John McFall is a para-astronaut, and he hopes the first person with disabilities will enter the International Space Station by 2030 -- before the complex is slated to retire from service later that year.
Scientists have uncovered the "genetic fingerprint" of the dinosaur-killing Chicxulub impactor, potentially revealing the fateful rock's origins in the outer reaches of our solar system.
Archaeologists should consider tapping into satellite imagery when assessing the impacts climate change can have on ancient underground structures, a new study argues.
