solar wind tagged posts

The moon’s surface may be more than just a dusty, barren landscape. Over billions of years, tiny particles from Earth’s atmosphere have landed in the lunar soil, creating a possible source of life-sustaining substances for future astronauts. But scientists have only recently begun to understand how these particles make the long journey from Earth to the moon and how long the process has been taking place.

New r...

In recent years, NASA’s Parker Solar Probe has given us a close-up look at the sun. Among the probe’s revelations was the presence of numerous kinks, or “switchbacks,” in magnetic field lines in the sun’s outer atmosphere. These switchbacks are thought to form when solar magnetic field lines that point in opposite directions break and then snap together, or “reconnect,” in a new arrangement, leaving telltale zigzag kinks in the reconfigured lines.

In their article published in the Journal of Geophysical Research: Space Physics, E. O. McDougall and M. R...

Noctilucent clouds were once thought to be a fairly modern phenomenon. A team of researchers recently calculated that Earth and the entire solar system may well have passed through two dense interstellar clouds, causing global noctilucent clouds that may have driven an ice age.

The event is thought to have happened 7 million years ago and would have compressed the heliosphere, exposing Earth to the interstellar medium.

Interstellar clouds are vast regions of gas and dust between the stars within galaxies. They are mostly made up of hydrogen along with a little helium and trace elements of heavier elements.

They are a key part of the life cycle of stars, providing the materials for new stars to be formed, and are seeded with elements after stars die...

Physicists led by the University of Iowa have learned how a type of aurora on Mars is formed.

In a new study, the physicists studied discrete aurora, a light-in-the-sky display that occurs mostly during the night in the red planet’s southern hemisphere. While scientists have known about discrete aurora on Mars-which also occur on Earth – they did not know how they formed...