Archivi categoria: ESA

Astronomers use cosmic gravity to create a ‘black-hole-scope’

The Integral, Fermi and Swift space observatories have used the magnifying power of a cosmic lens to explore the inner regions of a supermassive black hole.

from ESA Space Science http://ift.tt/1TgOICg

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Counting stars with Gaia

This image, based on housekeeping data from ESA’s Gaia satellite, is no ordinary depiction of the heavens. While the image portrays the outline of our Galaxy, the Milky Way, and of its neighbouring Magellanic Clouds, it was obtained in a rather unusual way.

from ESA Space Science http://ift.tt/1C5jtp8

Comet sinkholes generate jets

A number of the dust jets emerging from Rosetta’s comet can be traced back to active pits that were likely formed by a sudden collapse of the surface. These ‘sinkholes’ are providing a glimpse at the chaotic and diverse interior of the comet.

from ESA Space Science http://ift.tt/1GOnbjG