Every four years, a day is added to the calendar, but why? How and when did humans decide it was necessary? Did you know the calendar will eventually need to change again?
No telescope is needed to view the solar system's largest planet as it moves into opposition in September, making it the biggest, brightest, and closest in all of 2022.
July's Thunder Moon will give a spectacular show over Indiana, Illinois, Kentucky, and Tennessee as it's the biggest and brightest supermoon of the year.
Monday marks the day when astronomers made a startling announcement: after years of searching, they’ve discovered an Earth-like planet outside the solar system that may very well be habitable.