galaxies
An Active Galaxy That Erupts Predictably Every 114 Days Or So
Computers are known for their ability to spot patterns. It’s what they are good at, and over the last 50+…
The Universe in Formation. Hubble Sees 6 Examples of Merging Galaxies
Audio narration by the author is available above 10 billion years ago, galaxies of the Universe were ablaze with the…
This is the Fireworks Galaxy. It’s had ten Supernovae in the Last Century Alone
Say hello to NGC 6946, otherwise known as the Fireworks Galaxy. This little galaxy is the most prolific producer of…
Astronomers find a galaxy that had its dark matter siphoned away
The galaxy NGC 1052-DF4 surprised scientists by having almost no dark matter to complement its stellar population. Recently a team…
The family tree of the Milky Way. The mergers that gave us the galaxy we see today
Galaxies build themselves up slowly over time by cannibalizing their neighbors. Using an advanced suite of computer simulations, researchers have…
New Horizons Saw the Universe With Even Less Light Pollution than Hubble’s View
A new study based on New Horizons data has conducted the most accurate measurements of the Universe's background light to…
Galaxies Grew Quickly and Early On in the Universe
The behaviour of galaxies in the early Universe attracts a lot of attention from researchers. In fact, everything about the…
A Galaxy has been Found That’s as Bright as a Quasar… But it’s Not a Quasar
Astronomers have found a new type of galaxy that is very old, very distant and very bright in ultraviolet light.…
Gaia has Already Given Us 5 New Insights Into the Milky Way
The European Space Agency launched the Gaia mission in 2013. The mission's overall goal was to discover the history of…
Small Amounts of Dark Matter are Creating Much Stronger Gravitational Distortions than Anyone Expected to See
Dark matter is much more clumpy than we thought, which means some dark matter might be very cold.