New research suggests meteor showers are so unpredictable due to the Sun’s own motion around the solar‑system barycenter.

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

There are plenty of celestial landmarks you can see with the naked eye, and this month, you can view Mars and four of Jupiter’s 95 moons.

A distant planet's atmosphere shows signs of molecules that on Earth are associated only with biological activity, a possible signal of life on what is suspected to be a watery world, according to a ...

Observations of Jupiter show that ammonia is unevenly distributed in the upper atmosphere, against expectations of uniform mixing. Scientists found evidence for a complicated but apparently real ...