In space science labs, which practice regarding the Sun is recommended?

• A. Look directly at the Sun with sunglasses
• B. Do not look directly at the Sun; pinhole viewers are acceptable
• C. Use a telescope without protection
• D. Observe only during total solar eclipses

Answer: (B)

Never look directly at the Sun because its intense light can permanently damage your retina in an instant. To study the Sun safely, use indirect viewing that shows you a quiet image of the Sun rather than squinting into its glare. A pinhole viewer is a simple, safe method: it lets you see the Sun’s image projected onto a screen, so you can observe features like sunspots without putting your eyes at risk. Using a telescope or binoculars without proper solar filters concentrates sunlight and can cause serious eye injury and even equipment damage. Waiting to observe only during total solar eclipses isn’t a reliable safety practice, since you can’t predict when an eclipse will occur and you would still need protection when any part of the Sun is visible. So the best practice is to avoid direct Sun viewing and rely on safe, indirect methods like a pinhole viewer.