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The NASA Extreme Environment Mission Operations (NEEMO) 21 mission began on July 21, 2016, as an international crew of aquanauts splashed down to the undersea Aquarius Reef Base, 62 feet below the surface of the Atlantic Ocean. The NEEMO 21 crew will p…

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Robots are an essential companion to mankind in space, and many of the modern-day masters of these robots are to be found in Montreal, home to the Canadian Space Agency.

Euronews Space has unique access to the team, among them operations e…

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The island of Tongatapu and the nearby smaller islands – all part of the Kingdom of Tonga archipelago in the southern Pacific Ocean – are pictured in this Sentinel-2A image from 23 May.

Tonga’s population is spread across 36 of Tonga’s 169 islands, but about 70% live on this main island. The capital, Nukuʻalofa, sits on the island’s north coast and along the Fanga’uta Lagoon. The lagoon’s mangroves provide an important breeding ground for fish and birds.

Built on limestone, the island has fertile soil of volcanic ash from neighbouring volcanoes, and we can see how agricultural structures cover most of the island. Crops include root crops such as sweet potato and cassava, as well as coconuts, bananas and coffee beans.

North of the island we can see many coral reefs. Although not part of its original mission objectives, scientists are experimenting with Sentinel-2 to monitor corals and detect coral bleaching – a consequence of higher water temperatures.

Bleaching happens when algae living in the corals’ tissues, which capture the Sun’s energy and are essential to coral survival, are expelled owing to the higher temperature.

The whitening coral may die, with subsequent effects on the reef ecosystem, and thus fisheries, regional tourism and coastal protection.

The recent El Niño weather phenomenon has caused increased bleaching across the world’s corals, and scientists are finding Sentinel-2’s coverage helpful in monitoring this at reef-wide scales.

This image is also featured on the Earth from Space video programme.

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Earth from Space is presented by Kelsea Brennan-Wessels from the ESA Web-TV virtual studios. Discover the southern Pacific Ocean island, Tongatapu, in the one hundred ninety-fourth edition.

See also Earth from Space: Tonga to download the …

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This view of a massive cluster of galaxies unveils a very cluttered-looking universe filled with galaxies near and far. Some are distorted like a funhouse mirror through a “space warp” phenomenon first predicted by Einstein a century ago.

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The AMSAT-UK International Space Colloquium at the Holiday Inn, Guildford will hear presentations from Peter Gülzow DB2OS and Achim Vollhardt DH2VA on the new geostationary amateur radio satellite transponders due to launch early in 2017. The two transponders will provide … Continue reading

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Located on the UK Space Gateway, Harwell Campus, the ESA-RAL Advanced Manufacturing Laboratory provides expertise and test services to investigate and optimise advanced materials and manufacturing processes in support of cutting-edge research and development. The facility is physically located within the Science and Technology Facilities Council’s Rutherford Appleton Laboratory (RAL).

The laboratory takes in samples of material destined for future space projects and puts them through various tests. A wide range of material properties and characteristics can be investigated in order to provide recommendations on how the materials can best be applied or improved before they can be considered for further development and used in a fully-fledged space mission. It has access to a metal-based 3D printer and is equipped with a suite of powerful microscopes, an X-ray CT machine and a range of furnaces. Mechanical testing such as tensile and micro hardness testing is also performed.

The lab is a gateway to accessing some of the extensive on-site testing facilities based on Harwell Campus, such as STFC’s ISIS Neutron Source, the Diamond Light Source synchrotron and the UK’s Central Laser Facility.

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NASA is joining with Baylor College of Medicine in Houston to operate a new institute charged with researching and developing innovative approaches to reduce risks to humans on long-duration exploration missions, including NASA’s Journey to Mars.

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Using NASA’s Hubble Space Telescope, astronomers have conducted the first search for atmospheres around temperate, Earth-sized planets beyond our solar system and found indications that increase the chances of habitability on two exoplanets.

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On July 20, 1976, at 8:12 a.m. EDT, NASA received the signal that the Viking Lander 1 successfully reached the Martian surface. This major milestone represented the first time the United States successfully landed a vehicle on the surface of Mars, coll…

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