Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: NASA/GSFC CTX global mosaic: ...

An ominous-looking nebula named NGC 246 lurks in the constellation Cetus about 1,600 light-years away from Earth. It is ...

Harvard astrophysicist Avi Loeb is fiercely demanding that NASA release high-resolution images of the interstellar object 3I/ATLAS.

When Comet 3I/ATLAS roared into the solar system this summer, it launched a scientific scramble to study what astronomers ...

The dust-up over the lunar lander could pit Elon Musk against his billionaire rival Jeff Bezos. And it has already sparked a ...

Is 3I/ATLAS a once-in-a-century interstellar comet or a genuine signal? We separate verified data from viral claims, quotes from NASA and Harvard.

SpaceX defended Starship and said it is assessing a simplified moon mission architecture, with a propellant transfer test ...

On Wednesday, the space companies owned by two of the richest people on Earth — Elon Musk’s SpaceX and Jeff Bezos’ Blue Origin — submitted ideas to the space agency for a faster program to land ...

Experts warn that the Starship Human Landing System may be years behind schedule, but SpaceX says it has a new plan to save its Artemis 3 contract.

The ISS has “come into its own as a very sophisticated scientific laboratory,” says retired NASA astronaut Scott Kelly, who ...

Tony Dokoupil brought up the astronaut during a discussion of Kim Kardashian's claim that the moon landing was fake.

NASA's NICER telescope halts its mission after a key motor fails; engineers attempt to salvage eight years of space science.