When two full Moons appear in a single month, the second one is usually called a Blue Moon. However, there is proof that this popular definition may be a misunderstanding picked up by mainstream media in the 1940s! Learn two different ways to determine this special Moon. Plus, see when the next one will be

There's talk that Betelgeuse's recent strange pulsating might be a signal that the star is about to blow apart and become a supernova. But is it true? We explain.

Are you an avid stargazer? If so, you probably want to know when you can see not just the stars but the visible planets in our Solar System as well. These are sometimes referred to as the “naked-eye planets,” because you can see them with the naked eye—no telescope or binoculars needed (except for Neptune!). This

There's been some debate over when we officially ring in the new decade. Did it happen in 2020 or does it start on January 1, 2021? We explain.

On Thanksgiving and Black Friday (November 28-29), skywatchers will be treated to a dazzling spectacle of planetary lineups in the sky after sunset. See when and where to look!

When is the Winter Solstice? The winter solstice, which marks the first day of winter 2024, occurs on Thursday, December 21, 2024 at 4:21 a.m. EST. (for the Northern Hemisphere). Learn what causes this change in seasons and winter solstice traditions from around the world. What Is Winter Solstice? Winter solstice is the astronomical moment

You’ve heard of Daylight Saving Time, Standard Time, Eastern, Central, Mountain, and Pacific Time, but have you heard of the term Greenwich Mean Time, sometimes referred to simply as GMT, or Coordinated Universal Time (UTC), and wondered what the heck it is? In essence, “mean time” is what you would read off of a clock.

NASA’s InSight lander has picked up sounds from the Red Planet for a few months now, and the music coming from it is eerie, to say the least. Take a listen!

When do we fall back and spring forward? We have the dates and history of the time change. Is it a practice whose time has come?

In honor of the anniversary of the Apollo 11 Moon landing, writer Ed Higgins shares his memories of the space event of a lifetime. Plus, check out the TV footage from July 20, 1969! The Apollo 11 Moon Landing Anniversary: Memories Of A Lifetime As the anniversary of the Apollo 11 Moon landing approaches, it