The heliosphere is the magnetosphere, astrosphere, and outermost atmospheric layer of the Sun. It takes the shape of a vast, tailed bubble-like region of space. In plasma physics terms, it is the cavi
The Sun photographed at a wavelength of 19.3 nanometers (ultraviolet)
Illustration of the heliosphere as released on 28 June 2013 which incorporates results from the Voyager spacecraft. The heliosheath is between the termination shock and the heliopause.
The bubble-like heliosphere moving through the interstellar medium.
Energetic neutral atom (ENA) detection is more concentrated in one direction.
The Voyager program is an American scientific program that employs two interstellar probes, Voyager 1 and Voyager 2. They were launched in 1977 to take advantage of a favorable planetary alignment to
Heliosphere
…interstellar wind where they are in equilibrium. Middle: water running into a sink as an analogy for the heliosphere and its different zones (left) and Voyager spacecraft measuring a drop of the solar wind's high-energy particles at the heliopause (right). Bottom: Logarithmic scale of the Solar System and Voyager 1's…
A poster of the planets and moons visited during the Voyager program.
A view of some of Voyager's instruments from below. Left: the cameras, ultraviolet and infrared spectrometers (far left), plasma detector (black box lower right), particle and radiation detectors (far right). On the boom, center and right, are plasma, particle, and cosmic ray detectors.
Voyager's fully extended 13-meter-long magnetometer boom