Radio astronomy

space and time

Radio Telescope

Radio Astronomy, Sydney, 1952

Clever engineering and electronics allow radio astronomers to build up images from the focused observations these telescopes make.

With the right additional hardware, the RTL-SDR software defined radio can be used as a super cheap radio telescope for radio astronomy experiments such as Hydrogen line detection, meteor scatter and Pulsar observing. Hydrogen Line Marcus Leech of Science Radio Laboratories, Inc has released a tutorial document titled 'A Budget-Conscious Radio Telescope for 21cm', (doc version) (pdf here) where he shows: Two slightly-different designs for a simple, small, effective, radio telescope capable…

ASTRON is the Netherlands Institute for Radio Astronomy. This work by artist Danielle Futselaar shows radio telescopes and some of the deep sky objects they study.

The National Science Foundation has backed away from three of its headlining radio telescopes in the last decade. What comes next?

The brightest part of the #MilkyWay — the very heart of our galaxy — is situated approximately 25 000 light-years away from Earth. It can be seen in this photo, above the @ALMAObs antennas.

Astronomers have located the origin of mysterious radio waves that have baffled them for a decade. The fast radio burst, or FRB 121102, has been traced to a faint, dwarf galaxy three billion light-…

The Kalyazin RT-64 radio telescope may look abandoned, but it's an active Russian observatory. Built in 1974 and operational since 1992, it joined an astrobiology program with ESA, Roscosmos, and ExoMars in 2016. A team of 17 scientists use it to study pulsars, white dwarfs, and distant galaxies. This powerful telescope helps unravel cosmic mysteries, from fading stars to deep-space objects.

New Mexico Radio Observatory Array - SETI

The sky could be filled with brief blasts of energy that will help reveal the universe in greater detail.

Itty Bitty Radio Telescope - David Haworth....just in case E.T. has phone home!!!

Marcus Leech from ccera.ca is a pioneer in using low cost software defined radios for observing the sky with amateur radio telescopes. In the past he's shown us how to receive things like the hydrogen line, detect meteors and observe solar transits using an RTL-SDR. He's also given a good overview and introduction to amateur radio astronomy in this slide show. His recent project has managed to create a full Hydrogen sky map of the northern Canadian sky. In his project memo PDF…

CSIRO’s Parkes and Compact Array telescopes