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Overlapping Galaxies

This is an image (from Astronomy Picture of the Dayfor 17/11/21) of two galaxies overlapping.

The front one’s spiral arms show up almost as shadows against the further one but overall tThe two together look like a sketch of a bird in flight.

Galaxies NGC3314a and NGC 3314b

A Solar Filament

The Sun is an unbelievably violent object. Not surprising given its temperature and the countless nuclear reactions taking place in its interior.

Sometimes this violence manifests itself in eruptions like the filament pictured below, which rose from the Sun last month.

(From You Tube via Astronomy Picture of the Day for 8/11/21.)

Ganymede and Jupiter Flyby

From You Tube via Astronomy Picture of the Day for 11/10/21.

An animation of photos taken recently by the Juno spacecraft:-

Galaxy M74

From NASA via Astronomy Picture of the Day for 13/8/21.

A beautiful spiral galaxy. The image shows emissions from hydrogen atoms, emphasising the reddish glow of the parts of the galaxy where stars are forming.

Galaxy M74

The galaxy looks slightly different in visible light.

Ring Galaxy AM 0644-741

This lovely picture comes from NASA via the Hubble Telescope and Astronomy Picture of the Day for 28/7/21. The galaxy’s distorted shape is due to it having interacted with another galaxy (top right) which passed through it.

Ring Galaxy AM 0644-741

Andromeda in Ultra-violet

This is from NASA via Astronomy Picture of the Day for 18/7/21.

The Andromeda Galaxy as seen in ultra-violet light. Compared to visible light images it really picks out the spiral arms but makes them look more like rings.

Andromeda in u-v

A Celestial Necklace

From Astronomy Picture of the Day for 18/5/21.

This beautiful celestial apparition is known as the Necklace Nebula. It is a so-called planetary nebula. These are formed by gases thrown off by stars nearing the end of their lives. The Nebula Necklace’s “Diamonds” are knots of glowing gas.

The Necklace Nebula

Crescent of Earth

Only 24 people have ever had the chance to see a view like this – or photograph it. The 24 astronauts of the Apollo Programme who made it to the Moon and back.

From Astronomy Picture of the Day for 29/4/21, a digitally restored photograph of the whole of planet Earth from its nightside, the last picture of its kind so far to be taken by human hands.

Crescent of Earth

Star Shredding Animation

From You Tube via Astronomy Picture of the Day for 27/4/21.

An animation of a star being shredded by a black hole.

Ingenuity’s First Flight.

From You Tube via Astronomy Picture of the Day for 20/4/21.

Ingenuity’s first (short) flight through the Martian atmosphere as seen from the Perseverance rover.

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