Video Kidibot

Category: Astronomie

  • Paxi – L’Effet de serre

    Paxi – L’Effet de serre

    Rejoignez Paxi alors qu’il explore l’effet de serre pour en savoir plus sur le réchauffement climatique.

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  • Paxi – Kasvihuoneilmiö

    Paxi – Kasvihuoneilmiö

    Liity Paxiin, kun hän tutkii kasvihuoneilmiötä saadakseen tietoa ilmaston lämpenemisestä.

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  • Paxi – Drivhuseffekt

    Paxi – Drivhuseffekt

    Deltag i Paxi, da han udforsker drivhuseffekten for at lære om global opvarmning.

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  • Paxi – Skleníkový efekt

    Paxi – Skleníkový efekt

    Připojte se k Paxi, když zkoumá skleníkový efekt, abyste se dozvěděli o globálním oteplování.

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  • Time-lapse: Preparing Sentinel-3B for liftoff

    Time-lapse: Preparing Sentinel-3B for liftoff

    See in this time-lapse how the Sentinel-3B satellite was prepared for its liftoff on 25 April 2018 from Plesetsk in Russia.

    Sentinel-3B joined its twin, Sentinel-3A, in orbit. The pairing of identical satellites provides the best coverage and data delivery for Europe’s Copernicus programme – the largest environmental monitoring programme in the world. The satellites carry the same suite of cutting-edge instruments to measure oceans, land, ice and atmosphere.

    Credits: Directed by Stephane Corvaja, ESA;
    Edited by Manuel Pedoussaut, Zetapress;
    Music by Hubrid-Rockot

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    Watch the first set of images taken by Sentinel-3B http://bit.ly/FirstImagesSentinel3B

  • Cold Atom Lab Launching on Board Orbital ATK Mission to Space Station

    Cold Atom Lab Launching on Board Orbital ATK Mission to Space Station

    The new Cold Atom Lab (CAL) facility is among the cargo launching to the International Space Station on the Orbital ATK CRS-9 mission. The Cold Atom Lab could help answer some big questions in modern physics. CAL produces clouds of atoms that are ten billion times colder than deep space. The facility uses lasers and magnetic forces to freeze the atoms until they are almost motionless. In the microgravity environment on the space station, it’s possible to observe these ultra-cold atoms for much longer in than what’s possible on the ground. The research done using CAL could potentially lead to a number of improved technologies, including sensors, quantum computers and atomic clocks used in spacecraft navigation. Read more at: https://coldatomlab.jpl.nasa.gov/

  • Astronauts Working Outside the Space Station on This Week @NASA – May 18, 2018

    Astronauts Working Outside the Space Station on This Week @NASA – May 18, 2018

    Our astronauts doing work outside the space station, an agencywide town hall with our new administrator, and old data provide new insight about Jupiter’s moon Europa – a few of the stories to tell you about – This Week at NASA!

    This video is available for download from NASA’s Image and Video Library: https://images.nasa.gov/details-NHQ_2018_0518_Astronauts%20Working%20Outside%20the%20Space%20Station%20on%20This%20Week%20@NASA%20%E2%80%93%20May%2018,%202018.html

  • ESA Euronews: Gaia’s revolution in astronomy

    ESA Euronews: Gaia’s revolution in astronomy

    Astronomy is undergoing a revolution with the release of precision data on 1.7 billion stars in our galaxy from the Gaia space telescope. We head to the historic Observatory of Paris and ESA’s ESTEC base in the Netherlands to find out more.

    It’s fair to say that science has been waiting for centuries, or even millennia for such a detailed survey of the Milky Way, and right now star-gazers are swamped with fresh, high-quality data that they can use to answer every question about the galaxy they ever wanted to ask.

    This video is also available in the following languages:
    German: https://youtu.be/I7EHdEnXGi4
    French: https://youtu.be/dJRPGaS3VB4
    Italian: https://youtu.be/hyOdUHRCDYA
    Spanish: https://youtu.be/BCP4xg6sGeY
    Portuguese: https://youtu.be/OeBMRQmojXc
    Greek: https://youtu.be/Ra0BOhFJ4NU
    Hungarian: https://youtu.be/-PYmrCk1iwM

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    Learn more: http://bit.ly/GaiaRickestStarMap

  • ESA Euronews: Revolução de Gaia na astronomia

    ESA Euronews: Revolução de Gaia na astronomia

    Nesta edição de “Space”, a partir do Observatório de Paris, vamos encontrar-nos com astrónomos que trabalham numa missão especial do telescópio Gaia, que tem vigiado mais de mil milhões de estrelas da nossa galáxia, tentando dar resposta a alguns dos mistérios da Via Láctea.

