The surface of the moon consists of a layer of sharp gravel, sand and dust called regolith. Millions of years of meteorite impacts have thrown up pulverized bedrock, and there is no wind and no rain to wear down the corners of the glassy grains. Solar wind consists of charged particles emitted by the sun. The lunar dust can become electrically charged by the solar wind so that the grains repel each other and move across the surface. In the absence of air and water, there thus appears to be a kind of rudimentary electrical "weather" on the moon. Such processes are expected to slowly smooth the moon's craters over time, but they have not yet been properly investigated.
Photo:
Kronholm, Susanne
/
Tekniska museet
The surface of the moon consists of a layer of sharp gravel, sand and dust called regolith. Millions of years of meteorite impacts have thrown up pulverized bedrock, and there is no wind and no rain to wear down the corners of the glassy grains. Solar wind consists of charged particles emitted by the sun. The lunar dust can become electrically charged by the solar wind so that the grains repel each other and move across the surface. In the absence of air and water, there thus appears to be a kind of rudimentary electrical "weather" on the moon. Such processes are expected to slowly smooth the moon's craters over time, but they have not yet been properly investigated.
Photo:
Tekniska museet
The surface of the moon consists of a layer of sharp gravel, sand and dust called regolith. Millions of years of meteorite impacts have thrown up pulverized bedrock, and there is no wind and no rain to wear down the corners of the glassy grains. Solar wind consists of charged particles emitted by the sun. The lunar dust can become electrically charged by the solar wind so that the grains repel each other and move across the surface. In the absence of air and water, there thus appears to be a kind of rudimentary electrical "weather" on the moon. Such processes are expected to slowly smooth the moon's craters over time, but they have not yet been properly investigated.
Photo:
Tekniska museet
The surface of the moon consists of a layer of sharp gravel, sand and dust called regolith. Millions of years of meteorite impacts have thrown up pulverized bedrock, and there is no wind and no rain to wear down the corners of the glassy grains. Solar wind consists of charged particles emitted by the sun. The lunar dust can become electrically charged by the solar wind so that the grains repel each other and move across the surface. In the absence of air and water, there thus appears to be a kind of rudimentary electrical "weather" on the moon. Such processes are expected to slowly smooth the moon's craters over time, but they have not yet been properly investigated.
Photo:
Tekniska museet
The surface of the moon consists of a layer of sharp gravel, sand and dust called regolith. Millions of years of meteorite impacts have thrown up pulverized bedrock, and there is no wind and no rain to wear down the corners of the glassy grains. Solar wind consists of charged particles emitted by the sun. The lunar dust can become electrically charged by the solar wind so that the grains repel each other and move across the surface. In the absence of air and water, there thus appears to be a kind of rudimentary electrical "weather" on the moon. Such processes are expected to slowly smooth the moon's craters over time, but they have not yet been properly investigated.
Photo:
Häll, Peter
/
Tekniska museet
The surface of the moon consists of a layer of sharp gravel, sand and dust called regolith. Millions of years of meteorite impacts have thrown up pulverized bedrock, and there is no wind and no rain to wear down the corners of the glassy grains. Solar wind consists of charged particles emitted by the sun. The lunar dust can become electrically charged by the solar wind so that the grains repel each other and move across the surface. In the absence of air and water, there thus appears to be a kind of rudimentary electrical "weather" on the moon. Such processes are expected to slowly smooth the moon's craters over time, but they have not yet been properly investigated.
Photo:
Häll, Peter
/
Tekniska museet
The surface of the moon consists of a layer of sharp gravel, sand and dust called regolith. Millions of years of meteorite impacts have thrown up pulverized bedrock, and there is no wind and no rain to wear down the corners of the glassy grains. Solar wind consists of charged particles emitted by the sun. The lunar dust can become electrically charged by the solar wind so that the grains repel each other and move across the surface. In the absence of air and water, there thus appears to be a kind of rudimentary electrical "weather" on the moon. Such processes are expected to slowly smooth the moon's craters over time, but they have not yet been properly investigated.
Photo:
Häll, Peter
/
Tekniska museet
