Astronomers are thrilled by new Hubble images of interstellar comet 3I/ATLAS, revealing two distinct jets of material ...

The 26-foot-tall (8-meter-tall) cargo lander is expected to embark on its first flight during the first quarter of 2026, ...

Carl Sagan once said, “Exploration is in our nature. We began as wanderers, and we are wanderers still.” These words ...

Jared Isaacman will lead NASA as it sends astronauts around the moon and hopes to launch a space telescope to study dark ...

A little over 19 years after it left Earth, NASA’s Mars Reconnaissance Orbiter is approaching a major anniversary, and ...

So, to create a must-read story list for you, we asked our staff to select their favorite pieces of 2025. Alas, while you're ...

Interstellar object 3I/ATLAS is confirmed as a natural comet from beyond our solar system, posing no threat to Earth despite ...

Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which ...

New images of interstellar object 3I/ATLAS reveal geometric structures that defy comet models. Explore why this mysterious ...

Could one comet rewrite what is known about the chemistry and dynamics of distant planetary systems? That’s the question ...

Interstellar object 3I/ATLAS defies expectations with an asymmetric glow as it hurtles toward Jupiter at 60 km/s.

As 2025 draws to a close, we look back at the year and, in the world of science, at the findings that have kept the world on its toes. Space aficionados, in particular, have had a thrilling time.