SpaceX readies for blast-off with NASA astronauts aboard

Gray skies loomed over Florida's Atlantic coast Tuesday, just one day before two astronauts were set to blast off aboard a SpaceX capsule on the most dangerous and prestigious mission NASA has ever entrusted to a private company.

Optimal time to treat Huntington's disease identified

The earliest brain changes due to Huntington's disease can be detected 24 years before clinical symptoms show, according to a new UCL-led study.