Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Science / Space

An artist's illustration of a planet-like body in the Kuiper belt.

New Research

A Brief History of the Hunt for Planet X

The flutter over a possible new world beyond Neptune highlights the long, legitimate search for planets in the solar system’s fringe

The volcano Sapas Mons rises over the landscape in a computer generated image of Venus based on data from the Magellan spacecraft.

New Research

Venus May Have Surprisingly Youthful Skin

Based on a new analysis of its impact-driven blemishes, the surface of our sister planet may be much younger than thought

Document Deep Dive

How NASA’s Flight Plan Described the Apollo 11 Moon Landing

A second-by-second guide to the historic mission

In the movie The Martian, Matt Damon plays a stranded astronaut who has to grow his own food on the red planet. What he did in the film isn't so far off from how we could grow food in harsh environments on Earth.

Age of Humans

What Growing Potatoes on Mars Means for Earth’s Farmers

Matt Damon made it look easy in the recent Hollywood blockbuster, but Mars and Earth aren’t really all that different after all

The volcanic plume responsible for the 2010 eruption of the Eyjafjallajokull Volcano in Iceland has also brought up bits of Earth's ancient mantle from deep inside the planet.

New Research

Earth’s Water May Be as Old as the Earth Itself

Ancient volcanic rocks may have preserved tiny samples of the planet’s original moisture

Left: Alan Stern holds a 2005 Hubble image of the Pluto system on January 19, 2006, two hours after the successful launch of the New Horizons probe. Right: A triumphant Stern holds a full-frame image of Pluto, taken just hours before the New Horizons probe reached its closest point to Pluto.

American Ingenuity Awards

How Alan Stern Brought Pluto to Earth

The scientist behind NASA’s New Horizons mission gave cheering earthlings their first close-up view of the dwarf planet

This composite image features Pluto and its largest moon Charon in enhanced color.

New Research

Sorry Pluto, You Still Aren’t a Planet

A new test for planetary status leaves the diminutive world and its dwarf planet kin out of the family portrait

This creamy expanse is Sputnik Planum, the western lobe of the heart-shaped feature on Pluto.

New Research

Pluto May Have Ice Volcanoes at the Bottom of Its Heart

Two southern peaks have depressions that hint they once spewed icy slurry onto the tiny world’s surface

An artist's concept of NASA's Mars Atmosphere and Volatile Evolution (MAVEN) mission at Mars.

New Research

The Sun Stole Part of Mars’ Atmosphere, and NASA Was Watching

Observations from the MAVEN spacecraft should help scientists figure out if and when Mars had the right conditions for life

These galaxies are smiling at you thanks to general relativity.

Think Big

Seven Simple Ways We Know Einstein Was Right (For Now)

For the past 100 years, these experiments have offered continued evidence that general relativity is our best description of gravity

An artist's rendering of the MOA-2011-BLG-262 system, which hosts a potential exomoon orbiting a Jupiter-like planet.

New Research

In a Rare Pairing, a Venus-Like Planet Has Been Found Around a “Failed Star”

The system offers clues to the way planets and moons form and may aid in the quest to find habitable worlds across the galaxy

An artist's rendering shows an acoustic hologram trapping a particle over a levitation device.

New Research

This Acoustic Tractor Beam Can Levitate Small Objects With Sound

The device allows researchers to float and manipulate targets with just a single array of ultrasound emitters

Light reflecting off Saturn illuminates the plumes shooting out of Enceladus in this 2013 Cassini image.

New Research

NASA Spacecraft Heads for Deepest Ever Dive Into Saturn Moon’s Plumes

Cassini will plunge into the watery geysers to search for evidence of hydrothermal vents and other clues about the moon’s hidden ocean

An artist’s rendering shows a white dwarf star shredding a rocky asteroid.

New Research

Dead Star Shredding a Rocky Body Offers a Preview of Earth’s Fate

The stellar corpse spotted by a NASA telescope backs up a theory that white dwarf stars eat planetary remnants

A color composite image highlighting pluto's brilliant diversity of color and texture. The western lobe of the heart—an area rich with nitrogen, carbon monoxide and methane ice—is brightly displayed in the right of the image.

First Official Data From the Pluto Flyby Reshapes the Dwarf Planet’s History

“The ‘little spacecraft that could’ is making a lot of big discoveries,” says Alan Stern

Shaving was something of a job on all the Apollo missions because in Zero-G, water doesn't just run off the face.

New Photos From Apollo Mission Depict the Mundane Daily Tasks of Astronauts at Work

From the original film rolls that the astronauts took into space, a work-a-day routine emerges of Apollo mission voyages

The shiny, dark crust of a meteorite emerges from the snow during an ANSMET collection trip to Antarctica.

Space Rock Hunters Are About to Invade Antarctica

Scientists with the ANSMET program will endure six weeks near the South Pole during an annual field trip to find meteorites

People around the world gathered to photograph and ogle the bright red glow of last night’s supermoon lunar eclipse.

The Photos of the Rare Supermoon/Lunar Eclipse Convergence Do Not Disappoint

Take in the majesty of the unusual astrophysical event with these photos captured around the world

Matt Damon stars as Mark Watney, the titular "Martian" who gets left for dead on the red planet.

The Secret of “The Martian” Success? Scientific Peer Review

Andy Weir’s tale of a stranded astronaut got its start as a blog, complete with reader comments that helped shape the plot

Think Big

The Theory of Relativity, Then and Now

Albert Einstein’s breakthrough from a century ago was out of this world. Now it seems surprisingly down-to-earth

Page 21 of 40