Spacecraft

Some astronomers argue the space agency’s next flagship observatory will memorialize discrimination. Others are waiting for more evidence

A record-breaking altitude and a few minutes of weightlessness in an extraordinary vehicle

This is what NASA's Parker Solar Probe plans to fly through

A toothpick proves that nobody's getting to the stars very quickly using conventional rocketry

The Soviet Union launched the world’s first artificial satellite 60 years ago

Isolated in a giant thermal vacuum chamber, NASA’s $8.6 billion next-generation observatory is riding out the worst of Hurricane Harvey

Despite technical glitches and regulatory hurdles, nanosatellite swarms could someday be the cornerstone for revolutionary interplanetary or even interstellar space-science missions

A boom in nanosatellites could revolutionize space science and industry, but also dramatically increase the hazards of space junk

The orbital outpost is presently slated to be retired as early as 2024

Humans have been visiting and exploring Mars for more than half a century, and NASA has released a video celebrating the agency's remarkable contributions

Scientists think bright spots may be briny material bubbling up into a crater 

DSCOVR’s computer may be suffering from radiation-induced glitches, months after it became the primary sentinel for incoming solar storms