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The four astronauts set to fly around the moon during NASA’s Artemis 2 test flight depart the Neil A. Armstrong Operations and Checkout Building at the agency’s Kennedy Space Center in Florida, during a dress rehearsal for launch day on Dec. 20, 2025. From left are Canadian Space Agency astronaut Jeremy Hansen and NASA astronauts Victor Glover, Reid Wiseman and Christina Koch.

Artemis 2 moon astronauts rehearse for launch day (photos)

By Andrew Jones published

The four astronauts who will fly around the moon on NASA's Artemis 2 mission suited up, walked out and climbed aboard their spacecraft during a key prelaunch test at Kennedy Space Center.

Artemis
graphic with night sky in large font and silhouettes of people below looking up at the night sky.

What's up in the night sky tonight? Tuesday, Dec. 30: Moon approaches the Pleiades (after dark)

By Jamie Carter last updated

Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.

Stargazing
black and white aerial photo showing Earth's horizon

On this day in space: Dec. 30, 1930: 1st photo of the curvature of the Earth

By Hanneke Weitering, Chelsea Gohd last updated

On Dec. 30, 1930, the first-ever photo of the Earth's curvature was taken.

Space Exploration
This is a close-up photo of a satellite model, seen from the side. A prominent feature is a cone-shaped nozzle extending from the centre of the model. The nozzle has an iridescent surface with shades of blue, purple, red and gold. The rest of the model is covered in crinkled gold-coloured thermal insulation, which is shiny and reflective. The background is out of focus, but horizontal metal rails mounted on the wall behind the model are visible. The lighting is bright and highlights the textures of the nozzle and the insulation.

Golden satellite insulation sparkles during test | Space photo of the day for Dec. 30, 2025

By Kenna Hughes-Castleberry published

The test is designed to prepare satellites for one of the most complex tasks in space: safely approaching another object.

Satellites
a man in a suit speaks into a microphone in front of a nasa emblem

How NASA changed in 2025 — possibly forever

By Leonard David published

"The damage is real, but it doesn't have to be permanent."

Space Exploration
a promo banner for a space launch company

Celestis books Stoke Space rocket for 2nd-ever deep space memorial flight for human remains

By Jeff Spry published

This historic 2026 'Infinite Flight' service will blast off via a Stoke Space Nova rocket

Space Exploration
Visualization showing how charged particles stream onto the poles of the Earth creating the northern and southern lights as seen in the new PBS documentary Earth from Space by NOVA.

Flat Earth, spirits and conspiracy theories — experience can shape even extraordinary beliefs

By Eli Elster published

Why do people often adopt and develop beliefs that lack strong supporting evidence?

Earth

Iran says it launched 3 satellites to space on Russian rocket: report

By Tariq Malik published

Iran has launched a trio of new satellites into space with the help of a Russian rocket, the country's state media reported Sunday (Dec. 28).

Launches & Spacecraft
streaks of fire in the evening sky

12 times rockets and spacecraft crashed and burned in 2025

By Mike Wall published

We saw quite a few milestones notched in the final frontier this year. But there were a number of failures as well, some of them quite dramatic.

Launches & Spacecraft
A photograph of the tip of Florida and nearby Cuba from space, with lights from cities illuminating the surface of the planet, labeled cities like Orlando and Tampa are seen as well as a green surface over Earth's labeled airglow

ISS astronaut snaps stunning nighttime photo of Florida and Cuba | Space photo of the day for Dec. 29, 2025

By Kenna Hughes-Castleberry published

The image offers a rare look at how Earth's surface and atmosphere interact after sunset.

Earth
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