Beyond April 19, additional fee-free days are scheduled for later in the year, including June 19 (Juneteenth), August 4 ...

A bold geochemical model reveals that TOI‑270 d, a sub‑Neptune 73 light‑years away, is likely a giant rocky world cloaked in ...

An international research team has developed the world's first 30-meter resolution dataset to track changes in land ...

A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...

From dormant volcanoes and salt pans to urban forests and library gardens, these are the places we go for peace and quiet.