NASA

This artist's-concept illustration depicts the spacecraft of NASA's Psyche mission near the mission's target, the metal asteroid Psyche.

NASA Prepares to Build Spacecraft Bound for a Metal Asteroid

The Psyche spacecraft, headed to an asteroid with the same name, will explore a metal world thought to be the leftover core of a destroyed planet

Shortly after the first human space flight, the Soviet Union began planning to send a woman to space.

The First Group of Female Cosmonauts Were Trained to Conquer the Final Frontier

Two decades before the first American woman flew to space, a group of female cosmonauts trained in Star City of the Soviet Union 

Identical twin astronauts, Scott and Mark Kelly, are subjects of NASA’s Twins Study. Scott (right) spent a year in space while Mark (left) stayed on Earth as a control subject.

NASA's Study of Astronaut Twins Creates a Portrait of What a Year in Space Does to the Human Body

Wide-ranging research compares astronaut Scott Kelly to his earthbound twin brother, Mark

Talk about sleeping on the job.

NASA Is Recruiting Women to Stay in Bed for Two Months

The gig pays around $18,500, but this is no dream job

The most recent vortex on the left and the first one discovered in 1989 by Voyager 2.

There's a Dark and Stormy Vortex Brewing on Neptune

It is the sixth massive dark and stormy vortex found on the planet since 1989 and the only one astronomers have watched develop

For the first time, two female astronauts will conduct routine tests outside the International Space Station later this month while a team of women at NASA direct the work from the ground. Left: Christina Hammock Koch; Right: Anne McClain

NASA Cancels First All-Female Spacewalk Due to Spacesuit Size Issues

NASA didn’t have two properly fitting and space-ready suits for both women

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

NASA Releases Opportunity Rover's Final Panorama Photograph

The little Mars explorer was hit by a duststorm in June, 2018 and never recovered, but it did send back 354 images from on its final days

The positions of the globular clusters used to estimate the mass of the Milky Way.

How Much Does the Milky Way Weigh?

Measurements from the Gaia satellite and Hubble Space Telescope show our galaxy tips the scales at about 1.5 trillion solar masses

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

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

Mars May Have Had a Planet-Wide System of Underground Lakes

A study of 24 craters shows they experienced the simultaneous rise and fall of groundwater, suggesting they were interconnected at one time

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

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

Why the Nation of Georgia Wants to Make Wine on Mars

Researchers there are looking for grape varieties that can grow in Martian soil and survive high radiation and carbon monoxide

Planet Hunter TESS Is Already Spotting Hundreds of Crazy New Worlds

The first data from the space telescope's mission tallies more than 200 potential planets, including some just 50 light-years away

Remembering Nancy Grace Roman, Trailblazing Astronomer Known as ‘Mother of the Hubble’

She worked on and advocated for the space telescope, which changed our view of the universe

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

Corona image from the Parker Solar Probe

Solar Probe Sends Back First Image and Data From the Sun

The Parker Solar Probe survived its first swoop around our star and will get even closer on its next two dozen trips

Beneath the Space Window at the National Cathedral in Washington, D.C., where a seven-gram sample of moon rock is incorporated into the design, a sold-out crowd gathered this week for the celebration of the 50th Anniversary of Apollo 8.

NASA Won’t Be Going ‘Back’ to the Moon—It Wants to Go Beyond It

At a 50th-anniversary event for Apollo 8, NASA’s Jim Bridenstine envisioned the moon’s potential for future space exploration

Extragalactic Background Light

This Is How Much Starlight the Universe Has Produced

4,000,000,000,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000,000,000,000,000,000,000,000,000,000 photons over 13.7 billion years

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