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    Saber mais: http://www.esa.int/por/ESA_in_your_country/Portugal/Gaia_cria_o_mapa_estelar_mais_completo_da_nossa_Galaxia_-_e_mais_alem

  • ESA Euronews: Die Revolution von Gaia

    ESA Euronews: Die Revolution von Gaia

    Astronomen haben mit Daten vom Weltraumteleskop Gaia eine Himmelskarte mit mehr als einer Milliarde Sternen erstellt – mehr als genug Material für Jahrzehnte der Forschung.

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    Mehr erfahren: http://www.esa.int/ger/ESA_in_your_country/Germany/Gaia-Daten_liefern_genaueste_Karte_unserer_Galaxie_und_der_unmittelbaren_Nachbarschaft

  • A Copter Companion for the Mars 2020 Rover on This Week @NASA – May 11, 2018

    A Copter Companion for the Mars 2020 Rover on This Week @NASA – May 11, 2018

    Sending a helicopter to Mars, a busy week for our new Administrator, and showcasing how technology enables exploration – a few of the stories to tell you about – This Week at NASA!

    This video is available for download from NASA’s Image and Video Library: https://images.nasa.gov/details-NHQ_2018_0511_A%20Copter%20Companion%20for%20the%20Mars%202020%20Rover%20on%20This%20Week%20@NASA%20%E2%80%93%20May%2011,%202018.html

  • Fly over Neukum crater

    Fly over Neukum crater

    This movie, based on images taken by ESA’s Mars Express, showcases the 102 km wide Neukum Crater in the southern hemisphere of Mars.

    The crater is named for the German physicist and planetary scientist, Gerhard Neukum, one of the founders of ESA’s Mars Express mission who inspired and led the development of the high-resolution stereo camera on Mars Express.

    This complex impact crater has a diverse geologic history, as indicated by various features on the crater rim and floor. Particularly striking are the dark dune fields, likely made up of volcanic material blown in and shaped by strong winds.

    The crater’s shallow interior has been infilled by sediments over its history. It is also marked with two irregular depressions that may be a sign of a weaker material that has since eroded away, leaving behind some islands of more resistant material.

    Over time the crater rim has undergone varying degrees of collapse, with landslides and slumped material visible in the crater walls. Many smaller craters have also overprinted the rim and pockmarked the interior since Neukum Crater was formed, highlighting its long history.

    Neukum Crater is situated in Noachis Terra, one of the oldest known regions on Mars, dating back to at least 3.9 billion years.

    Credits: Animation: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO; Music: Coldnoise, CC BY-SA 4.0 and Adrian Neesemann

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    Learn more: http://bit.ly/ESACraterNeukum

  • Our Newest Mission to Mars on This Week @NASA – May 5, 2018

    Our Newest Mission to Mars on This Week @NASA – May 5, 2018

    Our newest mission to Mars is on its way, Vice President Pence visits our Jet Propulsion Laboratory, and observing our planet’s ever-changing water cycle – a few of the stories to tell you about – This Week at NASA!

    This video is available for download from NASA’s Image and Video Library: https://images.nasa.gov/details-NHQ_20218_0505_Our%20Newest%20Mission%20to%20Mars%20on%20This%20Week%20@NASA%20%E2%80%93%20May%205,%202018.html

  • NASA’s InSight Mars Mission: Countdown to T-Zero

    NASA’s InSight Mars Mission: Countdown to T-Zero

    InSight, NASA’s next Mars explorer, has arrived at Vandenberg Air Force Base in California – a big step forward in the countdown to T-zero on May 5, 2018. The spacecraft is called InSight – short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport – and it’s being tested, fueled and encapsulated for launch aboard the powerful United Launch Alliance Atlas V rocket. The upcoming liftoff will mark the first time an interplanetary mission has launched from the West Coast.

  • Mars sample return

    Mars sample return

    Spacecraft in orbit and on Mars’s surface have made many exciting discoveries, transforming our understanding of the planet and unveiling clues to the formation of our Solar System, as well as helping us understand our home planet. The next step is to bring samples to Earth for detailed analysis in sophisticated laboratories where results can be verified independently and samples can be reanalysed as laboratory techniques continue to improve.

