New discoveries ALMA discovers moons in the making

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Young Galaxies Are Surrounded by Huge ‘Atmospheres’

Planet Earth is surrounded by an atmosphere – a thin layer of gas. Some other planets, and most stars, also have atmospheres. In many cases, they’re much more extended than the atmosphere of Earth. ALMA has now discovered two young galaxies that really take the biscuit: their ‘atmospheres’ extend...

‘Hole in the ALMA sky’ is produced by hot cluster gas

Do you see the large ‘hole’ in this ALMA image? It looks as if someone cut a circular hole in a blue veil, with a large cluster of galaxies right behind the hole. But appearances can be deceiving. In fact, the ‘blue veil’ originates behind the galaxy cluster. It’s...

ALMA witness stellar growth spurt

Have you ever experienced a growth spurt? Three times within a year or so, you need new T-shirts or new shoes, just because you’re growing so fast. It happens with teenagers, but also with baby stars. By comparing new ALMA observations with older measurements from another observatory, astronomers have...

ALMA looks over the fence to Milky Way’s light-weight neighbor

Suppose you live in a very big house, with lots of families, each one with many children. Every month or so, a new baby is born, so you know all about it. You wonder about childbirth in other houses. But the nearest big house is many miles away, and...

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