New observations from ALMA show a galaxy in the making.
Along the Line
The idea of long-slit spectroscopy is to only observe the spectrum of an object along a narrow line. From this we can determine the motion of stars in the galaxy.
Five by Five
Many supermassive black holes are surrounded by gas and dust, and so aren’t easily observed. But new observations from NuSTAR has peered through the dust in five galaxies.
Distant Carbon
On a dusty day, you can’t see the smog. At least that’s how it is for galaxies, which is why the detection of carbon in early galaxies is such a big deal.
Amassing Evidence
How do we determine the mass of our Milky Way galaxy? One way is to look at the trails of stars lost by globular clusters.
To Map the Invisible Sky
How do we know the shape of the Milky Way galaxy, when much of it is obscured by gas and dust?
Young and Brilliant
The most luminous galaxy ever discovered shines brilliantly in infrared. This is likely due to a quickly forming supermassive black hole in its center.
A Deeper Sky
The James Webb space telescope has a mission to see deeper into the sky than ever before.
The Dark Side
New observations of colliding galaxies shows that dark matter interacts with itself, and may do it through a “dark force.”