    Bringing Mars to Earth is no simple undertaking—it would require at least three missions from Earth and one never-been-done-before rocket launch from Mars.

    A first mission, NASA’s 2020 Mars Rover, is set to collect surface samples in pen-sized canisters as it explores the Red Planet. Up to 31 canisters will be filled and readied for a later pickup – geocaching gone interplanetary.

    In the same period, ESA’s ExoMars rover, which is also set to land on Mars in 2021, will be drilling up to two meters below the surface to search for evidence of life.

    A second mission with a small fetch rover would land nearby and retrieve the samples in a Martian search-and-rescue operation. This rover would bring the samples back to its lander and place them in a Mars Ascent Vehicle – a small rocket to launch the football-sized container into Mars orbit.

    A third launch from Earth would provide a spacecraft sent to orbit Mars and rendezvous with the sample containers. Once the samples are safely collected and loaded into an Earth entry vehicle, the spacecraft would return to Earth, release the vehicle to land in the United States, where the samples will be retrieved and placed in quarantine for detailed analysis by a team of international scientists.

    Credits: NASA/ESA

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    Learn more: http://bit.ly/BringingMartianSoilToEarth

  • Bridenstine Sworn in as NASA Administrator on This Week @NASA – April 27, 2018

    Bridenstine Sworn in as NASA Administrator on This Week @NASA – April 27, 2018

    Vice President Pence swears in our new NASA Administrator, a Hubble anniversary flythrough of a nebula, and the smell in the clouds of one of our outermost planets – a few of the stories to tell you about – This Week at NASA!

    This video is available for download from NASA’s Image and Video Library: https://images.nasa.gov/details-NHQ_2018_0427_%20Bridenstine%20Sworn%20in%20as%20NASA%20Administrator%20on%20This%20Week%20@NASA%20%E2%80%93%20April%2027,%202018.html

  • ESA at ILA roundup day 3

    ESA at ILA roundup day 3

    Roundup from ESA WebTV of Day 3 at the Berlin Air and Space Show, 27 April

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    Learn more: http://bit.ly/ESAAtILA

  • ESA at ILA round up day 2

    ESA at ILA round up day 2

    Roundup of Day 2 at the Berlin Air and Space Show, 26 April

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    Learn more: bit.ly/ESAAtILA

  • Earth from Space: Cloud-free Europe

    Earth from Space: Cloud-free Europe

    Earth from Space is presented by Kelsea Brennan-Wessels from the ESA Web TV virtual studios. A mosaic of cloud-free images from the Copernicus Sentinel-3A satellite spanning Europe is featured in this edition.

    See also http://www.esa.int/spaceinimages/Images/2018/04/Cloud-free_Europe to download the image.

    Image acquired by Sentinel-3

    Animation credits: ATG medialab

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  • Sentinel-3B highlights

    Sentinel-3B highlights

    The Copernicus Sentinel-3B satellite spent six weeks at the Plesetsk cosmodrome in Russia being carefully prepared for liftoff. After being shipped from France to the launch site, the satellite was tested, joined to the rocket launch adapter, sealed from view in the fairing and taken by train to the launch pad. Sentinel-3B lifted off on 25 April 2018 at 17:57 GMT (19:57 CEST).

    It joins its twin, Sentinel-3A, in orbit. The pairing of identical satellites provides the best coverage and data delivery for Europe’s Copernicus programme – the largest environmental monitoring programme in the world. The satellites carry the same suite of cutting-edge instruments to measure oceans, land, ice and atmosphere. While these data are fed primarily into the Copernicus Marine Environment Monitoring Service, all the Copernicus services benefit to produce knowledge and information products in near-real time for a wide range of applications. The Sentinel-3 mission is essential for applications for ocean and coastal monitoring, numerical weather and ocean prediction, sea-level change and sea-surface topography monitoring, ocean primary production estimation and land-cover change mapping.

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  • Gaia second data release

    Gaia second data release

    The second data release of ESA’s Gaia mission has produced an extraordinary catalogue of over one and a half billion stars in our galaxy. Based on observations between July 2014 to May 2016, it includes the most accurate information yet on the positions, brightness, distance, motion, colour and temperature of stars in the Milky Way as well as information on asteroids and quasars.

