Archive | Science

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Spectra detectives

Video: 00:01:00 Spectroscopy is a tool that astronomers use to better understand the physics of objects in space. The spectrographs on board the James Webb Space Telescope (Webb ) provide scientists with the data needed to analyse the materials that make up stars, nebulae, galaxies and the atmospheres of planets. Light that enters the telescope […]

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Caution! Martian wind at work

This image from ESA’s Mars Express shows part of possibly the largest single source of dust on Mars: a wind-sculpted feature known as the Medusae Fossae Formation, or MFF. To source

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Balloon boom

Video: 00:01:02 The 3 m-long magnetometer boom of the Solar wind Magnetosphere Ionosphere Link Explorer (Smile) is deployed under helium-filled balloons to simulate the weightlessness conditions of space. Smile is a joint mission between ESA and the Chinese Academy of Sciences (CAS) and will aim to build a more complete understanding of the Sun-Earth connection […]

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Gaia reveals a new member of the Milky Way family

Image: Our galaxy, the Milky Way, began forming around 12 billion years ago. Since then, it has been growing in both mass and size through a sequence of mergers with other galaxies. Perhaps most exciting is that this process has not quite finished, and by using data from ESA’s Gaia spacecraft, astronomers can see it […]

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Webb Quest: Mind-blowing mission to the early Universe

Video: 00:48:00 Embark on a mission with ESA astronomers Mark McCaughrean and Giovanna Giardino to learn more about the James Webb Space Telescope and the early Universe. This programme is suitable for primary and secondary students. Join the quest! Find more educational resources, videos and links about astronomy on ESA Education’s Teach with Astronomy webpage […]

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Making a splash in a lava sea

Volcanoes, impact craters, tectonic faults, river channels and a lava sea: a vast amount of information is captured in a relatively small area in this geologically rich new image from ESA’s Mars Express .  To source

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Solar Orbiter catches a second comet by the tail

For the second time in its mission so far, the ESA/NASA Solar Orbiter spacecraft has flown through the tail of a comet. Predicted in advance by astronomers at University College London, UK, the spacecraft collected a wealth of science data that now awaits full analysis. To source

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Space, astronomy and science