ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray)
Despite the name, some black holes effectively “shine” as they suck up nearby material with such force that it begins to glow. New research reveals a new method for detecting these active black holes.
After six decades during which it tracked lunar missions, spotted distant pulsars and quasars, and even expanded our concept of the size of the Universe, the Parkes telescope is still going strong.
Event Horizon Telescope project/Nature Astronomy
Astronomers have taken a close-up look at the jets of plasma streaking away from a supermassive black hole - one of the strangest and most energetic features of galaxies.
Mysterious blasts of radio waves from across the universe called fast radio bursts are getting more attention from astronomers.
Fast radio bursts are the focus of a young and fascinating field of astronomy. Researchers just released data on more than 500 new bursts, quadrupling the total number of detected events.
At the turn of the twentieth century, electrical engineer Nikola Tesla began work on a wireless electricity network. It ultimately failed.
New 5G technologies also boast the raw ingredients needed to beam wireless power to small devices.
The Wi-Fi symbol, like the technology it represents, has become ubiquitous.
Smith Collection/Gado via Getty Images
Wi-Fi has become a fundamental part of modern digital life, but its foundation is the same as the technology that allowed your great-grandparents to listen to their favorite radio programs.
The famous Hindenburg tragedy was heard around the world via recorded radio journalism.
When the USSR launched the world’s first satellite, Sputnik 1 didn’t do much other than regularly “beep” over the radio. Yet, this simple sound is associated with the beginnings of space exploration.
The scientific consensus is that 5G doesn’t pose a danger to our health.
Should we be concerned about the health effects of 5G? The short answer is no – there’s no substantiated evidence that the electromagnetic energy used by mobile telecommunications causes harm.
We haven’t heard anything from alien civilisations, but perhaps they’ve heard us.
Amelia Earhart’s Lockheed Model 10-E Electra, with advanced navigation equipment mounted above the cockpit.
Eight decades after missing aviator Amelia Earhart was declared dead, technologies still don’t quite track every airplane all over the globe.
An artist’s impression of the strong magnetic field neutron star in Swift J0243.6+6124 launching a jet.
ICRAR/University of Amsterdam
Astronomers found something not predicted by current theory when they took a closer look at the emissions from a neutron star with a very strong magnetic field.
Pocket your phone without worry.
Phone image via www.shutterstock.com.
Did your holiday gift list include radiation-shielding undies to protect your privates from cellphone radio waves? A radiation expert explains they’re unnecessary – your phone won’t affect your fertility.
The GLEAM view of the centre of the Milky Way, in radio colour. Red indicates the lowest frequencies, green indicates the middle frequencies and blue the highest frequencies. Each dot is a galaxy, with around 300,000 radio galaxies observed as part of the GLEAM survey.
Natasha Hurley-Walker (Curtin / ICRAR) and the GLEAM Team
To the naked eye the universe we can see on a clear night is dotted with thousands of stars. See through radio eyes, then things look very different.
The vast expanse of Western Australia is perfect for radio astronomy.
Pete Wheeler, ICRAR
The Murchison Widefield Array sits in remote Western Australia far from noisy civilisation so it can help us understand the universe by tuning into radio waves from the distant cosmos.
Jean Paul Santos with the finished 4x4 sub-array antenna assembly that may help rovers talk directly with Earth.
New research provides a compact but powerful way for Mars rovers to communicate directly with Earth via an array of smaller antenna elements, bypassing the need for an intermediary.