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    Learn more: http://bit.ly/GaiaRickestStarMap

  • The Hyades cluster

    The Hyades cluster

    Animated 3D view of the sky as observed by ESA’s Gaia satellite using information from the mission’s second data release.

    The bright band in the left half of the image is the Milky Way, where most of the stars in our Galaxy reside. The animation starts with the Orion constellation at the centre; we then move towards the neighbouring Taurus constellation and to the Hyades star cluster, which is part of this constellation. Hyades is the closest open cluster to the Solar System, some 150 light-years away.

    The animation first shows the 3D structure of the cluster, based on accurate position and distance information from Gaia. Then an animated view of the future motions of stars is shown – both in Hyades and beyond. This is based on Gaia’s measurements of the velocity of stars across the sky, also known as proper motion.

    Credit: ESA/Gaia/DPAC, CC BY SA 3.0 IGO

    Acknowledgement: Gaia Data Processing and Analysis Consortium (DPAC); Gaia Sky; S. Jordan / T. Sagristà, Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Germany

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    Learn more: bit.ly/GaiaRickestStarMap

  • Gaia’s first asteroid survey

    Gaia’s first asteroid survey

    Animated view of 14 099 asteroids in our Solar System, as viewed by ESA’s Gaia satellite using information from the mission’s second data release. The orbits of the 200 brightest asteroids are also shown, as determined using Gaia data.

    In future data releases, Gaia will also provide asteroid spectra and enable a complete characterisation of the asteroid belt. The combination of dynamical and physical information that is being collected by Gaia provides an unprecedented opportunity to improve our understanding of the origin and the evolution of the Solar System.

    Credit: ESA/Gaia/DPAC, CC BY SA 3.0 IGO

    Acknowledgement: Gaia Data Processing and Analysis Consortium (DPAC); Orbits: Gaia Coordinating Unit 4; P. Tanga, Observatoire de la Côte d’Azur, France; F. Spoto, IMCCE, Observatoire de Paris, France; Animation: Gaia Sky; S. Jordan / T. Sagristà, Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Germany

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    Learn more: bit.ly/GaiaRickestStarMap

  • 360º Parallax and proper motion on the sky

    360º Parallax and proper motion on the sky

    A 360° animated view of the entire sky on 25 April 2018.

    After a few seconds, the stars start moving in the sky according to parallax, an apparent shift caused by Earth’s yearly motion around the Sun. Then, constellation outlines appear as visual aids. Finally, stars start moving according to their true motion through space, which is visible on the sky as proper motion. Parallaxes have been exaggerated by 100 000 and proper motions have been speeded up by one trillion (10^12) to make them visible in this animation. This animation is based on data from the second data release of ESA’s Gaia satellite, which has measured the positions, parallaxes and motions of more than one billion stars across the sky to unprecedented accuracy.

    ESA/Gaia/DPAC, CC BY SA 3.0 IGO

    Acknowledgement: Gaia Data Processing and Analysis Consortium (DPAC); Gaia Sky; S. Jordan / T. Sagristà, Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Germany

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    Learn more: http://bit.ly/GaiaRickestStarMap

  • Welcome Jim Bridenstine to the NASA Family

    Welcome Jim Bridenstine to the NASA Family

    Jim Bridenstine officially took office as the 13th administrator of NASA on Monday, April 23rd, after he was given the oath of office by Vice President Mike Pence at the agency’s headquarters in Washington.

    This video is available for download from NASA’s Image and Video Library:
    https://go.nasa.gov/2vIT6Iw

  • To Europe’s spaceport!

    To Europe’s spaceport!

    Meet our new space explorers, the spacecraft of the BepiColombo mission, as they begin their adventure to planet Mercury. But first, they have to navigate through Amsterdam Schiphol airport to reach Europe’s spaceport in Kourou, French Guiana.

    The spacecraft really do depart from Schiphol; along with essential ground-support equipment they are scheduled to fly in a series of Antonov aircraft during the last week of April and first week of May. Upon arrival at Kourou, an intensive six-months of preparations will prepare the mission for launch. The launch window opens 5 October until 29 November 2018.

    Find out more about the BepiColombo mission on esa.int/bepicolombo

    Credits: ESA

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    Follow Bepi: http://bit.ly/BepiTwitter
    Follow MMO: http://bit.ly/MMOTwitter
    Follow MTM: http://bit.ly/MTMtwitterESA

  • Waiting for Gaia

    Waiting for Gaia

    On 25 April 2018, ESA’s Gaia mission will publish its much awaited second data release, including high-precision measurements of nearly 1.7 billion stars in our Galaxy.

