Neptune and Saturn are two Moon-widths apart all month, while the morning sky hosts Venus and Uranus together in Taurus.

A tiny grain from asteroid Ryugu has revealed djerfisherite, a mineral that normally forms in scorching, oxygen-poor settings ...

A study published Monday in the Proceedings of the National Academy of Sciences found that increases in salinity in seawater near the surface could help explain some of the decrease in Antarctic sea ...

In the frozen outskirts of the solar system, a reddish dwarf planet orbits in silence. Known as Sedna, it is so distant that one trip around the Sun takes more than 11,000 years. For much of that time ...

A new gas giant world discovered by citizen scientists using data from NASA's exoplanet-hunting spacecraft TESS is cool, ...

Yale University ecologists reveal a lizard lineage that rode out the dinosaur-killing asteroid event with unexpected ...

Professional astrologer Steph Koyfman reads your monthly horoscope—and spells out how it may shape your travels.

Scientists have traced a 60-million-year volcanic trail from Iceland to Ireland to a deep mantle plume that shaped the North ...

At the time of this writing, June 23, Jupiter was about half a degree left of the afternoon Sun and due to pass behind it ...

What processes during the formation of Pluto's largest moon, Charon, potentially led to it having cryovolcanism, and even an ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Sky This Week is brought to you in part by Celestron. Friday, June 27The Moon passes 3° north of Mercury at 2 A.M. EDT. By evening the two are visible in the western sky, roughly 8° high an hour after ...