Seven firefighters were injured, including some with serious burns, after a trash fire spread to several cars, leading to a massive explosion in the Bronx on Wednesday, according to officials. | ABC7

NIST’s National Construction Safety Team has released a video update on its investigation into the June 2021 partial collapse of the Champlain Towers South building in Surfside, Florida. The team is evaluating two dozen hypotheses, relying on extensive physical evidence, imagery, historical records, witness interviews, remote sensing data, laboratory testing, computer modeling and more. Watch the video to hear directly from NIST experts. | National Institute of Standards and Technology (NIST)

The NIST investigation into the collapses of the World Trade Center buildings on September 11, 2001, led to more than 40 sweeping changes to U.S. building and fire safety codes. | National Institute of Standards and Technology (NIST)