Space

An artist's concept of the Axel rover rappelling into a lunar pit.

NASA Considers a Rover Mission to Go Cave Diving on the Moon

The deep caverns and pits that dot the lunar surface could hold clues to the moon's history and perhaps provide shelter for future human exploration

Margaret Hamilton stands next to a stack of program listings from the Apollo Guidance Computer in a photograph taken in 1969.

Women Who Shaped History

Margaret Hamilton Led the NASA Software Team That Landed Astronauts on the Moon

Apollo’s successful computing software was optimized to deal with unknown problems and to interrupt one task to take on a more important one

An ultraviolet image of the Andromeda galaxy, the closest major galaxy to the Milky Way, taken by NASA's Galaxy Evolution Explorer space telescope. Like our own galaxy, Andromeda is a spiral galaxy with a flat rotating disk of stars and gas and a concentrated bulge of stars at the center.

Streams of Stars Snaking Through the Galaxy Could Help Shine a Light on Dark Matter

When the Milky Way consumes another galaxy, tendrils of stellar streams survive the merger, containing clues about the universe's mysterious unseen matter

The SpaceX Crew Dragon spacecraft docked to the International Space Station.

Future of Space Exploration

After a Successful Test Flight to the International Space Station, SpaceX Looks Ahead to Launching Astronauts

SpaceX's new Crew Dragon spacecraft could launch the first astronauts from U.S. soil in almost a decade

A mural titled "The Origin of Life on Earth" at NASA Ames Research Center. The mural depicts the formation of our planet and the conditions that led to the evolution of life.

Earth's Rock Record Could Reveal the Motions of Other Planets

Studying the layers of Earth's crust, scientists have created a "Geological Orrery" to measure planetary motions dating back hundreds of millions of years

An artist's concept of the Beresheet lunar lander on the moon.

Israel's Private Lunar Lander Blasts Off for the Moon

The Israeli spacecraft Beresheet will gradually raise its orbit to reach the moon, landing after about a month and a half of flight

A mosaic of Mars images captured by the Viking Orbiter 1, which operated around the planet from 1976 to 1980. Valles Marineris, the largest canyon in the solar system, cuts across middle of the planet, stretching over 3,000 km long and up to 8 km deep.

With Opportunity Lost, NASA Confronts the Tenuous Future of Mars Exploration

Following decades of continuous flights to Mars, NASA is facing a shortage of missions

This cylindrical vessel, known as the Case/Throat/Nozzle (CTN), is the portion of RocketMotorTwo donated to the museum. It is one of the only non-reusable components of SpaceShipTwo.

The Engine Powering the Future of Civilian Spaceflight Enters the Collections

SpaceShipTwo’s historic rocket motor lands at the National Air and Space Museum

An artist's concept of the Mars Exploration Rover Opportunity superimposed on a photo of Victoria Crater, taken by the rover.

How NASA's Opportunity Rover Made Mars Part of Earth

After more than 15 years exploring the surface of Mars, the Opportunity rover has finally roved its last leg

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Ingenious Minds

Astrophysicist Mercedes Lopez-Morales Is Grooming the Next Generation of Planet Hunters

"The Daily Show" correspondent Roy Wood, Jr. talks with the astrophysicist about adrenaline, fear, curiosity and attracting younger generations to science

A picture taken on January 21, 2019 in Duisburg, Germany, shows a view of the Super Blood Moon above an industrial plant during a lunar eclipse.

Ten Stunning Photos of the Super Blood Wolf Moon Lunar Eclipse

A lunar eclipse was visible across much of the world last night, bathing the moon in a reddish glow

Astronomers believe that in the distant future, trillions of years from now, new and exotic types of stars will form across the universe.

Four Types of Stars That Will Not Exist for Billions or Even Trillions of Years

According to models of stellar evolution, certain types of stars need longer than the universe has existed to form

The artist's concept depicts a comet-like tail of a possible disintegrating super Mercury-size planet candidate as it transits its parent star named KIC 12557548. At an orbital distance of only twice the diameter of its star, the surface temperature of the potential planet is estimated to be a sweltering 3,300 degrees Fahrenheit.

Disintegrating Planets Could Be the Key to Discovering What Worlds Are Made Of

Exoplanets that have been ripped apart by their host stars could provide an opportunity to measure the minerals of the galaxy

A polarized-light microscopy image (in background) of a section from the Allende meteorite is one-thousandth of a millimeter thin.

The Oldest Material in the Smithsonian Institution Came From Outer Space

Decades after the Allende Meteorite plunged to Earth, scientists still mine its fragments for clues to the cosmos

One of this issue's questions is about the starfish's namesake shape.

Why Are Starfish Shaped Like Stars and More Questions From Our Readers

You asked, we answered

This image taken by the Long-Range Reconnaissance Imager (LORRI) is the most detailed of Ultima Thule returned so far by the New Horizons spacecraft. It was taken at 5:01 Universal Time on January 1, 2019, just 30 minutes before closest approach from a range of 18,000 miles (28,000 kilometers), with an original scale of 730 feet (140 meters) per pixel.

Behold the Most Distant Object Ever Visited by Spacecraft

The New Horizons spacecraft has transmitted images from its New Year’s Day approach back to Earth

Artist’s impression of NASA’s New Horizons spacecraft encountering 2014 MU69, a Kuiper Belt object that orbits one billion miles (1.6 billion kilometers) beyond Pluto, on Jan. 1, 2019. With public input, the team has selected the nickname “Ultima Thule” for the object, which will be the most primitive and most distant world ever explored by spacecraft.

Ring in the New Year With NASA’s Most Distant Planetary Encounter in History

The New Horizons spacecraft is on final approach to the distant Kuiper Belt Object, Ultima Thule, and you can follow along live

A map of the moon with labeled features, from Selenographia by Johannes Hevelius.

The 17th-Century Astronomer Who Made the First Atlas of the Moon

Johannes Hevelius drew some of the first maps of the moon, praised for their detail, from his homemade rooftop observatory in the Kingdom of Poland

1960s science fiction illustration of lunar exploration.

The Missions to the Moon That Never Left the Drawing Board

From pioneers of science fiction to the height of the space race, these are the ideas for lunar flight that never launched

An artist's rendering of the small rover that will be deployed on the far side of the Moon as part of the Chang'e-4 mission.

China Launches First Mission to Land on the Far Side of the Moon

Not glimpsed by humanity until 1959, the surface of the far side of the Moon has never been visited before

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