Astronomers may have uncovered a massive hidden planet far beyond Neptune, using decades-old infrared data. The object’s ...

On Saturday (Jan. 10), for example, we will see three satellites on one side of Jupiter (going outward from the planet: Ganymede, Io and Europa ), while the fourth ( Callisto) remains all by itself on ...

Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

Over half of the exhaust methane from lunar spacecraft could end up contaminating areas of the moon that might otherwise ...

Is solar worth it in Australia in 2026? Despite rebate cuts, solar remains the best way to slash energy bills. Learn how to ...

Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists plan to ...

The interstellar comet is on its way out of the solar system. Scientists studying it have observed its composition and ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...

Four weeks into the school year, Caribou-based RSU 39 passed its 2025-26 budget in a third validation referendum after voters rejected it twice during the summer, the first two times in the district’s ...

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the journal Science Advances. It suggests that when our solar system formed, a ...