The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...

New simulations suggest binary star systems may be ideal for planet formation, and may produce more gas giants than ...

On a cold, cloudy day in Pittsburgh, the Energy Innovation Center debuted its new 291-kilowatt rooftop solar system. Mayor Corey O’Connor helped flip the ...

That activity was Comet C/2025 R3, which recently made its closest approach to both Earth and the sun. In footage posted by ...

Sun King also employs 40,000 local field agents across Africa and Asia, who go door-to-door setting up systems in communities ...

Astronomers now estimate there is at least one planet for every star in our galaxy. These worlds, called exoplanets, are ...

Long before 3I/ATLAS slipped through the inner solar system, its water had already recorded the kind of place it came from.

For decades, the solar wind has remained one of the most elusive forces in our solar system, shaping space weather and ...

An interstellar comet carries water unlike anything in our solar system, revealing a far colder birthplace and clues about ...

Scientists suggest that a fifth, hidden force linked to dark energy may exist in the solar system but has not yet been ...

Thanks to the sheer mass of Jupiter and fellow gas giant Saturn, the Solar System barycenter is rarely in the center of the ...

Statistics show Pennsylvanians warming to solar as inflation remains stubborn and the cost of electricity rises.