An independent scientist, known for his criticism of the highly controversial space propulsion technology EmDrive, has confirmed that he will be presenting information relating to the technology at a conference in Colorado, US in September. Several other noted scientists and researchers will also be present.

On Friday 16 September, Dr José Rodal posted on the Nasa Spaceflight forum that he would be unable to help another user on the forum who was requesting help to perform an EmDrive experiment.

Rodal said that the reason he was busy was because he would be attending a "conference presentation on breakthrough propulsion". When asked to elaborate, he announced that he would be attending the "Estes Park Advanced Propulsion Workshop" – a three-day conference hosted by the Space Studies Institute (SSI) from 20-22 September at the Estes Park Center in Colorado.

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