A Jupiter-size exoplanet orbiting a dead star baffled astronomers. But the planet named WD 1856 b could preview the fate of ...

Astronomers have used the James Webb Space Telescope (JWST) to observe an oddball gas giant exoplanet orbiting a dead star.

NASA's New Horizons found the solar wind slows as it nears interstellar space, helping improve models of the solar system's ...

A study recently submitted to The Astronomical Journal continues to search for the elusive Planet Nine (also called Planet X), which is a hypothetical planet that potentially orbits in the outer ...

A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday. Limited time: Save 25% on NBC News subscription Get exclusive reporting, live Q&As and ad ...

Two massive planets may have once existed in early solar system before being ejected, leaving behind evidence in unusual ...

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April 23 (UPI) --Rocket Lab launched NASA's new composite solar sail into space where it will undergo weeks of testing, using sunlight to propel it through the solar system. The solar sail technology ...

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 northern lights could mean lights out for the infrastructure we rely on.