Teenager Aston Smith dreams of working for SpaceX.
Related stories
Computational model guides lighting design to improve color discrimination in aging eyes
How eye-catching social media feeds steer attention toward misinformation
Hawaiian coral tests reveal heat tolerance varies by species and location
The politics of city rats: What urban rodents tell us about housing and sanitation
More tea? How Scotland's crops of the future could be set to change
Thwaites Glacier could contribute twice as much sea-level rise as previously projected