Astronomers have found massive galaxies 3 billion years after the Big Bang that are dying from the inside out.
Thanks to NASA’s Dawn spacecraft, we’re finally seeing more of the asteroid Ceres than a fuzzy ball.
A rare type of gravitational lens offers astronomers a close look at a young, dusty galaxy manufacturing hundreds of stars a year.
Look for Venus in the evening skies, and on April 19th, spot Mercury and very faint Mars are near the hairline crescent Moon.
Participate in a world-wide campaign to observe and photograph Comet 67P/C-G as it approaches and recedes from the Sun with Rosetta in tow. Your observations matter.
The stars of northern winter linger in the west — as celestial bears, a lion, and a snake climb in the east. Meanwhile, Jupiter and Venus sparkle overhead.
Amateur astronomer and SkyandTelescope.com reader Mark McCarthy recreates the Herschels’ legendary “Night of Discovery” described in the April 2015 issue of Sky & Telescope.
After serving as caretakers of Canada’s largest telescope for the past six years, volunteers from the RASC’s Toronto club have been given the historic facility outright.