Tech mogul Elon Musk expressed optimism about his Department of Government Efficiency at Donald Trump's presidential inauguration, even as lawsuits against the agency caused popular dog-themed cryptocurrency Dogecoin (CRYPTO: DOGE) to plummet.

Elon Musk cheered after newly sworn-in President Donald Trump mentioned Mars in his inauguration speech on Monday. “We will pursue our manifest destiny into the stars,” Trump said, “by launching American astronauts to plant the stars and stripes on the planet Mars.

Mr Musk is in charge of Mr Trump's newly created Department for Government Efficiency (DOGE). Elon Musk's starring role in the new Donald Trump administration was confirmed as he appeared front and centre of his inauguration proceedings - and witnessed him pledge a mission to Mars.

A deep philosophical rift between the two billionaire leaders of the “Department of Government Efficiency” left Musk alone at its top, which could give him more power than envisioned

A visibly excited Elon Musk responded with both thumbs up in celebration as Donald Trump shared plan to launch American astronauts to plant the American flag on planet Mars

During his second inauguration speech, President Donald Trump endorsed a Mars mission as a part of America’s push into new horizons.

Elon Musk pumped his fists as he spoke at the Inauguration Day viewing party at Capital One arena. He celebrated Trump’s victory, calling it “really important” and highlighting the new president’s promise to plant the U.

The world saw Donald Trump take the oath of office for his second non-consecutive term as President of the United States on Monday. The ceremony, held in the Rotunda of the U.S. Capitol, drew an eclectic crowd of tech moguls, foreign diplomats, and business leaders.

Getting humans to Mars has long been an obsession for SpaceX CEO Elon Musk. On Monday, that project got a full endorsement from the newly sworn-in president. During his inaugural address, President Donald Trump promised he would “pursue our manifest destiny into the stars,

With Donald Trump now back in the White House, SpaceX's Elon Musk is more excited than ever about the prospect of his company putting the first humans on Mars.

Speaking at a celebratory rally in Washington, Mr. Musk twice extended his arm out with his palm facing down, drawing comparisons to the Nazi salute.