Harger is one of the co-founders (with Adam Hyde in 1998) of r a d i o q u a l i a, a group which explores how broadcasting technologies can create new artistic forms and how audio can be used to illuminate abstract ideas and processes.

They have exhibited at museums, galleries and festivals, including: NTT ICC, Tokyo; New Museum, New York; Gallery 9, Walker Art Center, USA; Sónar, Barcelona; FACT centre in Liverpool; Ars Electronica, Linz, Austria; Experimental Art Foundation, Australia; Maison Européenne de la Photographie, Paris; and the Physics Room, New Zealand.

During her four-year tenure, Lighthouse presented shows from artists such as Trevor Paglen, David Blandy and Timo Arnall and commissioned new work from James Bridle, Semiconductor and The Otolith Group.

[10] After relocating to Europe in 1999, Harger undertook projects with the Bauhaus Dessau Foundation in Germany, the publishing house Arkzin in Croatia, and the Kiasma contemporary art museum in Finland.

She has worked as a freelance curator on exhibitions and events, including art.net.uk/now for the British Council in India in 2002 and Dots and Lines for the BBC and Sonic Arts Network in 2005.

From 2008 to 2014 Harger wrote the blog Particle Decelerator with news of science, art and technology, placing a special emphasis on the collision between the quantum and the cosmological.