On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

Arizona stargazers, mark your calendars because on Friday, Sept. 19, the night sky will host a celestial conjunction. Not to be confused with an alignment, a conjunction occurs when two or more ...

Saturn is the planet of discipline, boundaries and structure — its influence will challenge you to grow. Here's everything ...

The universe has quasi-moons, mini-moons, and moonlets, but no official definition of what counts as a moon.

In a startling new observation, the James Webb Space Telescope (JWST) has detected a planet with an atmosphere made almost ...

Scientists from the University of Cambridge announced this week what they believe is the strongest evidence so far of extraterrestrial life. The place in question is not within our solar system, but ...

As WorldAtlas notes, “Humanity has physically explored more of our oceans than space. However, the journey of discovery in both fields has barely begun, promising endless opportunities for exploration ...

In early 2025, the world observed a rare planetary parade event that won't be seen again until 2040. On the last day of February, seven planets appeared to align at the same time, creating a rare ...

A celestial conjunction featuring the moon, Venus, and the star Regulus will be visible on Friday, Sept. 19. This event will be bright enough to be seen without a telescope, though clouds could ...