European Space Agency Flickr Update

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Moving heart of the Crab Nebula
08-07-2016 11:50 AM CEST

europeanspaceagency posted a photo:

Moving heart of the Crab Nebula

This ESA/NASA Hubble Space Telescope image features the moving heart of the Crab Nebula.

While many other images of the famous Crab Nebula have focused on the filaments in the outer part of the nebula, this image shows the very heart of the Crab Nebula including the central neutron star — it is the rightmost of the two bright stars near the centre of this image.

The rapid motion of the material nearest to the central star is revealed by the subtle rainbow of colours in this time-lapse image, the rainbow effect being due to the movement of material over the time between one image and another.

Read more here.

Credit: ESA/NASA

Malaspina Glacier
08-07-2016 11:46 AM CEST

europeanspaceagency posted a photo:

Malaspina Glacier

The Sentinel-2A satellite takes us over southeastern Alaska to the Malaspina Glacier.

The climate and topography of this area over the last 12.5 million years have been favourable for glaciers. During the Ice Age, a vast ice sheet covered this spot. When temperatures rose, an interglacial period began.

The coastal mountains and the maritime climate of this area provide the perfect setting for glaciation: some of the world’s longest and most spectacular glaciers are found here.

Malaspina is a piedmont glacier – meaning that ice flows down a steep valley and spills out onto a relatively flat plain. It is the largest of its kind, with an area of about 3900 sq km.

In this false-colour image, red depicts vegetated areas while purple shows rock. The wavy purple lines around the lower half of the glacier are rock, soil and other debris that have been deposited by the glacier – called moraines.

Satellite data show that the elevation of Malaspina has dropped over the past decades, and this ice loss has made a significant contribution to sea-level rise.

This image, also featured on the Earth from Space video programme, was acquired on 8 March 2016. The low Sun level at Alaska’s high latitudes during this season is evident by the shadows cast north by the Elias Mountains.

Credit: ESA

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