Sentinel-1 is the first of the Copernicus Programme satellite constellations conducted by the European Space Agency. The mission was originally composed...

Look up Sentinel or sentinel in Wiktionary, the free dictionary. Sentinel may refer to: Mount Sentinel, a mountain next to the University of Montana in...

The mission's Sentinel-2A and Sentinel-2B satellites were joined in orbit in 2024 by a third, Sentinel-2C, and in the future by Sentinel-2D, eventually...

Sentinel-1A is a European radar imaging satellite launched in 2014. It is the first Sentinel-1 satellite launched as part of the European Union's Copernicus...

The Lockheed Martin RQ-170 Sentinel, nicknamed Wraith, is an American unmanned aerial vehicle (UAV) developed by Lockheed Martin and operated by the United...

The Sentinels are a group of mutant-hunting robots appearing in American comic books published by Marvel Comics. They are typically depicted as antagonists...

The Sun Sentinel (also known as the South Florida Sun Sentinel, known until 2008 as the Sun-Sentinel, and stylized on its masthead as SunSentinel) is the...

development of Sentinel missions 1, 2, 3, 4, 5 and 6 with each Sentinel mission consisting of at least 2 satellites and some, such as Sentinel 1, 2 and 3,...

Sentinel Prime (Japanese: センチネルプライム) is a fictional character in the Transformers franchise. Generally depicted as an Autobot leader, Sentinel Prime has...

The Stinson L-5 Sentinel is a World War II-era liaison aircraft used by the United States Army Air Forces (USAAF), U.S. Army Ground Forces, U.S. Marine...

North Sentinel Island is one of the Andaman Islands, an Indian archipelago in the Bay of Bengal which also includes South Sentinel Island. The island is...

Sentinel-1B was a European radar imaging satellite launched on 25 April 2016. It is the second of two original satellites in the Sentinel-1 constellation...

Last Sentinel (also known as Last Contact in some territories) is a 2023 science fiction thriller film starring Kate Bosworth and Lucien Laviscount. It...

South Sentinel Island is one of the Andaman Islands in the Bay of Bengal. It is 1.6 km (1 mi) long northeast to southwest and up to 1 km (5⁄8 mi) wide...

Yosemite Valley, opposite Yosemite Falls. Sentinel Rock lies 0.7 miles (1.1 km) northwest of Sentinel Dome. Sentinel Rock formed when masses of rock split...

The Sentinel-class cutter, also known as the Fast Response Cutter or FRC due to its program name, is part of the United States Coast Guard's Deepwater...

The Milwaukee Journal Sentinel is a daily morning broadsheet printed in Milwaukee, Wisconsin, where it is the primary newspaper and also the largest newspaper...

also known as the Sentineli and the North Sentinel Islanders, are an indigenous people who inhabit North Sentinel Island in the Bay of Bengal in the northeastern...

The Raytheon Sentinel is a retired airborne battlefield and ground surveillance aircraft formerly operated by the Royal Air Force (RAF). While based on...

Sentinel is a comic book series published by Marvel Comics as part of the Tsunami imprint. It was written by Sean McKeever and illustrated by UDON. The...

on Terrorism. Operation Freedom's Sentinel was part of the NATO-led Resolute Support Mission, which began on January 1, 2015. OFS had two components: counterterrorism...

Sentinel-2A is a European optical imaging satellite launched in 2015. It is the first Sentinel-2 satellite launched as part of the European Space Agency's...

Sentinel species are organisms, often animals, used to detect risks to humans by providing advance warning of a danger. The terms primarily apply in the...

Sentinel data C-Band frequency". Journal of Physics: Conference Series. 1185 (1): 012004. Bibcode:2019JPhCS1185a2004W. doi:10.1088/1742-6596/1185/1/012004...

the Sentinel constellation of satellites. Currently, 7 missions are planned, each for a different application. Sentinel-1 (SAR imaging), Sentinel-2 (decameter...

The AC1 Sentinel was a cruiser tank designed in Australia in World War II in response to the war in Europe, and to the threat of Japan expanding the war...

In computer programming, a sentinel value (also referred to as a flag value, trip value, rogue value, signal value, or dummy data) is a special value in...

launch. The mission has been replaced by the Sentinel series of satellites. The first of these, Sentinel 1, has taken over the radar duties of Envisat...

The Sentinel. 5 September 2009. Archived from the original on 27 February 2012. Retrieved 1 September 2010. "Stab accused in wheelchair". The Sentinel. 20...

The Sentinel is a 1977 American supernatural horror film directed by Michael Winner, and starring Chris Sarandon, Cristina Raines, Ava Gardner, Burgess...