Sun and other stars, like Sirius are able to produce light of their own.
Only a small fraction of space objects produce their own light. The primary objects that do are stars, which generate light through nuclear fusion in their cores. Other celestial bodies like planets and moons do not emit their own light but reflect the light of stars. Additionally, some phenomena like supernovae and certain types of nebulae can produce their own light temporarily.
Objects in space that produce their own light are known as luminous objects. Some examples include stars, such as our Sun, which emit light through the process of nuclear fusion, and hot planets like Jupiter, which reflect and emit light due to their internal heat. Other examples include galaxies, supernovae, and nebulae that emit light due to various astronomical processes.
Cities can be seen from space.
Some light sources in space include stars (like our sun), galaxies, nebulae, and objects like black holes that emit radiation as they interact with surrounding matter. Additionally, phenomena such as supernovae and quasars can also produce intense bursts of light.
The primary source of light for objects in space is usually stars, which emit light and other forms of electromagnetic radiation through nuclear fusion in their cores. Some objects in space can also reflect light from nearby stars or other sources, contributing to their overall brightness.
Objects in space that produce their own light are known as luminous objects. Some examples include stars, such as our Sun, which emit light through the process of nuclear fusion, and hot planets like Jupiter, which reflect and emit light due to their internal heat. Other examples include galaxies, supernovae, and nebulae that emit light due to various astronomical processes.
Cities can be seen from space.
Objects that produce or emit light are called luminous objects. These objects generate their own light through a process such as incandescence or bioluminescence. Examples include the sun, light bulbs, and fireflies.
Illuminated objects
Because light can't directly reach the objects, or reflect well off the inside walls of the box. So not enough light bounces off the walls, then bounces off the objects, and then goes to your eyes.
a lightbulb
No, objects that produce light do not have to be hot. Some objects can produce light without being hot, like glow-in-the-dark materials or chemiluminescent compounds. The light emitted by these objects is due to different physical processes than traditional thermal emission.
Luminous objects.
from the sun
You see objects that do not produce light because they reflect light that comes from a light source, such as the sun or a lamp. This reflected light enters your eyes and is processed by your brain to form an image of the object.
Hubble
Fluorescent or incandescent.