Latest Magnetopause Stories
ESA’s quartet of satellites studying Earth’s magnetosphere, Cluster, has discovered that our protective magnetic bubble lets the solar wind in under a wider range of conditions than previously believed.
MESSENGER scientists have concluded that waves driven by the Kelvin-Helmholtz (KH) instability play a key role in driving Mercury's magnetosphere.
European scientists have used observations from ESA's Cluster and Venus Express spacecraft to improve models of the interaction of Earth and Venus with the solar wind.
Imagine floating 35,000 miles above the sunny side of Earth.
The American Geophysical Union has selected a research paper detailing observations of Mercuryâ€™s magnetosphere during the probeâ€™s third flyby as a â€œResearch Highlightâ€ in todayâ€™s issue of Eos, the AGUâ€™s weekly online and print newspaper.
Scientists have discovered that the Earth's magnetic field over 3 billion years ago was only half as strong as it is today, and that this weakness, coupled with a strong wind of energetic particles from the young Sun, likely stripped water from the early Earth's atmosphere.
The Earth's magnetic field protects our planet from most of the permanent flow of particles from the solar wind.
On September 29, the MESSENGER spacecraft will pass by Mercury for the third time, flying 141.7 miles above the planetâ€™s rocky surface for a final gravity assist that will enable it to enter orbit about Mercury in 2011.
As the closest planet to the sun, Mercury is scorching hot, with daytime temperatures of more than 800 degrees Fahrenheit (approximately 450 degrees Celsius).
Swooping through space are solitary waves, which in theory do not change form or lose energy as they go along. These waves, which exist on Earth in different media, have been detected and explained for the first time in space thanks to Cluster data.
Heliopause -- The heliopause is the boundary where our Sun's solar wind is stopped by the interstellar medium. The solar wind blows a "bubble" in the interstellar medium (the rareified hydrogen and helium gas that permeates the galaxy). The point where the solar wind's strength is no longer great enough to push back the interstellar medium is known as the heliopause, and is often considered to be the outer "border" of the solar system. The distance to the heliopause is not precisely...