- published: 25 Jan 2014
- views: 46186
The heliosphere is a bubble of charged particles in the space surrounding the Solar System, "blown" into the interstellar medium (the hydrogen and helium gas that permeates the galaxy) by the solar wind. Although electrically neutral atoms from interstellar volume can penetrate this bubble, virtually all of the material in the heliosphere emanates from the Sun itself.
For the first ten billion kilometers of its radius, the solar wind travels at over 1 000 000 km/h. As it begins to interact with the interstellar medium, it slows down before finally ceasing altogether. The point where the solar wind begins to slow is called the termination shock; then the solar wind continues to slow as it passes through the heliosheath; then the point where the interstellar medium and solar wind pressures balance is called the heliopause; the point where the interstellar medium, traveling in the opposite direction, begins to slow as it collides with the heliosphere is the bow shock. However, data from the Interstellar Boundary Explorer suggests that a bow shock doesn't exist because the velocity of the Sun through the interstellar medium is too low for the shock to form.
How Far Away Is It - 04 - The Heliosphere (1080p)
Saved by the Heliosphere
Voyager at the edge of the Heliosphere
New Surprises at the Heliospheric Boundary, Part 1 | Space News
The Heliospheric Magnetic Field, the Solar Wind & the Interstellar Medium
NASA | Sentinels of the Heliosphere
Mysteries of the Sun pt 3/5 - Heliosphere
"INTERSTELLAR SPACE is DENSER as VOYAGER 1 leaves HELIOSPHERE. WHY?"Astronomers ask.
【MIKU】Heliosphere
MogueHeart - Heliosphere
Heliosphere - Change (Studiosession)
【MMD-PV】 Heliosphere / 初音ミク 【第11回MMD杯予選 投稿作品(遅刻組)】
Heliosphere 2265 - Hörspiel 1: Das dunkle Fragment (Hörprobe 1)
Asemic - Heliosphere