NASA released a photo of the Artemis II crew donning eclipse glasses ahead of the solar eclipse.

The image shows (from far left) Christina Koch, Jeremy Hansen, Reid Wiseman and Victor Glover protecting their eyes at key moments during the solar eclipse they experienced on Monday.

NASA has shared a photo of the moon fully eclipsing the sun, taken aboard the Orion spacecraft.

The image shows a mostly darkened moon with the solar corona, which is the Sun's outermost atmosphere, glowing around the moon's edge.

The Artemis II astronauts are the first humans to have witnessed a total solar eclipse in space.

The solar eclipse lasted for about an hour, according to NASA.

NASA has shared the first photos from the Artemis II crew's historic lunar flyby, including a stunning image of Earth.

The photo shows the crew's view of an Earthset as the planet disappears beyond the lunar horizon and the astronauts make their way to the far side of the moon.

The photo bears a striking resemblance to "Earthrise," a photo taken in 1968 from lunar orbit by astronaut William Anders during the Apollo 8 mission, which was the first crewed mission to reach the moon.

President Donald Trump called the Artemis II astronauts after the historic lunar flyby on Monday and invited them to the Oval Office upon their return to Earth.

“Today you’ve made history and made all America really proud, incredibly proud,” Trump said. “We have a lot of things to be proud of lately, but this is, there’s nothing like what you’re doing circling around the moon for the first time in more than half a century and breaking the all-time record for the farthest distance from planet Earth.”

After inviting the astronauts to visit the White House, Trump said, "I’ll ask for your autograph ... I don’t really ask for autographs much, but you deserve that."

"I look forward to having you in the Oval Office at the White House, and we will celebrate your incredible achievements and trials," the president said.

The president also said the U.S. will “establish a permanent presence on the moon” one day in the future, as well as “push on to Mars,” though he recognized that the latter feat may not necessarily occur during his administration. 

“We'll plant our flag once again, and this time we won't just leave footprints, we'll establish a permanent presence on the moon, and we'll push on to Mars, that'll be very exciting. I'm waiting for that so much. I'd love to be here, but maybe we won't quite make it in terms of timing,” Trump said.

Newly released photos from NASA capture the joy of the Artemis II crew after they looped around the far side of the moon

In one photo, entitled "Moon Joy," Christina Koch, Jeremy Hansen, Reid Wiseman and Victor Glover take time for a group hug inside the Orion spacecraft on April 7 as they head home.

Also seen in the photos is the plushie, "Rise," designed by a second grader who won a contest for his toy to travel with the astronauts.

At just under 200,000 miles from Earth, the Artemis II crew is closing in on the final destination of its cosmic ride.

-ABC News' Briana Alvarado