An international CSIRO-led team of astronomers has developed a new way to weigh the planets in our Solar System – using radio signals from the small spinning stars called pulsars.

　  “This is first time anyone has weighed entire planetary systems – planets with their moons and rings,” said team leader Dr David Champion from Germany’s Max-Planck-Institut für Radioastronomie.

“And we’ve provided an independent check on previous results, which is great for planetary science.”

See the website for more details.

http://www.csiro.au/news/A-new-way-to-weigh-planets.html（SY）