https://www.rtl-sdr.com/a-hydrogen-line-telescope-made-from-cereal-boxes-and-an-rtl-sdr/
A Hydrogen Line Telescope Made from Cereal Boxes and an RTL-SDR
Jan 28, 2020 - SpaceAustralia.com have recently been hosting a community science project that involves encouraging teams to build backyard radio telescopes that can detect...
hydrogen linemade fromcereal boxestelescopertl
https://www.setileague.org/askdr/hydrogen.htm
Ask Dr. SETI: What is the Hydrogen Line?
The SETI League, Inc. is a membership-supported, nonprofit [501(c)(3)] educational and scientific organization, devoted to privatizing the electromagnetic...
ask drwhat ishydrogen lineseti
https://sites.google.com/view/hawkrao/extra-galactic-hydrogen-line-observations
HawkRAO - Extra-Galactic Hydrogen Line Observations
The observation of neutral hydrogen (HI) line emissions from within our home galaxy (the 'Milky Way') is a medium level difficulty project for the citizen...
hydrogen lineextragalacticobservations
https://uhra.herts.ac.uk/id/eprint/21013/
A high resolution hydrogen line survey of Messier 31. II : The warped flaring hydrogen layer
high resolutionhydrogen linesurveymessierii
https://www.aanda.org/articles/aa/full_html/2010/03/aa13561-09/aa13561-09.html
A general catalogue of molecular hydrogen emission-line objects (MHOs) in outflows from young stars...
general cataloguemolecular hydrogenyoung starsemissionline