Question

1. written response give two pieces of evidence that scientists use to learn about stars besides just looking at them with the naked eye.

Explanation:

Analyze electromagnetic radiation from stars

Scientists analyze different wavelengths of light (such as X-rays, ultraviolet, infrared, and radio waves) using telescopes equipped with specialized detectors to study stellar properties.

Analyze stellar spectra

Scientists use spectroscopy to split starlight into its component wavelengths, creating spectral lines that reveal the chemical composition, temperature, and motion of the stars.

Answer:

1. Electromagnetic Radiation (Multi-wavelength Astronomy): Scientists collect and analyze non-visible light (such as radio waves, infrared, ultraviolet, and X-rays) using space-based and ground-based telescopes to study stellar structures and temperatures.
2. Stellar Spectroscopy: Scientists split starlight into a spectrum to analyze spectral lines, which reveals the chemical composition, temperature, and radial velocity of stars.