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Moon

The plumes were first discovered in 2006 when the Cassini spacecraft spotted the geysers shooting water and other organic materials at high velocities hundreds of miles into space near the moon's south pole.

Could Methane-Spewing Microbes Be Living in the Depths of a Subsurface Ocean on Saturn’s Moon Enceladus?

The hot, chemical plumes could be produced by something similar to Earthly microscopic life forms that consume hydrogen and carbon, then burp up methane

A newly discovered white dwarf star (right) is only slightly larger than the moon (left).

New Research

Incredibly Dense White Dwarf Star Packs the Mass of the Sun Into the Size of the Moon

Researchers say if the star was any more massive it would likely collapse under its own weight and explode

Streaked across Ganymede's surface are bright light-colored regions of ridges and grooves that overlap darker-colored terrains along the icy shell. The textured scar-like areas suggest that the moon's surface underwent extreme geologic changes over time.

NASA’s Juno Space Probe Zooms by Largest Moon in the Solar System

The flyby will be the closest any spacecraft has flown near Ganymede in over two decades

A photograph captures the total lunar eclipse of January 21, 2019

Get Ready for the Super Flower Blood Moon Eclipse Next Week

Much of the western U.S. will see an extra-large, eerily red full moon on May 26

The lunar module Eagle, carrying Neil Armstrong and Buzz Aldrin, ascends back up to the command module Columbia with Michael Collins. It is often said that Michael Collins is the only human, living or dead, who is not in this photograph.

Future of Space Exploration

Apollo 11 Astronaut Michael Collins on the Past and Future of Space Exploration

On the occasion of the lunar landing’s 50th anniversary, we spoke to the former director of the National Air and Space Museum

Some designers promote fashion lines based on kente cloth from Ghana.

When Is Kente Cloth Worn and More Questions From Our Readers

You’ve got questions. We’ve got experts

Researchers propose storing genetic material from each of Earth's 6.7 million species of known organisms to safeguard life on our planet from annihilation.

Sending DNA From Earth’s 6.7 Million Species to the Moon to Safeguard Life

Researchers propose constructing a ‘lunar ark’ to provide our planet with a ‘reset button’ in the event of a world-ending catastrophe

Although the planets seem like they are close in proximity and we can see them in the Earthly skies they are millions of miles far away with Saturn being the farthest at billions of miles away.

A Rare Astronomical Phenomenon of Three Planets Aligning Occurs This Week

Jupiter, Saturn, and Mercury are visible in the pre-dawn sky this week, along with a crescent moon

Tianwen-1 is now officially in orbit around Mars.

Exploring Mars

China’s Tianwen-1 Mission Successfully Begins Mars Orbit

After a few months of observing Mars from orbit, the mission will attempt to land a rover on the planet’s surface

Alan Shepard, who was both an astronaut and a golf lover, said he got the idea while training for his Apollo 14 mission. “I thought: What a neat place to whack a golf ball.”

When Astronaut Alan Shepard Hit the Golf Shot Heard ‘Round the World

“The Moon is one big sand trap,” the astronaut said after he brought the game to a new frontier

On December 21, 1968, Apollo 8 launched from Kennedy Space Center at 7:51 a.m. EST with Frank Borman in command. His crew became the first humans to ride the mighty Saturn V rocket, breaking the bonds of Earth’s physical pull and entering the gravitational field of another celestial body.

How Apollo 8 Delivered Christmas Eve Peace and Understanding to the World

In a new book, Smithsonian curator Teasel Muir-Harmony examines the geopolitics during NASA’s space flight program

Surveyor 2 launched on a Centaur/Atlas rocket in September of 1966. The upper stage, called Centaur, was lost in space until it returned to Earth's orbit this November.

Astronomers Confirm Earth’s Newest Mini-Moon Is Actually a Long-Lost Rocket

The piece of space debris, called 2020 SO, is the upper stage rocket booster from a failed 1966 mission to the moon

The only photograph of Neil Armstrong on the moon resurfaced in the 1980s after years of obscurity.

You Could Own the First Space Selfie, Only Photo of Neil Armstrong on the Moon

Online Christie’s sale features 2,400 photographs from “the golden age of space exploration”

Laboratory tests reveal that ice blocks containing different salts glow differently after being exposed to radiation.

New Research

Radiation Might Make Jupiter’s Salty, Icy Moon Europa Glow

Europa is one of Jupiter’s four largest moons and a prime candidate for finding life beyond Earth

Scientists have known about ice in the dark, deep craters at the moon's poles, some of the coldest known places in the universe, but voyaging into one just wouldn't be likely.

New Research

The Moon Has More Water and Ice Hidden All Over Its Surface Than Originally Predicted

Scientists discovered that water is stored in tiny patches all across the moon’s surface, not just in the deep, freezing craters of its south pole

Halloween features a full moon every 19 years, and it's always a blue moon.

This Halloween, Look for the Hunter’s Blue Moon

The second full moon of the month gives Halloween an extra spooky atmosphere

The waxing gibbous Moon as we viewed it on December 3, 2011.

Smithsonian Voices

Is the Moon Fluffy?

Before spacecraft (and humans) set off to explore our nearest neighbor, these were some of the questions scientists were asking

In 1969, astronaut Neil Armstrong took this photo of Buzz Aldrin on the first-ever moon walk. Humans haven't walked on the moon since 1972.

Eight Countries Sign NASA’s Artemis Accords, New Legal Framework for Maintaining Peace on the Moon

Nations must sign and uphold the agreement if they plan to join NASA’s mission to send astronauts back to the moon

The projected path for 2020 SO, a space object that astronomers predict will become Earth's mini-moon in October, possibly staying until May 2021. The blue object in the center of the circle is Earth.

Earth May Soon Get Another Mini-Moon, but It’s Probably Just a Piece of Space Trash

It could be an asteroid—or, as one astronomer suggests, it could be a rocket booster from the 1960s

On Earth, most people are familiar with ultraviolet radiation’s harmful effects on our skin, but in space, astronauts are also subjected to galactic cosmic rays, accelerated solar particles, neutrons and gamma rays.

New Research

Moonwalking Humans Get Blasted With 200 Times the Radiation Experienced on Earth

The new findings will inform how much shielding future astronauts will need to safely explore the moon

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