In late 2017, a mysterious object tore through our solar system at breakneck speed. Astronomers scrambled to observe the fast ...

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

Theoretically, Sunbird's tremendous speeds could cut mission times to Mars in half, from seven to eight months to about four.

Through its "Moon to Mars" program, NASA plans to send the first crewed missions to Mars by the end of the next decade. To ...

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

NASA's PUNCH sun-studying mission has seen first light — and the team says all four instruments are indeed working as ...

Space solar power, or what I like to call Starlink for electricity, is at once a ludicrous idea and a bit of a pipe dream.

NASA’s PUNCH mission, designed to unravel the mysteries of the solar wind, has captured its first-light images, marking a key ...

A spacecraft traveling at one-tenth of the speed of light could shave the trip down to a quick 40 years. Future engineers could use nuclear power to achieve that, says Scott Bailey, an engineer at ...

A group of comets with unexplained movements presents a quandary D avide Farnocchia hunts down and tracks asteroids, and ...