no, they just reflect light
Venus
venus
None of the planets in the Solar system radiate their own light, so they are all as bright (luminous) as each other, which is, not at all. Any light we see from planets is reflected light that came from the Sun (as opposed to stars who generate their own light). the planet with the greatest apparent magnitude (that is, how bright the body appears to an observer on the earth looking up at the sky) is Venus.
Venus is the brightest because it is very close to the Earth. Venus has a very reflective atmosphere that reflects light.
cos your eyes haven't adjusted to the bright light
yes
Venus
bright light bright light
Source light is light coming directly from a light source/emitter (i.e. a light bulb, the sun, stars, etc.). Reflected light is light coming indirectly from the light source/emitter. That could be reflected, refracted light, etc.
Venus is the brightest star. It is also the hottest planet it reflects a lot of light from the sun and we can see it as a bright dot in the sky.
The Earth is not the closest planet to the sun and it is generally agreed it gets enough light. Neptune however gets a negligible amount of light from the sun, which at Neptune's distance just looks like a bright star.
The light was so bright that I had to cover my eyes. As the cold room heaved and shook with the dreariness of the icy land, the frigid, sullen, famished and weary peasants huddled around the bright kerosene lantern. That child seems particularly bright.
Source light is light coming directly from a light source/emitter (i.e. a light bulb, the sun, stars, etc.). Reflected light is light coming indirectly from the light source/emitter. That could be reflected, refracted light, etc.
In fact, both planets are dark. The only reason Venus looks bright to us is not because it has it's own light, but because it reflects light from the Sun. It's the same thing for Mercury.So, both Mercury and Venus appear bright to us.
venus
in bright light the pupil shrinks
a light is bright coz the world is alive if a light is not very bright its coz the world will soon end