Nasa’s goal is to help industry reduce emissions from aircraft by how much by 2050 compared to 2005?

50%

Explanation:

Commercial aviation is responsible for 2% of global carbon emission. In the year 2009, the members of IATA (International Air Transport Association) had drawn a pledge to:

1. Halve the carbon emission due to aircraft by 2050, relative to emission of 2005

2. To make growth of industry carbon neutral by 2020

3. To cut CO₂ emission by 1.5% per year till 2020

To achieve these targets, a four pillar action plan was created.

howdy howdy!

i'd say it would be galileo!

f=ma newton's second law 7x8=56n