Even if the specific monthly peak of the cycle has passed, it doesn't mean solar activity is over. Strong solar activity ...

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.

KYIV, Ukraine — Ukrainian President Volodymyr Zelenskyy said Tuesday that the Oval Office blowup with U.S. counterpart Donald Trump last week was "regrettable," adding that he stands ready to ...

Varda Space's capsule will reenter Earth's atmosphere at hypersonic speeds, during which it will test a specialized payload.

Studying young gas giant exoplanets' compositions and orbits could help us better understand how our own solar system's gas ...

Studying young gas giant exoplanets' compositions and orbits could help us better understand how our own solar system's gas ...

WASHINGTON — U.S. President Donald Trump will speak with Russian President Vladimir Putin on Tuesday in a possible pivot ...

This discovery by Webb provides strong evidence that the giant planets in HR 8799 formed through core accretion, much like ...

Saturn surpasses Jupiter with 128 newly discovered moons, becoming the planet with the most moons in our solar system.

So exactly how many solar system moons have we found ... "The simplest definition [of a moon] would be an object that is in an orbit around a larger, non-stellar object," Ashton told Live Science.

Most solar companies set the price according to the solar system's wattage. A solar installation's “cost per watt” is a little like the “price per square foot” when you buy a house.

Solar panels can save money on electric bills, but a solar panel system requires a steep upfront investment — $30,000 for the average system including installation ...