Looking for a sky event this week? Check out our full Sky This Week column. October 17: Catch open cluster M34 Jupiter stands ...

A waning Moon drifts past Jupiter this week, while early risers will find dazzling views of autumn constellations and ...

Sky This Week is brought to you in part by Celestron. Friday, October 17The Summer Triangle is now sinking in the west late ...

"Detecting an exomoon would be quite extraordinary, and because of Io, we know that a volcanic exomoon is possible." When you purchase through links on our site, we may earn an affiliate commission.

Jupiter’s Moon Io in the latest picture taken by the Juno spacecraft. Image: NASA/JPL-Caltech/SwRI/MSSS/Ted Stryk After years of capturing the massive world of ...

NASA’s Juno spacecraft has taken the best images of Jupiter’s moon Io in decades, as it passed by at a distance of 11,645 kilometres on 16 October. Io is slightly larger than Earth’s moon and mottled ...

An exoplanet the size of Earth has been discovered in a distant solar system, and it could be bursting with volcanic activity. According to a paper published on Wednesday in the journal Nature, the ...

An exoplanet covered in so many volcanoes that its molten surface radiates a fiery red has been discovered orbiting a star 66 light-years from Earth. That sentence may ring a bell for Star Wars fans, ...