Life on Earth relies upon an astonishingly short list of elements. Carbon, hydrogen, and oxygen compose the essential ...

Scientists discovered microscopic gold forming inside tree needles. Hidden microbes convert dissolved soil ions into solid metal, offering a greener, innovative approach to exploring underground ...

The presents are unwrapped, the cookies are crumbs, and that real Christmas tree will become a fire hazard soon enough. Most ...

The UA has plenty of special features to offer, but one of its more overlooked aspects is its abundant plant life—specifically, that of the Laboratory of Tree-ring Research. UA’s tree-ring lab right ...

Scientists at Washington State University are looking at what goes into that choice, contributing data to research to ...

Trees have special ways to defend themselves against insects, even animals eating their leaves. Learn how trees “talk to each other. Science Trek is available to stream on pbs.org and the free PBS App ...

Two hundred and forty-one years ago, when General George Washington marched back into New York City as British troops were walking out, a volcano erupted in Iceland. For eight months in 1783, Laki ...

Tree rings are not just a great record of a tree’s life, but they can preserve a snapshot of the Earth and beyond at different times. Now Australian scientists analyzing these records have found ...

Science has mixed with holiday magic to safeguard the legacy of a 100-year-old holiday tradition on Fresno’s Christmas Tree ...

Leonardo da Vinci seems first to have noticed that widths of tree rings vary in wet and dry years, but there is a big gap between his discovery and a history of tree rings that chronicles Midwest ...

City trees lead difficult lives. A lot of things are trying to kill them, particularly the trees planted on sidewalks: Tightly compacted soil with high alkaline content makes it harder for them to ...

Although Ceriporia lacerata fungus causes tree wood to rot, it also has a good side. According to a new study, adding the fungus to agricultural soil allows tomatoes to be grown using much less ...