There’s no mistaking Jupiter in the sky these Pottsville winter evenings, rising in the southeast as evening twilight ends.

Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the ...

There’s no mistaking Jupiter in the sky these Butler winter evenings, rising in the southeast as evening twilight ends. In fact, you should be able to easily see it long before twilight fades.

Jupiter's moon count reaches 95+ official satellites. Explore the history of the Jovian system, from Galileo to the latest NASA discoveries.

Sky This Week is brought to you in part by Celestron. Friday, January 23Pluto reaches conjunction with the Sun at 5 A.M. EST.

When Pioneer 10 flew by Jupiter on Dec. 3, 1973, its margin of survival was closer to the knife-edge than it seemed. It ...

Gamera raised $1.6 million to promote its service that combines data about a site's ad experience with data about how its ads ...

Looking for a sky event this week? Check out our full Sky This Week column. January 20: Comet Schaumasse slides by some ...

There’s an old saying of, ‘Never meet your heroes’, the message being that the person you long admired may not turn out to be as great as you think. Luckily, Cecilio Waterman never got the memo.

A distinctive curved marking etched into the Moon’s surface comes into sharp relief this week as winter darkness, crisp air ...

Jupiter’s moon Europa is on the short list of places in our solar system seen as promising in the search for life beyond Earth, with a large subsurface ocean thought to be hidden under an outer shell ...