    Scientists who have been working on creating and validating the data contained in the catalogue tell us why they are waiting for this extraordinary release.

    Featured in the video: Antonella Vallenari (INAF, Astronomical Observatory of Padua), Anthony Brown (Leiden University), Timo Prusti (European Space Agency), Annie Robin (Institut UTINAM, OSU THETA Franche-Comté-Bourgogne), Laurent Eyer (University of Geneva) and Federica Spoto (IMCCE, Observatory of Paris).

    A media briefing on the second Gaia data release will be held at the ILA Berlin Air and Space Show in Germany on 25 April 11:00-12:15 CEST. Watch the webstream at www.esa.int/live

    Learn more about Gaia: bit.ly/ESAsGaia

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  • ESA Euronews: Surfing scientists

    ESA Euronews: Surfing scientists

    We meet a surfing scientist and toxic algae hunters to see how Sentinel-3 satellite data is used to study the coastline of the English Channel in this month’s episode of Space.

    Bob Brewin is pioneering a new technique in satellite oceanography – by going surfing.
    The Plymouth Marine Laboratory scientist uses his board to take sea surface temperature measurements, and then use them to better interpret data from European satellite Sentinel-3.

    This video is also available in the following languages:
    German: https://youtu.be/1dU52RA1IEE
    French: https://youtu.be/kSJXmrSWG-s
    Italian: https://youtu.be/PRPvcvZgQno
    Spanish: https://youtu.be/H0vQdyanyKk
    Portuguese: https://youtu.be/_nP6Bmpa6YQ
    Greek: https://youtu.be/y4zObvFjckY
    Hungarian: https://youtu.be/kj3-iO2S4UQ

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  • European Space Agency (ESA) Video on CPR

    European Space Agency (ESA) Video on CPR

    Astronautas de la ESA (Agencia Espacial Europea) explican las maniobras de RCP. El astronauta, Paolo Nespoli, practica habilidades de resucitación cardiopulmonar que salvan vidas a bordo de la Estación Espacial Internacional. Dos miembros de la tripulación de la Estación Espacial son asignados como Oficiales Médicos de la Tripulación y están capacitados para proporcionar apoyo médico durante su misión. Ofrecen apoyo médico básico como un paramédico en la Tierra.

  • Earth from Space: special edition

    Earth from Space: special edition

    In this special edition of Earth from Space, senior project scientist at Gamma Remote Sensing, Dr Maurizio Santoro, joins the show to discuss how his team estimates forest biomass from space.

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  • The European Space Agency Explained

    The European Space Agency Explained

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    If you enjoyed the video, please drop a like!

    When people think about the big players of the space industry, they don’t tend to think about Europe. But believe it or not the European Space Agency or ESA has the second highest budget out of any space agency. So what are they doing with all that money?

    Narration by Mark Lurenana

    Written and Edited by David Blom – https://twitter.com/leavedavidalone

    Music:
    Cycles – Audionautix
    European Union Anthem
    Simon Bichbihler – In the 1980’s

    Thank you to In60learning for sponsoring this video.

    #EuropeanSpaceAgency #ESA #Explained

  • Human Exploration Rover Challenge on This Week @NASA – April 13, 2018

    Human Exploration Rover Challenge on This Week @NASA – April 13, 2018

    A challenge for the next generation of explorers, an eye-popping virtual tour of the Moon, and introducing the public to a universe of discovery – a few of the stories to tell you about – This Week at NASA!

    This video is available for download from NASA’s Image and Video Library: https://images.nasa.gov/details-NHQ_2018_0413_Human%20Exploration%20Rover%20Challenge%20on%20This%20Week%20@NASA%20%E2%80%93%20April%2013,%202018.html

