Light at night may be a sign of life on Earth, but the darkness will proclaim our true intelligence. Check out this video on why we need darkness, from Paul Bogard.

At mid-northern latitudes, the star Arcturus sets about 2 hours after sunset around Halloween. It sets at the same point on the horizon as the summer sun. It's a Halloween ghost of the summer sun and an echo of long summer afternoons.

Photos from the EarthSky community of the bright planet Mars, at its best. Earth passed between Mars and the sun - bringing the planet to a once-in-two-years opposition - on October 13, 2020.

Interstellar space isn't just vacuum. It's full of gases, elements, and dust - very thinly spread, to be sure - but the building blocks of stars and planets.

A fireball is an especially bright meteor from space. It can start out icy and burn up entirely in our atmosphere, or rocky ... in which case a meteorite sometimes falls to Earth's surface. This bright fireball blazed over northeastern Mexico on Tuesday, October 6, 2020.

Like so much in the sky, very close approaches of Mars happen in cycles. Become a Mars guru, here.

Every year at this time, people in the Northern Hemisphere witness the legendary Harvest Moon. This year, the Harvest Moon was near fiery Mars! Photos here from the EarthSky Community.

Brilliant Venus, in and of itself, is worth getting up for, but the tantalizingly close encounter of Venus with the bright star Regulus won't happen again for another 8 years. Start watching them now!

Guy Ottewell's insights on today's autumnal equinox.

Poor Capricornus. The early Greek stargazers labeled it as a Sea Goat, but no amount of squinting - or even imagining - can help you see a Goat in this part of the sky. In 2020, Jupiter and Saturn come to the rescue!