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Copernical Team
NASA launches new mission to monitor Earth's landscapes
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DARPA'S Hypersonic Air-breathing Weapon Concept achieves successful flight
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Recreating "real food meals" as small cubes that taste like candy
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Space Force upskilling Guardians with process mapping and automation
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Virgin Galactic cleared to launch after US closes safety probe
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ESA Open Day on our Web TV
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![Jupiter antenna that came in from the cold](https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2021/05/jupiter_antenna_that_came_in_from_the_cold/23325653-1-eng-GB/Jupiter_antenna_that_came_in_from_the_cold_card_full.jpg)
ESA Web TV is offering live coverage of events across ESA establishments during Sunday afternoon’s ESA Open Day.
Cosmic kit
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![ESA astronaut Matthias Maurer wearing the SpaceX spacesuit](https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2021/09/cosmic_kit/23485862-1-eng-GB/Cosmic_kit_card_full.jpg)
Aerosols released from Australian bushfires triggers algal blooms
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![Smoke and flames in Australia](https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/01/smoke_and_flames_in_australia/21788537-1-eng-GB/Smoke_and_flames_in_Australia_card_full.jpg)
Australia’s deadly bushfires in the 2019-2020 season generated 700 million tonnes of carbon dioxide in the atmosphere – triggering vast algal blooms in the Southern Ocean. Using satellite data, two new studies published in Nature prove how satellites can illuminate the complicated ways in which Earth is responding to climate change in an era of worsening wildfires.
Virgin Galactic says FAA has cleared it for further flights
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![In this July 11, 2021, file photo Virgin Galactic founder Richard Branson shows his Virgin Galactic made astronaut wings pin after his flight to space from Spaceport America near Truth or Consequences, N.M. Virgin Galactic says the Federal Aviation Administration has cleared it to resume launches after an investigation into why its spaceship veered off course while descending during a July flight over New Mexico with Branson aboard. The company said Wednesday, Sept. 29, 2021, it was advised by the FAA that corrective actions proposed by Virgin Galactic have been accepted. Credit: AP Photo/Andres Leighton, File Virgin Galactic says FAA has cleared it for further flights](https://scx1.b-cdn.net/csz/news/800a/2021/virgin-galactic-says-f.jpg)
The spectrum of gravitational waves
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Gravitational waves are ripples in spacetime produced by the acceleration of very massive objects, such as black holes coming together and merging. Different objects in space produce gravitational waves of different timescales, ranging from milliseconds to billions of years. Some of these waves can only be observed from space.
This is the goal of ESA’s future mission LISA, which will be the first space-based gravitational wave observatory.
LISA will study gravitational waves that are produced by merging stellar mass black holes, supermassive black holes and white dwarfs. It will also pick up the waves produced by compact objects, like neutron stars