  • Low 3-D Flyover of Jupiter’s North Pole in Infrared

    Low 3-D Flyover of Jupiter’s North Pole in Infrared

    In this animation the viewer is taken low over Jupiter’s north pole to illustrate the 3-D aspects of the region’s central cyclone and the eight cyclones that encircle it.
    Read more: https://www.nasa.gov/feature/jpl/nasa-s-juno-mission-provides-infrared-tour-of-jupiter-s-north-pole
    The movie utilizes imagery derived from data collected by the Jovian Infrared Auroral Mapper (JIRAM) instrument aboard NASA’s Juno mission during its fourth pass over the massive planet. Infrared cameras are used to sense the temperature of Jupiter’s atmosphere and provide insight into how the powerful cyclones at Jupiter’s poles work. In the animation, the yellow areas are warmer (or deeper into Jupiter’s atmosphere) and the dark areas are colder (or higher up in Jupiter’s atmosphere). In this picture the highest “brightness temperature” is around 260K (about -13°C) and the lowest around 190K (about -83°C). The “brightness temperature” is a measurement of the radiance, at 5 µm, traveling upward from the top of the atmosphere towards Juno, expressed in units of temperature.
    Credit: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM

  • Paxi on the ISS: Sleeping in space

    Paxi on the ISS: Sleeping in space

    Our alien friend Paxi, ESA Education’s mascot, went to visit American astronaut Scott Tingle on board the International Space Station. Tingle tells Paxi about how astronauts sleep in weightlessness, an important aspect of living on the ISS.

    Credit: ESA/NASA

    #ESA
    #Paxi
    #InternationalSpaceStation

  • Lowering the Boom of Supersonic Flight on This Week @NASA – April 6, 2018

    Lowering the Boom of Supersonic Flight on This Week @NASA – April 6, 2018

    Building the future of quiet supersonic flight, science and supplies delivered to the space station, and uncovering the farthest star ever seen – a few of the stories to tell you about, This Week at NASA!

    This video is available for download from NASA’s Image and Video Library: https://images.nasa.gov/details-Lowering%20the%20Boom%20of%20Supersonic%20Flight%20on%20This%20Week%20@NASA%20%E2%80%93%20April%206,%202018.html

  • NASA Psyche Mission: Journey to a Metal World

    NASA Psyche Mission: Journey to a Metal World

    Psyche is both the name of an asteroid orbiting the Sun between Mars and Jupiter — and the name of a NASA space mission to visit that asteroid, led by Arizona State University. Join the Psyche team to explore why this mission was selected for NASA’s Discovery Program, how we’ll get to the asteroid, what we hope to learn from Psyche, and the importance of scientific discovery.
    Credits: NASA/JPL-Caltech/Arizona State Univ./Peter Rubin/SSL

  • ESA – Space to Relax / Europe from Space

    ESA – Space to Relax / Europe from Space

    Having a stressful day? We got you covered! Sit back, turn the volume up and enjoy a relaxing moment brought to you by ESA and Lufthansa exploring the countries which make up the European Space Agency with images taken by the Copernicus Sentinel-1A, Sentinel-2A and Sentinel-3A, Proba-V and Envisat satellites.

    Don’t forget to favourite this video. You will always have a space to relax with us.

    Music by Matt Baute.

  • Astronauts at Work Outside the Space Station on This Week @NASA – March 30, 2018

    Astronauts at Work Outside the Space Station on This Week @NASA – March 30, 2018

    Our astronauts at work outside the space station, preparing for launch of our next planet-hunting mission, and finding exploding stars – a few of the stories to tell you about, This Week at NASA!

    This video is available for download from NASA’s Image and Video Library: https://images.nasa.gov/details-NHQ_2018_0330_Astronauts%20at%20Work%20Outside%20the%20Space%20Station%20on%20This%20Week%20@NASA%20%E2%80%93%20March%2030,%202018.html

  • ESA reentry expertise

    ESA reentry expertise

    Every week, on average, a substantial, inert satellite drops into our atmosphere and burns up. Monitoring these reentries and warning European civil authorities has become routine work for ESA’s space debris experts.

    Each year, about 100 tonnes of defunct satellites, uncontrolled spacecraft, spent upper stages and discarded items like instrument covers are dragged down by Earth’s upper atmosphere, ending their lives in flaming arcs across the sky.

    Some of these objects are big and chunky, and pieces of them survive the fiery reentry to reach the surface. Our planet, however, is a big place, mostly covered by water, and much of what falls down is never seen by anyone, sinking to the bottom of some ocean, or landing far from human habitation.

    While still in orbit, these and many other objects are tracked by a US military radar network, which shares the data with ESA, since Europe has no such capability of its own.It’s the task of ESA’s Space Debris team to look at these data and issue updates to ESA Member States and partner civil authorities around the globe.

    Visit http://www.esa.int/Our_Activities/Operations/Space_Debris/ESA_reentry_expertise to learn more