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.

The total solar eclipse has ended and the lunar flyby has concluded, NASA said. The Artemis II crew is now beginning the return trip home.

On Tuesday, the Orion spacecraft will exit the lunar sphere of influence at approximately 1:25 p.m. ET -- about 41,072 miles from the moon, according to the space agency.

The Artemis II crew have entered a total solar eclipse from space as Orion, the moon and the Sun have aligned.

The astronauts will see a mostly darkened moon and analyze the solar corona, which is the Sun’s outermost atmosphere, as it appears around the edge of the moon, according to NASA.

The total solar eclipse will last for about an hour. The four astronauts are also the first humans to view a total solar eclipse from space.