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Add Yahoo as a preferred source to see more of our stories on Google. This image of Pluto was made after the New Horizons spacecraft flew past the dwarf planet on July 14, 2015, from a distance of ...

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar System. Named 2023 KQ14, this rare “sednoid” follows an unusual orbit that ...

Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System — a process that’s also applicable for other planets. There could be a ninth ...

NASA plans to build larger solar sails that can generate more thrust. A new unique composite carbon fiber booms, the ACS3 system has the potential to support sails as large as 2,000 square meters, or ...

Scientists have found evidence of a previously-undetected dwarf planet at the edge of the solar system. The object, dubbed 2017 OF201, follows an extreme, oblong orbit, taking some 25,000 Earth years ...

NASA’s Double Asteroid Redirection Test, known as DART, did more than shove a small asteroid into a tighter loop around its companion. The September 2022 impact also measurably changed the binary ...

Now that its reflective sail has deployed fully open in orbit, the Advanced Composite Solar Sail System can be seen in the night sky from many locations across the world! Can you spot the solar sail?

The European Space Agency (ESA) is ready to guide the ESA/NASA Solar Orbiter spacecraft through its closest encounter with Venus so far. Today's flyby will be the first to significantly "tilt" the ...