Portal Space Systems has raised $17.5 million to accelerate the development of a space vehicle with a solar thermal ...

NASA's Parker Solar Probe has completed is 2nd ultra-close flyby of the sun, and survived to transmit its data back to Earth.

NASA astronauts Suni Williams and Butch Wilmore both say they'd ride on Boeing's Starliner again, despite the issues the ...

NASA astronauts Butch Wilmore and Sunita Williams, who were stuck in space for more than nine months, took questions after ...

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Four space tourists who orbited the north and south poles returned to Earth on Friday, splashing down in the Pacific to end ...

"We're trying to encounter an astronomical object that streaks through our solar system just once and we don’t want to miss ...

NASA astronaut Butch Wilmore put some of the blame on himself when asked who was responsible for Boeing Starliner’s failure ...

The European Space Agency announced Thursday the Gaia spacecraft was turned off after a decade of data gathering.

After over a decade of stellar service, ESA’s Gaia spacecraft has been retired – but its legacy is just beginning. From ...

Four private spacefarers on a mission known as Fram2 set out to become the first humans to fly in orbit over both Earth's North and South poles.

A wealthy space tourist and three fellow adventurers plunged back to Earth aboard a SpaceX Crew Dragon capsule Friday, ...