The newcomer replacing Pluto presently goes by “Planet Nine.” If and when it finally shows up, it will get the honor of a ...

The beginning of a new year serves as an alluring blank slate on which you’re invited to cast all your aspirations for the ...

Beyond Neptune lies the Kuiper Belt, a vast region of icy bodies offering crucial insights into the solar system’s formation.

From the very first days of January, people around the world can see a number of magical events in the sky - from the ...

A rare four-planet conjunction will be visible most of this month as Venus, Jupiter, Saturn, and Mars light up the sky.

During January 2025, a large planetary conjunction involving four planets — Venus, Saturn, Jupiter and Mars — will be visible ...

A few decades ago, the Solar System had nine planets, but in 2006 the International Astronomical Union reclassified Pluto as ...

January's skywatching highlights include four planets visible to the naked eye, Venus and Saturn's conjoin, and red planet ...

Behold, the giants! The Hubble Space Telescope has completed a decade of observing Jupiter, Saturn, Uranus and Neptune.

Once the ball drops and a new year officially kicks off, it’s natural to wonder what your 2025 horoscope has in store. After ...

Despite suggestions the planet could be due to a statistical anomaly and selection bias, the team believes the objects could be moving due to the influence of a large object beyond Neptune's orbit.

NASA's TESS satellite made the find. A Neptune-sized planet closely orbiting its host star has just been discovered, making it only the fourth object of its kind ever identified. Scientists ...