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Tag: Cluster

  • Cluster reentry explained: world’s first targeted reentry

    Cluster reentry explained: world’s first targeted reentry

    The first of four satellites that make up ESA’s Cluster mission is coming safely back down to Earth, marking a brilliant end to this remarkable mission.

    The satellite’s orbit was tweaked back in January to target a region as far as possible from populated regions. This ensures that any spacecraft parts that survive the reentry will fall over open ocean.

    During 24 years in space, Cluster has sent back precious data on how the Sun interacts with Earth’s magnetic field, helping us better understand and forecast potentially dangerous space weather.

    With this first ever targeted reentry, Cluster goes down in history for a different reason, taking ESA well beyond international space safety standards and helping ensure the long-term sustainability of space activities.

    Credits: ESA – European Space Agency

    Chapters:
    00:00 Introduction to the Cluster Mission
    02:17 How do we deorbit a satellite?
    05:05 Why does Cluster’s reentry matter so much?
    06:15 Conclusion

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    We are Europe’s gateway to space. Our mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out https://www.esa.int/ to get up to speed on everything space related.

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    #ESA #Satellite #Reentry

  • Zoom Into Pandora’s Cluster ✨ #shorts

    Zoom Into Pandora’s Cluster ✨ #shorts

    Astronomers estimate 50 000 sources of near-infrared light are represented in this image from the NASA/ESA/CSA James Webb Space Telescope. Their light has travelled through various distances to reach the telescope’s detectors, representing the vastness of space in a single image. A foreground star in our own galaxy, to the right of the image centre, displays Webb’s distinctive diffraction spikes. Bright white sources surrounded by a hazy glow are the galaxies of Pandora’s Cluster, a conglomeration of already-massive clusters of galaxies coming together to form a mega cluster. The concentration of mass is so great that the fabric of spacetime is warped by gravity, creating a natural, super-magnifying glass called a ‘gravitational lens’ that astronomers can use to see very distant sources of light beyond the cluster that would otherwise be undetectable, even to Webb.

    Credit: ESA/Webb, NASA & CSA, P. Kelly, Dark Energy NASA, ESA, CSA, I. Labbe (Swinburne University of Technology), R. Bezanson (University of Pittsburgh), A. Pagan (STScI). Dark Energy Survey/DOE/FNAL/NOIRLab/NSF/AURA, DSS, N. Bartmann, E. Slawik, N. Risinger, D. de Martin, M. Zamani
    Music: Tonelabs – The Red North

    #ESA #Webb #Space

  • ESA’s missions to the Sun

    ESA’s missions to the Sun

    ESA’s new Sun-explorer, Solar Orbiter, will capture close-up images of never before seen regions of our parent star, including the poles, and study the electromagnetic environment in its vicinity. The cutting-edge spacecraft will get as close as 42 million kilometres away from the Sun, about a quarter of the distance between the Sun and Earth, and face scorching temperatures of up to 500°C.

    ESA has a long history of studying the Sun from space. Since the launch of Ulysses in 1990, the agency has led or cooperated on several Sun-exploring missions including SOHO, the Cluster quartet and Proba-2.

    Learn more about the Sun: http://bit.ly/LivingWithAStar

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    We are Europe’s gateway to space. Our mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out http://www.esa.int/ESA to get up to speed on everything space related.

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    #SpaceScience
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  • 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

  • ESA – Space to Relax / Stellar Works of Art

    ESA – Space to Relax / Stellar Works of Art

    Journey through galaxies, past star-forming clouds, around mammoth stars, and inside gas and dust nebulas. A relaxation programme of astronomical wonders by the European Space Agency.

    Originally produced for Lufthansa inflight entertainment (released June 2011).

    Credit images: XMM-Newton, Herschel, Planck, Cluster, Integral, Joint ESA/NASA Hubble Space Telescope and ESA amateur ground-based cameras.
    Credit music: “Dream Elements” by Green Sun, licensed by AmbientMusicGarden.com