The discovery of hundreds of new objects in the outer solar system confirms weird gravitational effects that could be caused by “Planet Nine.”
Stars show chemical traces of past "planetary ingestion" that can be used to search for Earth-like planets.
A radioactive isotope profoundly affected the origin and evolution of our solar system. Now, scientists have spotted it in a system of budding stars.
Voyager 1 has likely made the first continuous measurement of the density of matter in interstellar space.
Scientists have discovered a “hellish” new planet that is hotter than molten lava.
No other known object has characteristics similar to EC 002, an ancient meteorite found in an Algerian dune sea last year.
An international team of astronomers snapped this photo of a young star and its two gigantic planets from a distance of 300 light years.
Edward Witten, an influential physicist who developed M-theory, recently started thinking about how to scan the solar system for a primordial black hole.
A telescope looking for dark matter discovered 139 new minor planets lurking beyond Neptune's orbit, which could help scientists look for hidden planets in the outer solar system.
This is the first time a complete protein has been discovered on an object from space, if the study's results are confirmed.