Because it could be sign of life.
Scientists often look for the molecule water when investigating the possibility of life on other planets. Water is essential for all known forms of life and its presence can indicate the potential for habitability on other planets.
Scientists look for molecules such as water, methane, and organic compounds like amino acids or nucleotides when investigating the possibility of life on other planets. These molecules are considered essential for life as we know it.
They are sending robots to explore other planets where they conduct evperiment to see if the planet can support life.
Scientists are still bringing stuff back to earth from other planets to look at but, from the information we have now we say that only 1 planet has life. That planet is Earth.
Space probes help scientists study other planets by collecting data such as images, measurements, and samples that provide valuable information about the planet's atmosphere, surface, and composition. They can also help scientists understand planetary processes, such as geological activity and weather patterns, by observing the planet over an extended period of time. Additionally, space probes can provide insights into the potential for past or present life on other planets.
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Scientists use telescopes to observe and study objects in the sky, such as stars, planets, galaxies, and other celestial bodies. Telescopes allow scientists to gather important data, study the properties and behavior of these objects, and make new discoveries about the universe.
Scientists look to the seismic waves to reveal the Earth's interior.
A star is a ball of plasma : life as we know it cannot exist there.
Scientists used to wonder; are planets rare, or are they common? Arguments went both ways. But over the past 10 years or so, we have discovered over 300 planets orbiting other stars. With the rapid improvement in space-based telescopes and better image processing software, it begins to look like planets, and planetary systems, may be the norm; that single stars without planets may be the unusual case.
Signs of life on other planets could include the presence of liquid water, the detection of gases like oxygen and methane in an atmosphere, the existence of complex organic molecules, and evidence of seasonal changes or geological activity that could support living organisms. Scientists also study the composition of planetary surfaces and look for potential habitats where life could thrive.
Scientists use technology to have another way to look at things.You use technology to look at planets,cells,etc.