This famously colorful and easy-to-split double star is now high in the east a few hours after dark. What colors do you see?

Looking for a sky event this week? Check out our full Sky This Week column. June 4: Jupiter passes south of Pollux. Now that ...

Titan, Saturn’s largest and brightest moon, is located near its host planet early this morning, just northeast of the ringed ...

Standing some 50° high in the south by 10 P.M. local daylight time, M5 is a fabulous globular cluster well within the reach of any instrument, from binoculars to telescopes. It is even visible to some ...

Asteroid 3 Juno stands still in the sky tonight. Find it in far eastern Aquila, visible in the early-morning hours before ...

Bright Mercury is on show tonight, standing above the western horizon in line with Venus and Jupiter after sunset.

Mercury reaches greatest elongation in the evening sky this month. Venus and Jupiter have a spectacular conjunction, and later in the month the Moon occults Venus. Meanwhile, Jupiter drops deeper into ...

Jupiter passes 6° due south of Pollux at 7 A.M. EDT, although neither object is visible in the daylit sky. Instead, check out the scene after sunset this evening, with Jupiter still south of Pollux ...

Harry Clement Stubbs – perhaps better known by his penname, Hal Clement – was born near Boston on May 30, 1922. Stubbs earned a B.S. in astronomy from Harvard University in 1943, followed by master’s ...

Early this morning, Monday, June 1, the state owned China Aerospace Science and Technology Corporation (CASC) successfully completed the maiden flight of the reusable Long March 12B — a two-stage, 236 ...