Moon near First Point in Aries

The November 10, 2016, moon is near the First Point of Aries on the sky's dome. How to spot it, and what it means.

Quasars’ unexpected giant glowing halos

Astronomers didn't expect so many quasars to have halos. The discovery may help them probe the large-scale structure of the universe, aka the cosmic web.

Watching Orion

Orion the Hunter - one of the most familiar constellations to many because of its prominent Belt of 3 stars - is coming back into view in the evening sky.

Northerly stars Capella and Aldebaran

For us in the Northern Hemisphere, Capella and Aldebaran in the east each evening signal that autumn is here, and winter is coming.

Decline of Arctic’s thickest sea ice

The Arctic's multi-year sea ice - ice that survives the summer melt - is weaker and there's less of it. Satellite images show the difference between 1984 and now.

Taurid meteor over Atlantic coast

The long-lasting 2016 Taurid meteor shower hasn't been as spectacular as last year's shower. But, like all Taurid showers, it has produced some fireballs!

Moon at first quarter on November 7

Watch for the November 7, 2016 first quarter moon high in the sky as darkness falls.

Daylight saving time worth the trouble?

Who benefits from the time change? A scientist on why DST is more burden than boon.

Moon and Mars on November 5 and 6

Note the moon's position relative to Mars across these 2 evenings. Its eastward motion on our sky's dome is due to its eastward motion in orbit around Earth.

Into the thin air

Photographer Jeff Dai captured this self-portrait atop a glacier - 17,000 feet (5,300 m) above sea level - in the Himalayas of Tibet.