Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

Just as avalanches on snowy mountains start with the movement of a small quantity of snow, the ESA-led Solar Orbiter ...

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

NASA’s Gateway is coming to life with a solar-powered spacecraft built to light it up—and move it around the Moon.

Realising that our solar system isn’t like most others out there has helped astronomers rewrite the story of how it formed ...

KENNEDY SPACE CENTER — SpaceX’s Falcon 9 rocket pierced the Wednesday morning sky as it launched three spacecraft from NASA and NOAA that will study the solar system’s “bubble,” collect information on ...

Scientists have discovered over 6,000 planets that orbit stars other than our sun, known as exoplanets. More than half of ...

Solar Orbiter has captured the clearest evidence yet that a solar flare grows through a cascading “magnetic avalanche.” Small, weak magnetic disturbances rapidly multiplied, triggering stronger and ...

Titan has long stood out among the moons of the solar system. NASA’s data revealed conditions and processes rarely seen beyond Earth. From atmospheric chemistry to surface features, the findings ...

Solar prominences occur when the sun’s plasma, flowing along the magnetic field lines that the sun creates, forms a loop into space along the edge of the sun’s disk. When a prominence becomes ...

The Draco thrusters of the SpaceX Dragon cargo spacecraft fire during a demonstration of its ability to reboost the International Space Station in September. Credit: NASA HOUSTON—NASA and SpaceX have ...