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 Bennett SchiffTop Intel Dem slams Trump claim about FBI informant Sunday shows preview: Lawmakers weigh in after Texas school shooting The Hill's 12:30 Report MORE (D-Calif.), Sen. Chris CoonsChristopher (Chris) Andrew CoonsCongress, Trump eye new agency to invest in projects overseas On World Press Freedom Day, elected officials must commit to keeping press freedom nonpartisan Overnight Defense: Pompeo clears Senate panel, on track for confirmation | Retired officers oppose Haspel for CIA director | Iran, Syria on agenda for Macron visit 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 Ann MikulskiDems ponder gender politics of 2020 nominee Robert Mueller's forgotten surveillance crime spree Clinton: White House slow-walking Russia sanctions 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.”