The actress -- who is currently very pregnant with her second child with husband Benjamin Millepied -- celebrated the good news by going for a hike in Los Angeles, California, hours after her nomination for Best Actress was announced.
Portman dressed comfy for the sunny hike, rocking a striped shirt, black sweatpants and knee-length cardigan.
The 35-year-old mom-to-be, who is reportedly expecting to welcome her new bundle of joy in February, was first nominated for a Best Supporting Actress Oscar in 2005 for her role in the drama Closer.
In 2011, Portman took home the Best Actress Oscar for her powerhouse performance in Black Swan. At the time, Portman was pregnant with the couple's first child, son Aleph.
In October, the celebrated star sat down with ET to open up about playing the American icon, and dished on whether or not she felt that being pregnant with her second baby might be a good luck charm when it came to taking home another golden statuette.
"I think they're good luck charms in life," Portman shared. "I don't necessarily connect it [to winning an Oscar], but it is certainly a joy." Check out the video below to hear more.