Author Archives: Govert Schilling

Australia's ASKAP radio antennas

Radio Astronomy in the Aussie Outback

It's not easy to get to the Murchison Radio Observatory in Western Australia. Being in one of the most remote regions of the country means there's hardly any radio interference that might otherwise compromise the astronomical observations. It's one of the most radio-quiet zones on the planet.

NGC 5128 in Centaurus

Rain of Super-Particles

A 45-year mystery solved? Scientists using the new Pierre Auger Observatory say they've finally tracked down where ultra-high-energy cosmic rays — "tennis ball particles" — are coming from.

2-color closeup

Mira’s Marvelous Tail

Mira, the closest and brightest of the red long-period variable stars, has thrown off a gassy hood and a comet-like tail so big that if you could see them, they would overflow your telescope's field of view.

A Black Hole Swarm

Like mosquitos hovering around a mountain, small black holes swarm around the supermassive black hole in the core of the Milky Way. According to a team led by Michael P. Muno (University of California, Los Angeles), there may be as many as 20,000 stellar-mass black holes lurking within a three-light-year-wide sphere surrounding the 3-million-solar-mass...