Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than previous interstellar visitors.

NASA's Mars rover Curiosity acquired this image of the ridge in front of it, which it was scheduled to drive down the weekend of Sept. 27-28, 2025. To either side of the ridge are two hollows, ...

NASA's Mars Reconnaissance Orbiter (MRO) has captured several images of the Insight lander on the Red Planet between 2018 and 2024. See a time-lapse of the imagery here. Credit: NASA/JPL-Caltech/Unive ...

A crater on Mars has a bright patch of ice. It's the second time in over a decade that the crater and ice has been observed by the Mars Reconnaissance Orbiter. Credit: NASA/JPL/University of Arizona ...

Harvard scientist Loeb says comet-like 3I/ATLAS is far larger than expected and could offer clues about alien technology.

For as long as we’ve looked up at the night sky, Mars is the one planet that has stood out from all the rest. Glowing red in the distant darkness, it has been an obsession of humans for millennia.

Preparations for the second-ever launch of Blue Origin's powerful New Glenn rocket are underway on Florida's Space Coast, as NASA's twin ESCAPADE probes await their mission to Mars.

The first mission of the program, Artemis I, lifted off on November 16, 2022. The uncrewed flight to test the equipment was, overall, a success. From the first thundering moments of liftoff to the ...

After all the tests, NASA determined that Artemis II was safe to fly with its current heat shield, but NASA decided to use a modified “loft” trajectory rather than skip entry. Orion program manager ...

Harvard astrophysicist Avi Loeb suggests interstellar object 3I/ATLAS could be far more massive than previously thought.

On 1992, Nasa launched the Mars Observer, aiming to unlock the mysteries of the Red Planet, while in 1977, the first Chicago Marathon was held, ushering in a new era of long-distance running in the Un ...