NASA

New Hubble Image Captures the Collision of Two Galaxies

A beautiful look at a violent event

The impacts from the Nimbus satellites (Nimbus-1 pictured here) made a lasting mark on meteorology and climate science that can still be felt today.

The Day the Nimbus Weather Satellite Exploded

The writer's grandfather recalls a seminal moment in the Space Race

Jeanette Epps tries on a space suit

The International Space Station Will Finally Welcome a Black Astronaut

In May 2018, flight engineer Jeanette J. Epps will begin her mission on the ISS

A wide view of the rift in Larsen C as seen on November 10, 2016. The crack has since lengthened by about 12 miles.

An Iceberg Larger Than Rhode Island Is Poised to Break From Antarctica

Its break from the ice shelf could spell trouble for the frozen expanse

An artist’s conception of the Lucy spacecraft flying by the Trojan asteroid Eurybates (left) and Psyche, the first mission to a metal asteroid (right).

NASA Just Announced Two New Missions, But Shelved Others

Though the new missions have exciting prospects, some scientists aren’t thrilled by the decision

Comet 45P/Honda-Mrkos-Pajdušáková as seen in October 2011

Fireworks Not Your Thing? Then Look Out For a Comet on New Year’s Eve

With a telescope in hand, you can watch a comet zoom past the Earth tomorrow night

New asteroids are detected every day surrounding Earth, most of which are harmless.

Sure, Earth Could Get Hit by a Deadly Asteroid—But There’s an Upside

Con: Devastating outer space impacts. Pro: Global unity!

Check Out NASA's Picks for This Year's Best Images of Earth

From sunsets to city lights, the images capture the beauty of our ever-changing planet

Illustration of NASA's 2005 Deep Impact mission

Scientist Warns We're Unprepared for a Comet Strike

NASA researcher Joseph Nuth proposes that we build and store two spacecraft to deal with potential comet or asteroid strikes

John Glenn stands in the NASA mailroom surrounded by thousands of letters sent to him.

John Glenn and the Sexism of the Early Space Program

Fan mail sent to the astronaut reveals the rigidity of gender roles in the 1960s

Artist's rendering of KITE

Japan Testing "Space Tether" to Knock Junk Out of Orbit

The KITE experiment will use a half-mile long cable to guide some of the 500,000 chunks of space junk out of orbit

John Glenn, standing top right, looks at a model of the ship that took him to space with other astronauts from the Mercury space program in an undated photograph.

For a Larger-Than-Life Space Icon, John Glenn Was Remarkably Down-to-Earth

Friends and colleagues recall his abiding love for Smithsonian’s work, the history of spaceflight and peanut butter buckeyes

Cassini crosses Saturn's F ring once on each of its 20 Ring-Grazing Orbits, shown here in tan and lasting from late November 2016 to April 2017. Blue represents the extended solstice mission orbits, which precede the ring-grazing phase.

In Its Final Hurrah, Cassini Will Swoop Past Saturn’s Rings

The craft will take one last look at the ringed planet before diving into its depths

Astronauts enjoy a Thanksgiving feast on the International Space Station in 2014. Turns out that modern space food is something to be grateful for.

What Do Astronauts Eat on Thanksgiving?

It’s not as bad as you might think

Mercury's Great Valley is the dark blue stripe across the center of the image.

Mercury's Newly-Discovered "Great Valley" Puts Earth's Grand Canyon to Shame

The vast scar across the tiny planet is remarkable in itself—but it also reveals that Mercury may still be tectonically active

Sarah Parcak

Space Archaeologist Sarah Parcak Uses Satellites to Uncover Ancient Egyptian Ruins

The Indiana Jones of low Earth orbit harnesses 21st-century technology to uncover long-buried treasures

Sputnik Planitia is a 325,000-square-mile, ice-covered basin on Pluto.

How the Pull of an Icy “Heart” Sent Pluto’s Poles Wandering

Using New Horizons data, scientists determine that the erstwhile planet has a more dynamic past than we thought

Two natural color images from NASA's Cassini spacecraft show the changing appearance of Saturn's north polar region between 2012 and 2016.

The Swirling Storm Above Saturn’s North Pole Changed Colors

The years-long shift may be a sign of changing seasons

First photo from space, 1946

American Scientists Took the First Photo of Earth From Space Using Nazi Rockets

70 years ago, researchers at White Sands Missile Base strapped a movie camera to a V2 rocket to get a bird's-eye view of our planet

Schiaparelli Mars Lander Likely Crashed on Descent

The European Space Agency lost contact with the Schiaparelli probe after it jettisoned its heat shield and deployed its parachute

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