SpaceX Falcon 9 rocket experiences rare failure

SpaceX's highly reliable Falcon 9 rocket has experienced a rare failure that means the latest batch of the company's Starlink satellites won't make it into orbit, the company said Friday, as regulators opened an investigation.

Hubble measures the distance to a supernova

Measuring the distance to truly remote objects like galaxies, quasars, and galaxy clusters is a crucial task in astrophysics, particularly when it comes to studying the early universe, but it's a difficult one to complete.