Walter Reeves answers question from AJC readers, ranging from the universally fatal rose rosette to spider silk stretching from tree to tree.

Learn the signs of rose rosette virus in Knock Out roses, why there's no cure, and when to remove plants and replant safely.

This stunning portrait of a star-forming nebula is a throwback to the birth of our own sun, 4.6 billion years ago. When you purchase through links on our site, we may earn an affiliate commission.