The National Aeronautics and Space Administration (NASA) successfully landed a six-wheeled rover named Curiosity on Mars at 1:39 a.m. Eastern time Monday morning.

Several members of Congress stayed up late to watch the event live, with Klobuchar, Rep. Donna Edwards (D-Md.), Rep. Adam SchiffAdam SchiffOvernight Cybersecurity: What we learned from Carter Page's House Intel testimony | House to mark up foreign intel reform law | FBI can't access Texas shooter's phone | Sessions to testify at hearing amid Russia scrutiny Schiff: 'Our democracy is under threat' from Trump, Russia Carter Page wanted Trump to take 2016 trip to Russia MORE (D-Calif.), Sen. Chris CoonsChristopher (Chris) Andrew CoonsMcConnell: 'I don't hear much pressure' to pass bill protecting Mueller from Trump Bipartisan lawmakers can rebuild trust by passing infusion therapy bill Democrats double down on calls for Congress to protect Mueller MORE (D-Del.) and others tweeting in the early morning hours, several having watched from NASA locations.

Additionally, the Curiosity Rover — along with NASA staff members like Ferdowsi — live-tweeted the event in the first-person. “It once was one small step... now it's six big wheels. Here's a look at one of them on the soil of Mars,” Curiosity tweeted early Monday morning, along with a picture sent straight from Mars.

President Obama tweeted congratulations to NASA on the historic accomplishment. Many Democrats in Congress followed the president’s lead in emphasizing the government support of the mission, with Sen. Barbara MikulskiBarbara MikulskiClinton: White House slow-walking Russia sanctions Top Lobbyists 2017: Hired Guns Gore wishes Mikulski a happy birthday at 'Inconvenient Sequel' premiere MORE (D-Md.) tweeting her pride in “the civil servants at NASA.” Obama has taken heat in the past allowing NASA to end the space shuttle program during his presidency, but private funding has successfully paved the way to further developments in human spaceflight.

NASA Administrator Charles Bolden stressed the success of U.S. space exploration overall at a press conference heralding Curiosity’s success very early on Monday morning.

“Tonight, I’m probably not going to include the counties, at least 4 countries — and I won’t name them — who are on Mars, and they’re on Mars because they went with the United States,” Bolden said, according to reports. “I know this may sound a little strange in this international environment, but I want everyone to understand what I mean when I say our leadership is going to make this world better.”

Rep. Dennis Ross (R-Fla.) chimed in that the U.S. “can and must lead in Space. Always.”

Sen. Kay Bailey Hutchison (R-Texas) called it “a testament to #NASA’s engineering superiority.”