Here's what happens as the direct rays of the sun slip south of the equator as the seasons change.

The autumn equinox is now upon us! Today marks the moment that the sun crosses the celestial equator, ushering in the beginning of astronomical autumn in the northern hemisphere, which brings with it ...

The James Webb Space Telescope (JWST) and the long-lived Hubble Space Telescope (HST) have been providing amazing images to earthbound viewers for some time now. Along with other instruments, these ...

The weather seems to have skipped a month as the oppressive heat of summer fades into the past, and that’s OK with me. Unfortunately, the last days of summer also bring us to the most rapid loss of ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the Northern Hemisphere).

October's full moon in 2025 is known as the Harvest Moon and will also be the year's first supermoon. The Harvest Moon will reach its peak illumination on the night of Monday, October 6, 2025. The ...

Astronomy enthusiasts, mark September 21st on your calendars. Saturn will be at its closest and brightest, visible to the naked eye. NASA says Venus a ...

Celebrate the autumn equinox with an evening of science, beer, and fun! Join us for two fascinating talks by WashU researchers: “How to Spot an Alien?” — Mikhail Tikhonov (Associate Professor) will ...

Bright nighttime skies are on the way in Michigan as the year's first full supermoon will rise in the sky Monday, astronomers ...

Michigan missed out on a recent "blood moon" lunar eclipse, but just after the official start of fall the year's first supermoon will rise in the night sky. The harvest moon is the first of three ...