The more we learn about exoplanets, the more we realize the universe is stranger than we ever knew.
Some of the most fascinating worlds in our cosmic neighborhood are not planets, but the moons that orbit around them.
Meteor showers are the occasional reminder that the solar system is full of dirty and icy clumps, but you wouldn't describe them that way when you see them shining across the night sky.
Here is a guide to when certain planets will appear brightest and most visible in the 2021 night sky, including a dazzling Venus display at the year's end!
Here are the 10 most noteworthy sky events — including meteor showers and eclipses — that will take place in 2021.
The Mercury program launched the first Americans into space, four on suborbital flights, and two who orbited the Earth.
Humans have sent many missions, both manned and robotic, beyond our planet to explore our neighboring celestial bodies.
Apollo 13 was NASA's third moon-landing mission, but the astronauts never made it to the lunar surface. Here are the events that transpired.
With "Star Wars: The Rise of Skywalker" here and the promise of more plot twists and turns just days away, we look back at the best we’ve ever seen in the "Star Wars" movie franchise.
The annual Perseid meteor shower peaks every August and is often the most dazzling meteor display of the year.