galaxy articles - Page: 2
Is a spiral galaxy gas or dust?
A spiral galaxy is fundamentally a mixture of celestial components, not a simple choice between being only gas or only d...
Are all galaxies moving apart?
The simple answer to whether all galaxies are moving apart is a definitive no, although the vast majority are receding f...
Are there any dead galaxies?
The universe is filled with magnificent, churning cosmic factories—galaxies actively forming billions of new stars—but a...
How does star formation differ in elliptical and spiral galaxies?
The character of a galaxy, from its shape to the color of its light, is deeply tied to its history of star formation. Wh...
Are red galaxies further away?
The light arriving at our telescopes from far-off galaxies carries a crucial message about its origin, primarily concern...
Do red galaxies exist?
The simple confirmation is that yes, red galaxies absolutely exist, and they have captivated astronomers for decades, le...
What are the properties of elliptical galaxies?
Elliptical galaxies represent a major class of stellar systems, often standing out due to their smooth, featureless ligh...
What is the main reason for the low star formation in elliptical galaxies?
The silent grandeur of **elliptical galaxies** often belies a long and dramatic history. Unlike their spiral cousins, wh...
How fast is our Galaxy cluster moving?
The cosmos is a place defined by motion. For us living on Earth, accustomed to the comforting stability of our surroundi...
What kind of evidence suggests that there is not much star formation happening in elliptical galaxies?
The visual contrast between different galaxy types immediately suggests differences in their current activity levels. Sp...
Can elliptical galaxies be spherical?
The diversity within the universe of galaxies is staggering, ranging from the grand, pinwheeling structures of spirals t...
Are elliptical galaxies disc-shaped?
The visual representation of many galaxies, particularly our own Milky Way, immediately brings to mind a flat, spinning ...
How many galaxies are there in the cosmos universe?
Trying to pin down the exact number of galaxies scattered across the cosmos is one of astronomy’s most humbling exercise...
What type of galaxies have gas and dust in them?
The makeup of a galaxy—specifically, the presence or absence of the raw materials for new stars—is fundamentally tied to...
Are most galaxies red or blue-shifted?
The shift in the light emanating from distant cosmic objects tells a profound story about the structure and motion of th...