The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Researchers studying decades of earthquake data say they have found the first evidence that, in addition to spinning backward ...

offering insights that could reshape our understanding of the Earth-Moon system and the broader solar system. The ... Dec. 18, 2024 — Scientists recently led a team that found, for the first ...

The origins of life on our planet remains one of science’s great mysteries. Now, a NASA mission that brought a piece of an ...

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are ...

However, at a distance of around 4 astronomical units from the Sun (AU; 1 AU is the average Sun-Earth distance of 93 ... gas and ice giants in the outer solar system. This first-order model ...

Harvard and Smithsonian (CfA), and its Submillimeter Array (SMA), were critical for identifying a cache of belts surrounding other stars beyond the sun where comets may reside. Regions around 74 stars ...

A NASA satellite that suddenly reappeared after going silent gets credit for the remarkable discovery—a pair of temporary ...

The asteroid Bennu contains all the materials needed for life. This backs up an old hypothesis that the building blocks of ...