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Tag: sees

  • Proba-2 sees the Moon eclipse the Sun ☀️ #shorts

    Proba-2 sees the Moon eclipse the Sun ☀️ #shorts

    ESA’s Proba-2 captured two partial solar eclipses on 8 April 2024.

    A solar eclipse occurs when the Moon passes between Earth and the Sun, totally or partially blocking the Sun from Earth’s point of view. On 8 April, lucky viewers across North America witnessed the Moon blocking out the Sun in its entirety for a few minutes, while those north and south of the ‘total eclipse path’ witnessed a partial eclipse.

    Throughout the eclipse period, the Moon crossed Proba-2’s field of view twice, appearing as a partial solar eclipse. The satellite flies around 700 km above Earth’s surface in what is called a Sun-synchronous orbit, each orbit lasting around 100 minutes.

    The video was produced from images taken by Proba-2’s SWAP telescope, which observes the Sun in extreme ultraviolet light. At these wavelengths, the turbulent nature of the Sun’s surface and corona – the Sun’s extended atmosphere – become visible. These measurements have to be made from space, because Earth’s atmosphere doesn’t allow such short wavelengths of light to pass through.

    A total solar eclipse provides a unique opportunity to see the Sun’s corona from Earth’s surface, using visible light. As the Moon blocks most of the Sun’s bright light, the faint corona can be discerned. By comparing the SWAP ultraviolet images to what is seen by (visible light) telescopes on Earth, we can learn about the temperature and behaviour of different structures in the corona.

    Other solar missions also made the most of the unique measurement opportunities provided by the eclipse. For example, ESA’s Solar Orbiter was positioned close to the Sun and at a 90-degree angle from Earth’s view throughout the eclipse. This allowed it to complement Earth-based observations by monitoring the Sun’s corona side-on, including any solar eruptions pointing in Earth’s direction.

    Credit: ESA/Royal Observatory of Belgium

    #ESA #Eclipse #Proba-2

  • Hubble sees supergiant star Betelgeuse recovering after blowing its top #shorts

    Hubble sees supergiant star Betelgeuse recovering after blowing its top #shorts

    The first clue came when the star mysteriously darkened in late 2019. An immense cloud of obscuring dust formed from the ejected surface as it cooled. Astronomers have now pieced together a scenario for the upheaval. And the star is still slowly recovering; the photosphere is rebuilding itself. And the interior is reverberating like a bell that has been hit with a sledgehammer, disrupting the star’s normal cycle. This doesn’t mean the monster star is going to explode any time soon, but the late-life convulsions may continue to amaze astronomers.

    Learn more: https://esahubble.org/images/opo22037a/

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  • Webb sees Jupiter #shorts

    Webb sees Jupiter #shorts

    Webb’s Jupiter observations will give scientists even more clues to Jupiter’s inner life since with giant storms, powerful winds, aurorae, and extreme temperature and pressure conditions, the planet has a lot going on.

    Download these images: https://www.esa.int/ESA_Multimedia/Images/2022/08/Jupiter_showcases_aurorae_hazes_NIRCam_widefield_view

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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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  • Solar Orbiter sees ‘campfires’ on the Sun

    Solar Orbiter sees ‘campfires’ on the Sun

    The first images from ESA’s Solar Orbiter, captured around the spacecraft’s first close pass of the Sun, some 77 million kilometres from its surface, are already exceeding expectations revealing interesting new phenomena on our parent star.

    This animation shows a series of close-up views captured by the Extreme Ultraviolet Imager (EUI) at wavelengths of 17 nanometers, showing the upper atmosphere of the Sun, or corona, with a temperature of around 1 million degrees.

    These images reveal a multitude of small flaring loops, erupting bright spots and dark, moving fibrils. A ubiquitous feature of the solar surface, uncovered for the first time by these images, have been called ‘campfires’. They are omnipresent minuature eruptions that could be contributing to the high temperatures of the solar corona and the origin of the solar wind.

    Captured on 30 May 2020, when Solar Orbiter was roughly halfway between the Earth and the Sun, these are the closest views of the Sun ever taken, allowing EUI to see features in the solar corona of only 400 km across. As the mission continues, Solar Orbiter will go closer to the Sun and this will increase the instrument’s resolving power by a factor of two at closest approach.

    The colour on this image has been artificially added because the original wavelength detected by the instrument is invisible to the human eye.

    The circle in the lower left corner indicates the size of Earth for scale.

    The extended grey shape visible at times moving across the field (00:00-00:25; 01:00-01:28; 01:50-02:00; 02:52-03:27) is not a solar feature but is caused by a sensor artefact.

    Solar Orbiter is a space mission of international collaboration between ESA and NASA.

    Learn more: https://bit.ly/SolarOrbitersFirstImages

    Credit: Solar Orbiter/EUI Team (ESA & NASA); CSL, IAS, MPS, PMOD/WRC, ROB, UCL/MSSL

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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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  • NASA Sees Earth, Our Unique Home

    NASA Sees Earth, Our Unique Home

    Of all the planets NASA has explored, none have matched the dynamic complexity of our own. Earth is a very special place. From the vantage point of space, the perspective of sky and sea, and all across the land, we study our planet not only to learn about it, but also to protect it.

  • Satellite sees Russian meteor explosion from space

    Satellite sees Russian meteor explosion from space

    The meteor that exploded over the Urals of central Russia was seen by Eumetsat’s Meteosat-9, at the edge of the satellite view. Hundreds of people were reportedly injured as the meteor’s massive sonic boom caused widespread damage.

    Credit: Eumetsat

  • Proba-2 sees three partial solar eclipses

    Proba-2 sees three partial solar eclipses

    The total solar eclipse of 13-14 November 2012 was only visible to ground-based observers situated in northern Australia, while ESA’s Sun-watching satellite Proba-2 enjoyed three partial eclipses from its viewpoint in space. The constant change in viewing angle of Proba-2 as it orbits the Earth meant that the satellite passed through the Moon’s shadow a total of three times during the eclipse event. The video was produced from images taken by Proba-2’s SWAP imager, which snaps the Sun in ultraviolet light to reveal stormy active regions on the solar disc.

    The apparent noise in the movie results from high energy particles hitting Proba-2’s electronics as the spacecraft passes through the South Atlantic Anomaly. The dimming in the movie is an effect as part of the satellite’s orbit passes through the shadow of the Earth.

    Read full article here: http://www.esa.int/esaSC/SEMFYC72Q8H_index_0.html

  • Satellite Sees Global View of Sandy’s Life to Landfall

    Satellite Sees Global View of Sandy’s Life to Landfall

    An animation of satellite observations from Oct. 21-30, 2012, shows the birth of Tropical Storm Sandy in the Caribbean Sea, the intensification and movement of Sandy in the Atlantic Ocean along the U.S. East Coast, and the landfall of Hurricane Sandy in New Jersey on Oct. 29. This visualization was created by the NASA GOES Project at NASA Goddard Space Flight Center, Greenbelt, Md., using observations from NOAA’s GOES-13 and GOES-15 satellites.

  • NASA’s MRO Sees Possible Martian Water Flows

    NASA’s MRO Sees Possible Martian Water Flows

    Observations from NASA’s Mars Reconnaissance Orbiter, MRO, have revealed possible flowing water during the warmest months on Mars. Scientists discuss the findings at a NASA Headquarters news briefing held August 4, 2011.
    Dark, finger-like features appear and extend down some Martian slopes during late spring through summer, fade in winter, and return during the next spring. Repeated observations have tracked the seasonal changes in these recurring features on several steep slopes in the middle latitudes of Mars’ southern hemisphere.