..., Voyager 2 crosses the protective bubble of the heliosphere surrounding the planets and ventures into the realm of interstellar space to join with its twin, Voyager 1. The trailblazing spacecraft is now slightly more than 18 billion kilometers...
... billion miles) from Earth, the distant probe has now notched up another new first; the first interstellar parallax experiment. The first known astronomical measurement using parallax is thought to have occurred in 189 B.C., by Greek astronomer...
..., as the probes hurtle from the ‘heliosheath’ - a zone where the clutches of the solar winds loosen - into interstellar space. Mounted on these craft are golden discs that contain ‘sounds and images selected to portray the...
... 50 times wider than the Earth’s orbit, has been detected around a Solar-type protostar, showing that interstellar organic materials are being fed into a rotating disk structure that eventually forms a planetary system. Using...
... at the time of its formation 4.6 billion years ago. Observed values of 3He in pre-solar material and the interstellar medium (ISM) imply that the abundance of this isotope (relative to hydrogen) should be around 2.5 × 10-5. This figure, coupled...
... to large-scale galactic and intergalactic dynamics. They also have a significant contribution to the hydrostatic balance in the interstellar medium. Unfortunately, much remains unknown about how these fields are generated or how they are evolving...