Galàxies

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ESA
NASA
Astro Sabadell

It’s difficult to comprehend the size and sheer power of our Sun, a churning ball of hot gas 4.6 billion years old and 1.3 million times larger than Earth, which emits solar wind — the constant stream of electrons, protons and atomic particles — and routinely lashes out with Coronal Mass Ejections (CMEs), outbursts of colossal clouds of solar plasma flung into space.

The most extreme events, arrivals of fast CMEs or high-speed solar-wind streams, disturb our protective magnetic shield, creating geomagnetic storms at Earth.

ExoMars software passes ESA Mars Yard driving test

Navigation software destined for the ExoMars 2020 mission to the Red Planet has passed a rover-based driving test at ESA’s ‘Mars Yard’.

How much do European citizens know about space?

Europeans are undeniably interested in space activities, and the idea of pooling resources between European countries is considered important unanimously by European citizens: just two of the fascinating findings from a recent survey of public perceptions of issues related to space.

Team of telescopes finds X-ray engine inside mysterious supernova

ESA’s high-energy space telescopes Integral and XMM-Newton have helped to find a source of powerful X-rays at the centre of an unprecedentedly bright and rapidly evolving stellar explosion that suddenly appeared in the sky earlier this year.

XMM-Newton captures final cries of star shredded by black hole

Astronomers using ESA's XMM-Newton space observatory have studied a black hole devouring a star and discovered an exceptionally bright and stable signal that allowed them to determine the black hole’s spin rate.

Cabin Under the Stars

Gocka's, a family nickname for the mountain cabin,

IC 342: The Hidden Galaxy

The Heart and Soul Nebulas

Is the heart and soul of our Galaxy located in

Meteor and Milky Way over the Alps

Now this was a view with a thrill.

Tycho Supernova Remnant in X-ray

What star created this huge puffball?

Cometa i telescopi

L'Aleix Roig ens envia la següent foto. Ens ho explica. "Imatge del pas del cometa 46P/Wirtanen aquesta matinada sobre el campanar de l’església de la vila vermella (Prades). Ben visible amb prismàtics ocupant una àrea major a una Lluna plena.

Detalls de la imatge: Sony A7S, objectiu Sony 24-240mm a f/5, montura StarAdventurer de Skywatcher, exposició 25” a 3200ISO.

Amb el pas dels dies es va aproximant al seu periheli que coincidirà (aproximadament) amb el pas pel costat de les Plèiades, sense dubte una imatge que no ens podem perdre! Prepareu els equips."

Més astrofotografies a la Galeria d'astroimatges

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