Are the Vedas scientifically accurate?

No. Vedas were never meant to be a science textbook. They contain no quantum physics, no relativity, no Higgs boson or anything else it is claimed to have. Unsurprisingly, this question has turned out to be an encyclopedia of pseudoscience.

Does Hinduism believe in Vedas?

Hindus believe that the Vedas transcend all time and don’t have a beginning or an end. The Upanishads, the Bhagavad Gita, 18 Puranas, Ramayana and Mahabharata are also considered important texts in Hinduism.

What are the main features of the Vedas?

The Vedas are not a textbook of science neither are they the words of a perfect God revealing his omniscience to his chosen humans. They are the poetic inspiration or 350 + Rishis or poets. DHARMA — living the good life, ethics, morals, codes and maps of best practice in human conduct.

Do you prefer the Vedas or the Qur’an?

Yes ,of course the VEDAS have a lot of scientific info packed within it. QURAN also has some interesting scientific facts .But when it comes to the timeline race ,the VEDAS seem to predate QURAN and also provides with a very large amount of spiritual and scientific knowledge comparatively.

What are some scientific facts mentioned in Hindu scriptures?

There can be many scientific facts which are in Hindu scriptures and here are few concepts described in relation with modern scientific discoveries. (What I mean is following concepts can be derived after reading those quoted verses): Vaishesika Sutras discuss about Gravity which I discuss in my answer here.

What is the meaning of the Rainbow in the Vedas?

The verse is as follow. Meaning: The multi colored rays of the Sun, being dispersed in a cloudy sky, are seen in the form of a bow, which is called the rainbow. Even in Vedas 7 colors of light is represented by 7 horses of God Sun which was shown much later.