SpaceX launched 29 more of its Starlink satellites into low-Earth orbit on Sunday, a day after a fireball was spotted in the sky off the coast of Florida.

Phosphorus is one of six essential elements that make life on Earth possible. When it bonds with hydrogen, it forms phosphine (PH3), a highly toxic ...

Astronomers have discovered phosphine gas in the atmosphere of an ancient brown dwarf, Wolf 1130C, using the James Webb Space ...

Blue Origin is preparing a second launch of its New Glenn rocket, this time with twin Mars orbiters on board. The company will attempt to recover the rocket’s first stage.

NASA’s James Webb has uncovered bizarre structures in Saturn’s atmosphere that scientists can’t explain—twisting what we ...

The twin-satellite mission could provide vital clues about Mars’ evolution and its ability to once support water and life.

NASA has captured unsettling cosmic noises — from black hole vibrations to Martian winds and Saturn’s rings — despite space’s ...

That’s what it took to save NASA’s ESCAPADE mission from a lengthy delay, and possible cancellation, after its rocket wasn’t ready to send it toward Mars during its appointed launch window last year.

For the second time in five days, NASA on Saturday halted a countdown in progress and postponed a planned attempt to launch the debut test flight of its giant, next-generation rocket, the first ...

Scientists have discovered that Saturn’s icy moon Enceladus is warmer than they thought — and that its hidden ocean may have ...

The European Space Agency’s plans to explore a moon of Saturn will be the focus of an open house Sunday evening at the ...

NASA’s Cassini mission has revealed surprising heat flow at Enceladus’ north pole, showing the moon releases energy from both ...