The first internet connection in Cuba was established in 1996 as a 64 Kbps link via Sprint in the United States. In 2011, with help from Venezuela, Cuba installed the ALBA-1 undersea fiber-optic cable, which became publicly usable in January 2013, replacing the old satellite backbone. From December 6–8, 2018, ETECSA rolled out mobile internet…
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SOHO (Solar and Heliospheric Observatory), launched in 1995, became the first satellite to continuously observe the Sun from the Sun–Earth L1 point and carries the LASCO coronagraph, enabling CME tracking and the discovery of more than 5,000 comets. ACE (Advanced Composition Explorer), launched in 1997, and NOAA’s DSCOVR (Deep Space Climate Observatory), launched in 2015,…
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September 2008: Falcon 1 reached orbit on its fourth flight, becoming the first privately developed liquid-fuel rocket to orbit Earth. December 2008: NASA awarded SpaceX a $1.6 billion Commercial Resupply Services contract to deliver cargo to the ISS. May 2012: Dragon cargo capsule became the first commercial spacecraft to rendezvous with and deliver cargo to…
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The Union of the Comoros comprises Grande Comore (Ngazidja), Anjouan (Ndzuwani), Mohéli (Mwali) and the Mayotte territory, with island geography that complicates terrestrial network rollout. Submarine cables have transformed connectivity: EASSy landed in Moroni in 2010–2011, AVASSA was completed in 2016, and FLY-LION3 landed at Itsandra, Moroni in 2019, creating three major international links. Internally,…
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NASA’s Hyperion, launched in 2000 on the EO-1 satellite, collected 220 spectral bands from 400 to 2500 nm at 30 m resolution. A hyperspectral data cube stacks hundreds of narrow wavelength bands for every ground pixel, creating a two-dimensional spatial image plus a spectral dimension. Hyperspectral imaging records hundreds of narrow bands (often 10 nm…
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As of mid-2025, Starlink is available in over 110 countries and territories. In the United States, Starlink began with limited trials in August 2020 and the public beta “Better Than Nothing Beta” in November 2020, and now has nationwide commercial coverage including Puerto Rico and the U.S. Virgin Islands, with over 2.5 million subscribers as…
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The Democratic Republic of the Congo has a population of over 100 million, but only about 27% were using the internet in early 2024, leaving roughly 75 million offline. <li Internet users rose from 1.4 million in 2013 to 28.9 million in 2023, with mobile internet subscribers jumping about 40% over three years. <li As…
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The first space images were captured in 1946 from a sub-orbital U.S. V-2 rocket at about 105 km altitude. The first actual satellite photograph of Earth was taken on August 14, 1959 by the U.S. Explorer 6 satellite. In 1960, TIROS-1 transmitted the first television image of Earth from orbit, a milestone for weather observation.…
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About 75% of the planet is obscured by cloud cover or darkness at any moment, making optical imaging inaccessible. Synthetic Aperture Radar (SAR) satellites actively illuminate the ground with microwave radar and synthesize a large aperture by moving the antenna to produce high-resolution images. SAR can operate day or night and in all weather, providing…
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Iridium operates about 66 LEO satellites at roughly 780 km, offering truly global coverage including the poles with a one-way latency around 0.1–0.2 seconds. Inmarsat uses 3–4 GEO satellites at about 35,786 km, delivering near-global coverage (roughly ±70° latitude) with about 0.5 second latency, and IsatPhone 2 offers up to 8 hours of talk and…
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