced goats to the island. This made the island a useful, if lonely, stop for sailors.

In 1815, the British began an organized settlement on the island. They garrisoned the island as a precaution after Napoleon was imprisoned on Saint Helena. The Royal Navy used the location as a victualling station. This means they used it to supply ships with food and water. The island was especially important for the West Africa Squadron. This group of ships worked to stop the slave trade. The island also served as a strategic point for communications. In 1899, the Eastern Telegraph Company installed a submarine cable to connect the UK with South Africa.

The environment of Ascension Island has changed significantly over time. In 1836, Charles Darwin visited the island. He described it as an arid, treeless cinder.

Ascension Island Black igneous rocks
Ascension Island Black igneous rocks

He noted that almost nothing grew near the coast. However, he saw that people worked hard to manage water in the interior. Following advice from Darwin and botanist Joseph Hooker, a massive planting project began in 1850.

Ships brought plants from Europe, Africa, and Argentina. This effort turned the high points into a lush tropical cloud forest.

Green Mountain3
Green Mountain3

This area is now known as Green Mountain.

Astronomy has also played a major role on the island. In 1877, Sir David Gill and his wife Isobel used the island to study Mars. They used a special telescope called a heliometer. This device uses a split image to measure the distance between celestial bodies. Because the island is near the equator, they could see a large part of the sky. They had to move 20 tons of heavy equipment across lava fields.

Ascension Island Lava fields
Ascension Island Lava fields

They eventually set up camp at Mars Bay to find clearer skies. Their successful measurements of solar parallax helped advance planetary science.

During World War II, the island became a critical military site. The United States built an airbase known as "Wideawake" to support the Battle of the Atlantic.

Ascension Island, Wideawake Airfield (1)
Ascension Island, Wideawake Airfield (1)

This base allowed aircraft to perform antisubmarine warfare patrols. These patrols helped protect ships from enemy submarines. The island was also used as a staging point during the Falklands War. This history of military use helped establish the island as a permanent station for air and sea operations.

Today, Ascension Island is essential for modern technology and space exploration. It hosts a Royal Air Force station and a European Space Agency rocket tracking station. It is also home to a BBC World Service Atlantic Relay Station. One of its most important roles is supporting the Global Positioning System, or GPS. Ascension is one of only four ground antennas in the world that assists the GPS system.

Government House Ascension Island
Government House Ascension Island

Additionally, NASA operates the John Africano NASA/AFRL Orbital Debris Observatory. This facility uses a Meter Class Autonomous Telescope to track orbital debris. Tracking this space junk is necessary to keep astronauts and spacecraft safe.

Onychoprion fuscatus Ascension Island 3
Onychoprion fuscatus Ascension Island 3
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🖼️ Images & Media (17)
United States Navy Band - God Save the Queen.ogg
File:Joao_da_Nova.jpg
Joao_da_Nova.jpg
File:ASCENSION ISLAND - GEORGETOWN.jpg
ASCENSION ISLAND - GEORGETOWN.jpg
File:Ascension Island1.JPG
Ascension Island1.JPG
File:Ascension Island, Wideawake Airfield (1).JPG
Ascension Island, Wideawake Airfield (1).JPG
File:Ascension Island Comfortless Cove.jpg
Ascension Island Comfortless Cove.jpg
File:AscensionIsland2021OSM.png
AscensionIsland2021OSM.png
File:Ascension Island Black igneous rocks.jpg
Ascension Island Black igneous rocks.jpg
File:Green Mountain3.JPG
Green Mountain3.JPG
File:Ascension Island Lava fields.jpg
Ascension Island Lava fields.jpg
File:Male Frigatebird with chick Fregata aquila.jpg
Male Frigatebird with chick Fregata aquila.jpg
File:Onychoprion fuscatus Ascension Island 3.jpg
Onychoprion fuscatus Ascension Island 3.jpg

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