January 27 - Supreme Court Justice Stephen Breyer announces he plans to retire at the end of the court term. January 24 - The James Webb Space Telescope, which launched on Christmas Day, reaches its destination, nearly a million miles away from Earth. January 13 - The Supreme Court blocks President Joe Biden’s vaccine and testing requirement aimed at large businesses, but allows a vaccine mandate for certain health care workers to go into effect nationwide. January 7 - A 57-year-old Maryland man receives a genetically modified pig heart in a first-of-its-kind transplant surgery.

January 3 - Elizabeth Holmes, the former CEO and founder of failed blood testing startup Theranos, is found guilty on four charges of defrauding investors. On January 5, the CDC updates its recommendations for the Pfizer Covid-19 vaccine booster. January 3 - The US Food and Drug Administration expands the emergency use authorization for Pfizer’s Covid-19 vaccine boosters to children ages 12 to 15.

Here is a look back at the events of 2022.