Justice Ruth Bader Ginsburg was back on the Supreme Court bench Tuesday, eight weeks after surgery for lung cancer.

Ginsburg, a liberal jurist who will turn 86 in March, was steady on her feet as she walked unassisted up the steps leading to the bench before sitting for the scheduled one-hour argument in a case involving the U.S. Postal Service.

Wearing one of her signature decorative collars, she stood with the other eight justices as the court marshal called the court to order, before taking her usual seat to the right of Chief Justice John Roberts.

She had returned to the Supreme Court building on Friday for the first time since her surgery in December, but that was for the justices' private conference. She also was captured on camera on Monday by TMZ walking through a Washington airport where she said she was 'fine.'

Ginsburg missed the court's arguments in January as she recovered from the surgery. But the court said she participated in the court's work during her absence.

Back at court: Ruth Bader Ginsburg, 85, took part in her first public hearing at the Supreme Court since cancer surgery before Christmas.

Full court: Ruth Bader Ginsburg joined the other justices of the Supreme Court Tuesday. The entire bench is front, from left: Associate Justice Stephen Breyer; Associate Justice Clarence Thomas; Chief Justice John Roberts; Ginsburg; Associate Justice Samuel Alito Jr. Rear: Associate Justice Neil Gorsuch; Associate Justice Sonia Sotomayor; Associate Justice Elena Kagan; and Associate Justice Brett Kavanaugh

Return: Ruth Bader Ginsburg was back at the Supreme Court for the first time this year Friday

Ginsburg, who joined the court in 1993, underwent a surgical procedure called a pulmonary lobectomy on Dec. 21 at Memorial Sloan Kettering Cancer Center in New York to remove two cancerous nodules in her left lung. She was released from the hospital on Dec. 25.

She returned to the court on Friday for the first time since the surgery to take part in the nine justices' private conference. Last month, the court said Ginsburg's recovery was on track and that there was no evidence of remaining disease.

Ginsburg missed oral arguments in January for the first time in her lengthy career on the court, fueling speculation about her ability to continue in the job. As the oldest justice, she is closely watched for any signs of deteriorating health.

She is one of four liberal justices on a court with a 5-4 conservative majority.

Though she worked from home during her absence from the court, Ginsburg attended a Feb. 4 concert in Washington titled 'Notorious RBG in Song.'

She is viewed as something of a cult figure by U.S. liberals, known by that nickname after the late rapper Notorious BIG.