Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

Unlike a total solar eclipse, part of the sun is still visible during a partial solar eclipse, so there is no darkening of the sky or visible solar corona.

Ancient humans probably noticed that the planets, which resemble bright stars, had the freedom to ... that the changing positions of the sun, moon and planets can have an effect on the destinies ...

Consequently, even though it is one of the closest stars ... planets form a tightly packed, close-in system, having short orbital periods of between two and seven Earth days (for comparison, our ...

April marks the last time to see Jupiter at its best before its observing window closes. On Tuesday evening (April 1), ...

Californians can glimpse up to 15 meteors each hour under cloudless skies while the Lyrid meteor shower is underway. The ...

14, 2029, when about half of the sun’s face will be covered by the moon. Just a few short weeks ago, all seven of the visible planets could ... eastward among the stars of Taurus, passing ...

During evenings in April 2025, there are two bright planets visible. The departure of Venus has left Jupiter, in the west at ...