The Voyager probes are each turning off an instrument to avoid ending their 47-year-long missions later this year.

It's a new type of three-body problem for astronomers, who used the Hubble Space Telescope to determine that twin asteroids ...

The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, and has most recently been popularized in the novel and television show '3 ...

NASA astronauts Anne McClain and Nichole Ayers are set to make history as part of NASA’s SpaceX Crew-10 mission. Alongside their international crewmates, they have undergone rigorous training at ...

Illinois’ own Coralie Adam will be joined in a conversation about space by Renae Kerrigan, curator of science and director of the Dome Planetarium at Peoria Riverfront Museum. Adam leads the ...

The revelation that Pluto and its large moon may have collided, causing Pluto to be geologically active, could mean there are ...

Venus, Mars, Jupiter, Saturn, Uranus, and Neptune were already visible in the night sky after dusk this month, but Mercury joined them on Feb. 28. While it's common to see a few planets line up in the ...

A stunning planet parade is now visible in the night sky. A planet parade is when several of our solar system's planets are ...

This phenomenon, known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all ...

This phenomenon known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all ...