LOS ANGELES — A sonic boom shook part of Southern California Saturday night as SpaceX’s Dragon spacecraft reentered Earth’s atmosphere. According to the Hawthorne-based company, the unpiloted spacecraft was expected to “announce its arrival” with a brief sonic boom before landing in the Pacific Ocean.

Southern California residents were alarmed Saturday evening when a sonic boom was heard throughout the area after a SpaceX rocket reentered the atmosphere. At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.