Category Archives: Radio Astronomy

Probe the Galaxy on a Shoestring with this DIY Hydrogen-Line Telescope

Foil-lined foam insulation board, scraps of lumber, and a paint-thinner can hardly sound like the tools of a radio astronomer. But when coupled with an SDR, a couple of amplifiers, and a fair amount of trial-and-error tweaking, it’s possible to build your own hydrogen-line radio telescope and use it to …read more

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Posted in 1420.4058 MHz, bandpass filter, fft, GnuRadio, horn, hydrogen line, LNA, Radio Astronomy, radio hacks, sdr, spectrometer, waveguide | Leave a comment

Chinese Radio Telescope Hopes to Find Exoplanets FAST

People who enjoy radio are constantly struggling to find a place to erect a bigger and better antenna. Of course it’s a different story and the most hardcore end of the spectrum: radio astronomers. The Chinese are ready to open up a new radio telescope called FAST (Five-hundred-meter Aperture Spherical …read more

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Posted in china, news, Radio Astronomy, radio hacks | Leave a comment

AI Finds More Space Chatter

Scientists don’t know exactly what fast radio bursts (FRBs) are. What they do know is that they come from a long way away. In fact, one that occurs regularly comes from a galaxy 3 billion light years away. They could form from neutron stars or they could be extraterrestrials phoning home. The other thing is — thanks to machine learning — we now know about a lot more of them. You can see a video from Berkeley, below. and find more technical information, raw data, and [Danielle Futselaar’s] killer project graphic seen above from at their site.

The first FRB …read more

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Posted in fast radio bursts, FRB, machine learning, neural networks, news, Radio Astronomy, SETI | Leave a comment

Search for Military Satellite Finds One NASA Lost Instead

[Scott Tilley] was searching for radio signals from the Air Force’s top-secret ZUMA satellite. He found something that is — we think — much more interesting. He found NASA’s lost satellite called IMAGE. You are probably wondering why it is interesting that someone listening for one satellite found another one. You see, NASA declared IMAGE dead in 2005. It went silent unexpectedly and did not complete its mission to image the magnetosphere.

NASA did a failure review and concluded that in all likelihood a single event upset caused a power controller to trip. A single event upset, or SEU, is …read more

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Posted in image satellite, nasa, news, Radio Astronomy, radio hacks, satellite, space | Leave a comment