Square Kilometre Array (SKA) tagged posts

A radio telescope in outback Western Australia has completed the deepest and broadest search at low frequencies for alien technologies, scanning a patch of sky known to include at least 10 million stars. Astronomers used the Murchison Widefield Array (MWA) telescope to explore hundreds of times more broadly than any previous search for extraterrestrial life.

The study, published today in Publications of the Astronomical Society of Australia, observed the sky around the Vela constellation. But in this part of the Universe at least, it appears other civilisations are elusive, if they exist.

The research was conducted by CSIRO astronomer Dr Chenoa Tremblay a...

Spiral galaxy NGC 253. The core reveals violent star formation within a region 1, 000 light-years across. A starburst galaxy has an exceptionally high rate of star birth, first identified by its excess of infrared radiation from warm dust. Credit: Carnegie Institution of Washington.Credit: Jay Gallagher (University of Wisconsin-Madison), Alan Watson (Lowell Observatory, Flagstaff, AZ) and NASA/ESA/HST.

Astronomers have used a radio telescope in outback Western Australia to see the halo of a nearby starburst galaxy in unprecedented detail. A starburst galaxy is a galaxy experiencing a period of intense star formation and this one, NGC 253 or the Sculptor Galaxy, is ~11.5 million light-years from Earth.

“The Sculptor Galaxy is currently forming stars at a rate of 5 solar masses each year, wh...

Part of the ensemble of dishes forming South Africa’s MeerKAT radio telescope is seen in Carnarvon on July 16, 2016

Even operating at a quarter of its eventual capacity, South Africa’s MeerKAT radio telescope showed off its phenomenal power Saturday, revealing 1,300 galaxies in a tiny corner of the universe where only 70 were known before. MeerKAT’s full contingent of 64 receptors will be integrated next year into a multi-nation Square Kilometre Array (SKA) which is is set to become the world’s most powerful radio telescope.

Fernando Camilo said at the site of the dishes near the small town of Carnarvon, 600 km north of Cape Town, “This telescope as is today, only one quarter of the way down (to its full contingent) is”...