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Because Mercury or Venus is in other side of the sun , or just simply when you are looking at the sun, without any filters, you burn your eyes.

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13y ago

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What planets are seen in phases like the moon?

Both Mercury and Venus, being closer to the sun than us, will show phases. When Venus is at is brightest it is generally just a bit over half full. If you were on Mars, you would note phases on earth.


Does Venus have graphite?

No, planet Venus does not have graphite. Venus is really made from a ton of clouds. This is why we cannot see it from planet Earth.


How many moons do mercury venus earth and mars have?

Mercury 0 Venus 0 Earth: 1 Moon (luna) Mars: 2 (Deimos, Phobos) See related link


Why can you see Mercury Venus Mars Jupiter and Saturn?

You can see them because the Sun's light shines on them and we see the part that is lit up.


Does Venus have sun?

Yes. Venus has the same sun that we do, only it is closer. You cannot see the sun from the surface of Venus due to thick clouds.


Why can you see the surface of the venus?

You cannot, because of the permanent cloud cover.


Why could ancient observers only see five of the planets?

Ancient observers could only see five of the planets (Mercury, Venus, Mars, Jupiter, and Saturn) with the naked eye because these planets are bright enough to be visible without the aid of telescopes. The other planets in our solar system are either too distant, too dim, or too close to the Sun, making them harder to observe without optical aids.


Why cannot scientists see the surface of venus?

You cannot, because of the permanet cloud covering and the atmosher is so thick


Which is closer to the sun mercury or Venus?

For most of Venus's nearly circular orbit, Mercury is closer to it than Earth. But when Venus and Earth are on the same side of the Sun, Earth can be closer. And the distances between the planets are constantly changing. There are times when Mercury and Earth are closer than either is to Venus. * (see the related link below) The average distance of each of these planets from the Sun: - Mercury: 57,909,000 km - Venus: 108,200,000 km - Earth: 149,600,000 km So, when they do happen to line up on the same side of the Sun, the distance between Mercury and Venus will average about 50.3 million kilometers, and the distance between Venus and the Earth will average 41.4 million kilometers. But this is only the case for less than 35% of the Venusian year. The distance between Mercury and Venus can vary from just 37.7 million to as much as 178.7 million kilometers. The distance between Earth and Venus can vary from 39.2 million to as much as 256 million kilometers.


If you were looking at Venus and Mars through a telescope which surface would be easier to see?

Mars


Is venus a rockey planet or gas giant?

A gas giant as we cannot see the surface.


What are some of the objets you can see in the night sky that you can't see during the day?

You will not see Mercury or Venus at night. You will, at times, see either of them during the twilight hours.