New discoveries Mysterious Activity Detected in Galaxy M83

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Black hole hidden within its own exhaust

Almost every galaxy in the Universe has a massive black hole in its core. With its gravity, the black hole sucks in material from its surroundings. It gobbles up clouds of gas and dust, and maybe even complete stars. The black hole’s ‘food’ first piles up in a thin,...

Surprise: ALMA finds lots of gas around heftier stars

Morning fog disappears when the sun rises. Can you imagine what happens when the sun would be much hotter and brighter? The fog will disappear much sooner, of course. Astronomers believed that the same would be true for newborn stars. They are often surrounded by disks of dust and...

Suprise: ALMA got to see the line where snow starts around a young star

What happens if you throw little sticks or dry pine needles in a camp fire? The flames get brighther and the air gets warmer, right? Something similiar happens with new born stars! A few million years after they are born, most stars are surrounded by a disk of swirling...

Galaxy reveals its gaseous content in two ways

Stars are born from large clouds of cold gas. It’s called molecular gas, since it is composed not of single atoms, but of molecules like H2 (two hydrogen atoms strung together) and carbon monoxide (CO, a molecule consisting of one atom of carbon and one of oxygen). Molecular hydrogen...

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