The earliest scientists first observed the waves that earthquakes produce before they could accurately describe the nature of earthquakes or their fundamental causes, as discussed in Lessons 1–5.

Sally Warner has received funding from the National Science Foundation and the Office of Naval Research. On Jan. 15, 2022, the Hunga Tonga-Hunga Ha’apai volcano in Tonga erupted, sending a tsunami ...

This black hole really knows how to kick back. Scientists recently observed two black holes that united into one, and in the process got a “kick” that flung the newly formed black hole away at high ...

If the Sun were to spontaneously cease emitting light, we wouldn't know about it for about 8 minutes and 20 seconds. The light that's arriving here on Earth, right at this very moment, was emitted ...

A flash of light hits a simple iron crystal. In the space of a trillionth of a second, its magnetic behavior shifts, as if ...