What is planet ? yashwanth blog.

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  A planet is a large object such as Venus or Earth that orbits a star. Planets are smaller than stars, and they do not produce light. Jupiter is the biggest planet in the Solar System. Planets are shaped like a slightly squashed ball (called a spheroid). Objects that orbit planets are called satellites. There are more planets than stars in our galaxy. The current count orbiting our star: eight. The inner, rocky planets are Mercury, Venus, Earth and Mars. The earth has conditions that support life . It is neither too hot nor too cold. It has both water and air, which are both indispensable for life . Presence of oxygen in the air in an appropriate proportion supports life .
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What is comb jelly? yashwanth blog.

 


A comb jelly. The evolutionary history of the comb jelly has revealed surprising clues about Earth's first animal.Despite going extinct over 400 million years ago, ancient comb jellies are still blowing scientists away. Long thought of as entirely soft-bodied creatures — like their modern counterparts — these predatory marine animals may have had hard, skeleton-like parts, according to a study published in Science Advances today.All comb jellies are meat-eaters. They swim in surface waters using sticky tentacles to catch tiny creatures in the soup of plankton that the sea supports. Most comb jelly individuals are both male and female. ... Unlike other jellyfish, comb jellies do not sting people so they are safe to swim with and to handle.

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